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Model of Diffusion of Sulfur in Soda-lime-silicate Glass:An Experimental and Comparative Study
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作者 孟政 HONG Wang +1 位作者 WANG Yongbin JIANG Hong 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2017年第1期76-79,共4页
The diffusion property of sulfur on the soda-lime-silicate float glass surface was studied by using secondary ion mass spectroscopy(SIMS).According to the Fick's Second Law,two models of diffusion of sulfur on the ... The diffusion property of sulfur on the soda-lime-silicate float glass surface was studied by using secondary ion mass spectroscopy(SIMS).According to the Fick's Second Law,two models of diffusion of sulfur on the glass surface were built.When the diffusion of sulfate(S^6+) is considered uniquely,the concentration-depth profile of sulfur can not be fitted very well,especially on the top surfaces of the air side and tin side of float glass.So the diffusion of sulfide(S^2-) on the profile of sulfur can not be ignored.The concentration-depth profile of sulfur on both sides of glass can be fitted more exactly when both S^6+ and S^2- are considerd.Based on the above-mentioned fitting results,it is concluded that the diffusion coefficents of S^6+ and S^2- of tin side are larger than those of the air side.Moreover,the diffusion coefficents are related to the contacted medium. 展开更多
关键词 DIFFUSION SULFUR soda-lime-silicate glass secondary ion mass spectroscopy
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Thermoluminescent response of gamma irradiated Na^(+)–Cu^(+) ionexchanged silicate glass in large dose range
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作者 Safa Toumi Khaled Farah 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2023年第5期22-32,共11页
The introduction of metals into vitreous matrices is the origin of various interesting phenomena;in particular,the presence of copper ions in glass has been the subject of considerable research because of its numerous... The introduction of metals into vitreous matrices is the origin of various interesting phenomena;in particular,the presence of copper ions in glass has been the subject of considerable research because of its numerous applications.The ion-exchange process is primarily used to introduce copper ions into glass matrices.The thermoluminescence(TL)of silicate glass was studied to evaluate its potential as gamma-sensitive material for dosimetric applications;the effect of copper doping on the thermoluminescent sensitivity was investigated using the Cu-Na ion-exchange technique for different concentrations and doping conditions,over a wide dose range of 10 mGy to 100 kGy.The results showed that Cu doping significantly improved the sensitivity of the glasses to gamma radiation.After the ion-exchange,two peaks appeared in the glow curves at approximately 175 and 230°C,respectively,which possibly originated from the Cu^(+) centers,along with a weak TL peak at around 320℃.We also attempted to explain the origin of the observed thermoluminescence by exploiting the Electron paramagnetic resonance(EPR)spectra.The results clearly show quenching of the TL emission with increasing copper concentrations.The present work indicates that the thermoluminescence response of these glasses to gamma rays can be reasonably measured in the range of 0.001-100 kGy.This study also facilitates the understanding of the basic TL mechanism in this glass system. 展开更多
关键词 Cu-Na ion-exchange silicate glass THERMOLUMINESCENCE Gamma irradiation Electron paramagnetic resonance
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Properties of Local Structure Surrounding Eu^(3+)Ion in Various Niobate-Silicate Glasses 被引量:1
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作者 王绩伟 宋宏伟 +3 位作者 夏海平 吕少哲 许武 张家骅 《Journal of Rare Earths》 SCIE EI CAS CSCD 2003年第4期404-408,共5页
A Series of niobate silicate glasses doped with Eu 3+ ions were prepared. The emission, phonon side band spectra, fluorescence line narrowing spectroscopy and fluorescence lifetimes in these glasses were studie... A Series of niobate silicate glasses doped with Eu 3+ ions were prepared. The emission, phonon side band spectra, fluorescence line narrowing spectroscopy and fluorescence lifetimes in these glasses were studied. The intensity parameters and crystal field parameter of Eu 3+ were obtained. The results indicate that the intensity ratio of the electric dipole to magnetic dipole transition and the intensity parameter Ω 2 increase with the increasing concentration of Nb 2O 5, indicating that the symmetry becomes lower, the Eu O bonds become stronger and the covalency of Eu O bond increases. The value of B 20 decreases with the increasing concentration of Nb 2O 5, indicating that the distance between the Eu 3+ ion and oxygen decreases and the Eu O bond becomes strong, corresponding to the results of the former. As the concentration of Nb 2O 5 increases, the electron phonon coupling becomes stronger, thus the nonradiative transition rate of 5D 0 becomes larger and the lifetime of 5D 0 becomes shorter. 展开更多
