浅议明初龙泉窑烧造官瓷之事实与瓷品特征

明代龙泉窑烧制官窑瓷器的历史,曾经众说纷纭,枫洞岩窑址的发掘,揭开了中国青瓷史上的一个亮点。明代枫洞岩窑场为皇家依样制作瓷器的定性是不争的事实;历史文献提供龙泉窑烧制皇家瓷器有力证据;明初龙泉窑烧制官器的瓷品有着造型粗犷,制作规整,釉层肥厚,釉质成熟等特征。本文对明初龙泉烧制宫廷瓷器相关情况进行系统梳理,对研究者有一定的参考意义。

诗情雅意鉴瓷品——读陈文增先生自题咏瓷诗

诗的创作需要激情,陶瓷创作亦需要激情。两者交融亦成就了陈文增先生陶瓷作品的大气磅礴和鲜活生动。本文通过对陈文增先生自题咏瓷诗的解读,进而感受其陶瓷艺术作品内涵、品位和生命力。

名人佳作入青瓷

经济繁荣、文化交流、人际关系的调和，离不开赠送礼品。礼品不但反映经济价值，同时也反映文化品位，逐渐被更多的人所重视。

能量色散X射线荧光光谱法探针线扫描分析“长沙窑”彩绘工艺

应用能量色散X射线荧光光谱(EDXRF)探针及线扫描技术对我国唐代和宋代的5块"长沙窑"彩瓷样品的彩绘工艺进行了研究。根据所测得的从釉到胎中着色元素铜或铁的含量变化可以看出,此5块样品的彩绘工艺均不完全属于典型的釉下彩工艺,而是属于高温釉上彩工艺。

Preparation of Macroporous TiO2 Ceramic Based on Membrane Jet-flow Emulsification

A novel method to prepare macroporous TiO2 ceramic, based on membrane emulsification was reported.To solve the paradox between the instability of nonaqueous emulsion and long emulsification time required by themembrane emulsification, a two-stage ceramic membrane jet-flow emulsification .was. proposed. Discussion wasconducted on the evolution of droplet size with time, which followed the Ostwalcl npemng theory. And a monodispersed nonaqueous emulsion with an average droplet size of 1.6μm could beprepared. Using the emulsion, as atemplate, TiO2 ceramics with an average pore size ot 1.1 μm were obtaineed. Tne material could be prospectivelyused for preparation of catalysts, adsorbents, and membranes.

Incorporating Simulated Zinc Ash by Kaolinite-and Sludge-based Ceramics:Phase Transformation and Product Leachability

Zinc is one of the hazardous metals commonly found in municipal solid waste incineration （MSWI） ash, and this study reveals the stabilization mechanisms when