关键词 optics Eu 3+ doped niobat silicate glass intensity parameters lifetime phonon side bands crystal field parameters rare earths
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NMR Study on Structural Characteristics of Rare Earth Doped Boro-Alumino-Silicate Glasses 被引量:5
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作者 陆春华 倪亚茹 +1 位作者 张其土 许仲梓 《Journal of Rare Earths》 SCIE EI CAS CSCD 2006年第4期413-417,共5页
The structural characteristics of Re2O3 doped B2O3-Al2O3-SiO2 glasses and factors such as the component and heat-treating conditions affecting the glass structure were investigated by magic angle spin nuclear magnetic... The structural characteristics of Re2O3 doped B2O3-Al2O3-SiO2 glasses and factors such as the component and heat-treating conditions affecting the glass structure were investigated by magic angle spin nuclear magnetic resonance (MAS NMR) spectroscopy and differential thermal analysis (DTA). It is found that, in B2O3-Al2O3-SiO2 glass, the boron (4), and Al(5), Al(6) changes to Al(4). On the other hand, compared with Ba^2+ , RE^3+ can accumulate the boron network because of its higher field strength, which results in a large network structure. With the increase of samarium oxide, the silicate coordination Qa(3T) will have predominance gradually. Heat-treatment has little effect on the boron and aluminum coordination sites in the glass structure. 展开更多
关键词 glass forming glass structure magic angle spin nuclear magnetic resonance boro-alumino-silicate glass rare earths
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Trace element partitioning between amphibole and hydrous silicate glasses at 0.6–2.6 GPa
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作者 Bo Zhang Xianxu Hu +2 位作者 Peng Li Qizhe Tang Wenge Zhou 《Acta Geochimica》 EI CAS CSCD 2019年第3期414-429,共16页
Partitioning behavior between amphibole and silicate glass of thirty-three minor and trace elements(Sc,Ti, V, Cr, Co, Rb, Sr, P, Y, Zr, Nb, Cs, Ba, K, La, Ce, Pr,Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, Pb,... Partitioning behavior between amphibole and silicate glass of thirty-three minor and trace elements(Sc,Ti, V, Cr, Co, Rb, Sr, P, Y, Zr, Nb, Cs, Ba, K, La, Ce, Pr,Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, Pb,Th, and U) have been determined experimentally. Products of crystallization of hydrous basalt melts from 0.6 GPa/860 °C up to 2.6 GPa/970 °C were obtained in a multianvil apparatus. Major and trace element compositions of amphibole and glass were determined with a combination of electron microprobe and laser ablation inductively coupled plasma mass spectrometry. The main mineral phase is calcic amphibole, and the coexisting glass compositions are tonalite, granodiorite, and granite. The compatibility of rare earth elements increase at 915 °C and then decrease at 970 °C, but the compatibility of most of these elements shows a continued, significant increase with increasing pressure. For high-field strength elements, large ion lithophile elements, actinide compatibility decrease with increasing temperature or pressure, but transition metals show a continued increase in compatibility within the temperature–pressure conditions. From mathematical and graphical fitting, we determined best-fit values for the ideal ionic radius(r_0, 1.01–1.04 ?), the strain-free partitioncoefficient(D_0, 1.18–1.58), and apparent Young's modulus(E, 142–370 GPa) for the M4 site in amphibole according to the lattice strain model. The D_0^(M4) for rare earth elements rises at 915 °C and then drops at 970 °C at 0.6 GPa.However, the D_0^(M4) values are positively proportional to the pressure for rare earth elements in the amphibole-glass pairs at 0.6–2.6 GPa and 970 °C. Furthermore, the derived best-fit values for r_0^(M4) and E^(M4) are almost constant and trend to increase with rising temperature and pressure,respectively. The partition coefficient is distinctly different for different melt compositions. The rare earth elements become more enriched in amphibole if the quenched glass is granodiorite or granite compared to the tonalitic glasses. 展开更多
关键词 Amphibole silicate glass TRACE elements PARTITION COEFFICIENTS Lattice strain model
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Space-selective Precipitation and Dissolution of Ag and Au Nanoparticles in Silicate Glasses by Femtosecond Laser Irradiation
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作者 胡晓 邱建荣 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2007年第B12期790-793,共4页
In Ag^+ and Au^3+ co-doped silicate glass sample, we realized controllable precipitation and dissolution of Ag and Au nanoparticles. A new method was proposed for separate precipitation of Ag and Au nanoparticles in... In Ag^+ and Au^3+ co-doped silicate glass sample, we realized controllable precipitation and dissolution of Ag and Au nanoparticles. A new method was proposed for separate precipitation of Ag and Au nanoparticles in different areas of the same sample through femtosecond laser irradiation and further annealing; different colors were obtained in the same glass. We also studied the laser dissolution of Ag and Au nanoparticles in the Ag^+ and Au^3+co-doped silicate glass. The mechanism of the phenomena we observed was discussed briefly. 展开更多
关键词 femtosecond laser Ag^+ and Au^3+ nanopaticle silicate glass
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Spectroscopic Properties and Effect of Radiation Trapping of a New Er^(3+)/Yb^(3+) Co-Doped Tellurite-Silicate Glasses
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作者 Xu Tiefeng Zhang Xudong +3 位作者 Nie Qiuhua Dai Shixun Shen Xiang Zhang Xianghua 《Journal of Rare Earths》 SCIE EI CAS CSCD 2006年第5期542-542,共1页
A new serials of Er^3+/Yb^3+ co-doped tellurite-silicate glasses were prepared by the technique of high-temperature mehing. The thermal stability, absorption spectra, emission spectra and upconversion spectra were m... A new serials of Er^3+/Yb^3+ co-doped tellurite-silicate glasses were prepared by the technique of high-temperature mehing. The thermal stability, absorption spectra, emission spectra and upconversion spectra were measured and investigated. It is found that these kinds of glasses have good thermal stability, broad FWHM and large stimulated emission cross-section. The three upconversion emission at 525, 546, 658 nm, corresponding to the ^2H11/2→^4Ⅰ15/2, ^4S3/2→4^Ⅰ15/2 and ^F9/2→^4Ⅰ15/2 transitions of Dr^3+ ions, 展开更多
关键词 spectroscopic properties upconversion spectra radiation trapping effect tellurite-silicate glasses rare earths
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Properties of Zinc Silicate Glasses and Melts
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作者 Doris Ehrt Sylvia Flugel 《材料科学与工程(中英文A版)》 2011年第3X期312-320,共9页
关键词 硅酸盐玻璃 锌含量 熔体 性能 线性热膨胀系数 结构效应 转变温度 结晶行为
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Tool Wear and Its Effect on Surface Roughness in Diamond Cutting of Glass Soda-lime 被引量:7
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作者 JIA Peng ZHOU Ming 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2012年第6期1224-1230,共7页
For the technology of diamond cutting of optical glass, the high tool wear rate is a main reason for hindering the practical application of this technology. Many researches on diamond tool wear in glass cutting rest o... For the technology of diamond cutting of optical glass, the high tool wear rate is a main reason for hindering the practical application of this technology. Many researches on diamond tool wear in glass cutting rest on wear phenomenon describing simply without analyzing the genesis of wear phenomenon and interpreting the formation process of tool wear in mechanics. For in depth understanding of the tool wear and its effect on surface roughness in diamond cutting of glass, experiments of diamond turning with cutting distance increasing gradually are carried out on soda-lime glass. The wear morphology of rake face and flank face, the corresponding surface features of workpiece and the surface roughness, and the material compositions of flank wear area are detected. Experimental results indicate that the flank wear is predominant in diamond cutting glass and the flank wear land is characterized by micro-grooves, some smooth crater on the rake face is also seen. The surface roughness begins to increase rapidly, when the cutting mode changes from ductile to brittle for the aggravation of tool wear with the cutting distance over 150 m. The main mechanisms of inducing tool wear in diamond cutting of glass are diffusion, mechanical friction, thermo-chemical action and abrasive wear. The proposed research makes analysis and research from wear mechanism on the tool wear and its effect on surface roughness in diamond cutting of glass, and provides theoretical basis for minimizing the tool wear in diamond cutting brittle materials, such as optical glass. 展开更多
关键词 diamond cutting tool wear surface roughness soda-lime glass
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Modeling and Evaluating of Surface Roughness Prediction in Micro-grinding on Soda-lime Glass Considering Tool Characterization 被引量:5
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作者 CHENG Jun GONG Yadong WANG Jinsheng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2013年第6期1091-1100,共10页
The current research of micro-grinding mainly focuses on the optimal processing technology for different materials. However, the material removal mechanism in micro-grinding is the base of achieving high quality proce... The current research of micro-grinding mainly focuses on the optimal processing technology for different materials. However, the material removal mechanism in micro-grinding is the base of achieving high quality processing surface. Therefore, a novel method for predicting surface roughness in micro-grinding of hard brittle materials considering micro-grinding tool grains protrusion topography is proposed in this paper. The differences of material removal mechanism between convention grinding process and micro-grinding process are analyzed. Topography characterization has been done on micro-grinding tools which are fabricated by electroplating. Models of grain density generation and grain interval are built, and new predicting model of micro-grinding surface roughness is developed. In order to verify the precision and application effect of the surface roughness prediction model proposed, a micro-grinding orthogonally experiment on soda-lime glass is designed and conducted. A series of micro-machining surfaces which are 78 nm to 0.98 ~tm roughness of brittle material is achieved. It is found that experimental roughness results and the predicting roughness data have an evident coincidence, and the component variable of describing the size effects in predicting model is calculated to be 1.5x 107 by reverse method based on the experimental results. The proposed model builds a set of distribution to consider grains distribution densities in different protrusion heights. Finally, the characterization of micro-grinding tools which are used in the experiment has been done based on the distribution set. It is concluded that there is a significant coincidence between surface prediction data from the proposed model and measurements from experiment results. Therefore, the effectiveness of the model is demonstrated. This paper proposes a novel method for predicting surface roughness in micro-grinding of hard brittle materials considering micro-grinding tool grains protrusion topography, which would provide significant research theory and experimental reference of material removal mechanism in micro-grinding of soda-lime glass. 展开更多
关键词 micro-grinding tool topography characterization soda-lime glass surface roughness prediction
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Spectroscopic Properties and Judd-Ofelt Theory Analysis of Er^(3+)-Doped Heavy Metal Oxyfluoride Silicate Glass 被引量:3
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作者 徐时清 杨中民 +3 位作者 戴世勋 张军杰 胡丽丽 姜中宏 《Journal of Rare Earths》 SCIE EI CAS CSCD 2004年第3期375-380,共6页
Er^(3+)-doped heavy metal oxyfluoride silicate glass was fabricated and characterized, and the absorption spectrum and fluorescence spectrum of the glass were studied. The Judd-Ofelt intensity parameters Ω_t (t =2, ... Er^(3+)-doped heavy metal oxyfluoride silicate glass was fabricated and characterized, and the absorption spectrum and fluorescence spectrum of the glass were studied. The Judd-Ofelt intensity parameters Ω_t (t =2, 4, 6), spontaneous transition probability, fluorescence branching ratio and radiative lifetime of each energy levels for Er^(3+) were calculated by Judd-Ofelt theory, and stimulated emission cross-section of (()~4I_(13/2))→(()~4I_(15/2)) transition was calculated by McCumber theory. The results show that fluorescence full width at half maximum and stimulated emission cross-section of Er^(3+)-doped heavy metal oxyfluoride silicate glass are broad and large, respectively. Compared with other host glasses, the gain bandwidth property of Er^(3+)-doped heavy metal oxyfluoride silicate glass is close to those of tellurite and bismuth glasses, and has advantage over those of silicate, phosphate and germante glasses. 展开更多
关键词 inorganic nonmetallic materials heavy metal oxyfluoride silicate glass Er^(3+) ion spectroscopic properties Judd-Ofelt theory rare earths
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Green and red up-conversion emissions and thermometric application of Er^(3+) -doped silicate glass 被引量:3
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作者 李成仁 董斌 +1 位作者 李磊 雷明凯 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第1期224-227,共4页
The green and red up-conversion emissions centred at about 534, 549 and 663 nm of wavelength, corresponding respectively to the ^2H11/2 → ^4I15/2, ^4S3/2 → ^4I15/2 and ^4F9/2 → ^4I15/2 transitions of Er^3+ ions, h... The green and red up-conversion emissions centred at about 534, 549 and 663 nm of wavelength, corresponding respectively to the ^2H11/2 → ^4I15/2, ^4S3/2 → ^4I15/2 and ^4F9/2 → ^4I15/2 transitions of Er^3+ ions, have been observed for the Er^3+-doped silicate glass excited by a 978 nm semiconductor laser beam. Excitation power dependent behaviour of the up-conversion emission intensity indicates that a two-photon absorption up-conversion process is responsible for the green and red up-conversion emissions. The temperature dependence of the green up-conversion emissions is also studied in a temperature range of 296-673 K, which shows that Er^3+-doped silicate glass can be used as a sensor in high-temperature measurement. 展开更多
关键词 Er^3+-doped silicate glass up-conversion emission fluorescence intensity ratio
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Broadband Near-Infrared Emission from Transparent Ni^2+ -Doped Sodium Aluminosilicate Glass Ceramics 被引量:1
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作者 周时凤 冯高峰 +2 位作者 徐时清 吴伯涛 邱建荣 《Chinese Physics Letters》 SCIE CAS CSCD 2006年第11期2996-2998,共3页
Broadband near-infrared emission from transparent Ni^2+-doped sodium aluminosilicate glass-ceramics is observed. The broad emission is centred at 1290nm and covers the whole telecommunication wavelength region (1100... Broadband near-infrared emission from transparent Ni^2+-doped sodium aluminosilicate glass-ceramics is observed. The broad emission is centred at 1290nm and covers the whole telecommunication wavelength region (1100- 1700hm) with full width at half maximum of about 340hm. The observed infrared emission could be attributed to the 3T2(F) → 3A2(F) transition of octahedral Ni^2+ ions that occupy high-field sites in nanocrystals. The product of the lifetime and the stimulated emission cross section is 2.15 × 10^-24 cm^2s. It is suggested that Ni^2+- doped sodium aluminosilicate glass ceramics have potential applications in tunable broadband light sources and broadband amplifiers. 展开更多
关键词 silicate glass NICKEL STATES
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Corrosion mechanism of HVOF silicate glass coating in 5% NaCl solution 被引量:1
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作者 占君 陈桂明 +3 位作者 刘晓方 查柏林 张倩 刘新年 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2010年第2期264-268,共5页
On the basis of good anticorrosion capability of silicate glass,silicate glass coating was sprayed by high velocity oxygen fuel (HVOF) and the corrosion mechanism in 5% NaCl solution was studied. Scanning electron mic... On the basis of good anticorrosion capability of silicate glass,silicate glass coating was sprayed by high velocity oxygen fuel (HVOF) and the corrosion mechanism in 5% NaCl solution was studied. Scanning electron microscope (SEM) ,energy dispersive X-ray analysis (EDX) ,X-ray diffraction (XRD) and potentiom- eter were used to study the coating composition and corrosion process. The result shows that silicate glass coating is entirely noncrystallizable. Silicate glass coating has very low incidence of hole with compact structure. Electric double-layer can form at coating/solution interface and corrosive solution performs as a lead connecting the coating surface and substrate after permeating through glass coating. The corrosion mechanism of silicate glass coating is similar to that of glass and the entire corrosion process can be divided into some states. The whole corrosion process happens in glass coating without substrate basically. The fluctuation of the self-corrosion potential about glass coating in corrosion solution can help to research the corrosion process. 展开更多
关键词 silicate glass coating self-corrosion notential alkali metals
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Crystallinity and crystallization mechanism of lithium aluminosilicate glass by X-ray diffractometry 被引量:4
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作者 郭兴忠 杨辉 +2 位作者 曹明 韩陈 宋芳芳 《中国有色金属学会会刊:英文版》 CSCD 2006年第3期593-597,共5页
The crystallinity of lithium aluminosilicate(LAS) glass after crystallization were studied at different temperatures by X-ray diffractometry and the crystallinity of the standard glass ceramic with known crystal and g... The crystallinity of lithium aluminosilicate(LAS) glass after crystallization were studied at different temperatures by X-ray diffractometry and the crystallinity of the standard glass ceramic with known crystal and glass phases was examined. The crystallization mechanism of LAS glass was analyzed by the crystallinity, with a formula relating the crystallinity (X) and temperature (T). The results show that the calculated crystallinity of LAS glass by XRD increases with the crystallization temperature, in the range of 40%?50%, which is close to the calculated ones of standard samples with spodumene quartz ratio of 40%?70%. The activation energy of LAS glass is different within different temperature ranges; nEc is 125.44 kJ/mol at 710?810 ℃ and nEc is 17.42 kJ/mol at 810?980 ℃, which indicates different crystallization mechanisms. It has been proved that the required energy for crystallization of glass in the lower temperature range includes the interfacial energy between glass and crystalline phase and the free energy difference of atoms in structures of glass and crystal, and in the higher temperature ranges only the interfacial energy between glass and crystalline phase is considered. 展开更多
关键词 玻璃陶瓷 铝硅酸盐 结晶度 晶化机制 活化能 XRD
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XPS and Raman studies of electron irradiated sodium silicate glass 被引量:1
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作者 陈亮 王铁山 +3 位作者 张根发 杨坤杰 彭海波 张利民 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第12期352-357,共6页
The microstructure modifications of sodium silicate glass induced by 1.2-MeV electron irradiation are studied by x-ray photoelectron spectroscopy and Raman spectroscopy. Depth profile analyses are also performed on th... The microstructure modifications of sodium silicate glass induced by 1.2-MeV electron irradiation are studied by x-ray photoelectron spectroscopy and Raman spectroscopy. Depth profile analyses are also performed on the irradiated glass at 109 Gy. A sodium-depleted layer with a thickness of a few tens of nanometers and the corresponding increase of network polymerization on the top surface are observed after electron bombardment, while the polymerization in the subsurface region has a negligible variation with the irradiation dose. Moreover, the formation of molecular oxygen after electron irradiation is evidenced, which is mainly aggregated in the first two-micron-thick irradiated glass surface. These modifications are correlated to the network relaxation process as a consequence of the diffusion and desorption of sodium species during electron irradiation. 展开更多
关键词 silicate glass electron irradiation network polymerization oxygen molecule
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Recycling water glass from wet reclamation sewage of waste sodium silicate-bonded sand 被引量:2
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作者 Li-chi Wang Wen-ming Jiang +2 位作者 Xiao-long Gong Fu-chu Liu Zi-tian Fan 《China Foundry》 SCIE 2019年第3期198-203,共6页
Wet reclamation of waste sodium silicate-bonded sand produces much alkaline sewage and causes pollution. Recycling water glass from wet reclamation sewage of the waste sodium silicate-bonded sand can solve pollution i... Wet reclamation of waste sodium silicate-bonded sand produces much alkaline sewage and causes pollution. Recycling water glass from wet reclamation sewage of the waste sodium silicate-bonded sand can solve pollution issues and generate economic benefits. In this work, the wet reclamation sewage was filtered, and the filtrate was causticized with a quicklime powder to produce a lye. The effects of causticization temperature, causticization time, and the amount of quicklime powder on the causticization rate were studied. The lye was used to dissolve the silica in the filtration residue to prepare a sodium silicate solution. The effects of the mass of filtration residue, dissolution temperature, and dissolution time on sodium silicate modulus were studied. Finally, the recycled water glass was obtained by concentrating the sodium silicate solution, and the bonding strength of the recycled water glass was tested. The results showed that the causticization rate could be improved by increasing the amount of quicklime powder, causticization temperature, and causticization time, and the highest causticization rate was above 92%. Amorphous silica in the filtration residue dissolved in the lye. Increasing the amount of the filtration residue, dissolution temperature, and dissolution time could improve the sodium silicate modulus. The bonding strength of the recycled water glass was close to that of commercial water glass. The recycled water glass could be used as a substitute for the commercial water glass. 展开更多
关键词 WASTE sodium silicate-bonded SAND wet reclamation SEWAGE treatment CAUSTICIZATION RECYCLING water glass
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STUDY ON THE POLYMERIZATION DEGREE OF SILICATE ANIONS IN THE SILICATE GLASS BY TRIMETHYLSILYLATION METHOD
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作者 朱翠兰 林云飞 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 1989年第1期37-46,共10页
In the present paper,a mixed solvent method is applied to the trimethylsilylation of silicate glass,and the polymerization degree and its distribution of silicate anions in the silicate glass are measured by means of ... In the present paper,a mixed solvent method is applied to the trimethylsilylation of silicate glass,and the polymerization degree and its distribution of silicate anions in the silicate glass are measured by means of the analyses of gas chromatography-mass spectrography. 展开更多
关键词 silicate anions silicate glass POLYMERIZATION Trimethylailylation
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Formation of Na_(1+x)V_3O_8 Nanoribbon Thin Film from V_2O_5 Xerogel on Sodium Silicate Glass Substrate
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作者 GUO Yi XU Jin-jie LI Jun YANG Wen-sheng 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2007年第4期381-383,共3页
Na1+xV3O8 nanoribbon thin film was successfully fabricated by annealing the V2O5 xerogel film on sodium sili-cate glass substrate at 450℃. It has been identified that the amount of sodium ions diffused into the V2O5... Na1+xV3O8 nanoribbon thin film was successfully fabricated by annealing the V2O5 xerogel film on sodium sili-cate glass substrate at 450℃. It has been identified that the amount of sodium ions diffused into the V2O5 xerogel film increases with the high temperature of annealing treatment. The sodium glass substrate serves as a limited sodium source to induce the transformation from V2O5 to Na1+xV3O8. 展开更多
关键词 Vanadium pentoxide Sodium silicate glass NANORIBBON Cathode materials
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Interaction of RuO<sub>2</sub>and Lead-Silicate Glass in Thick-Film Resistors 被引量:3
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作者 Gulmurza Abdurakhmanov Gulbahor S. Vakhidova Lutfullo X. Tursunov 《World Journal of Condensed Matter Physics》 2011年第1期1-5,共5页
Results of investigation of X-ray diffraction, infrared and optical spectra of powders of the ruthenium dioxide, lead-silicate glass as well as their mixture before and after sintering are reported. Sintering conditio... Results of investigation of X-ray diffraction, infrared and optical spectra of powders of the ruthenium dioxide, lead-silicate glass as well as their mixture before and after sintering are reported. Sintering conditions typical for thick film resistors were used. Intensity of main lines of RuO2 in X-ray diffraction patterns of sintered mixtures decreases and they slightly shift towards small angles. No new reflexes appear in these patterns. Absorbance of RuO2 in the range of 2.5-100 μm is proportional to and featureless. Infrared spectrum of lead-silicate glass has absorption bands of [SiO4]4- tetrahedra and Pb-O bonds only. Optical spectrum of RuO2 has wide absorption bands at 950 and 370 nm. Spectra of the mixture of RuO2 and glass powders before and after sintering are different indicating that there is interaction between them during the sintering process. Concentration of free charge carriers estimated from the optical spectra is about 1021 cm-3. 展开更多
关键词 Ruthenium Dioxide Lead-silicate glass Thick Film RESISTORS Infra Red And Optical Spectra X-Ray Diffraction
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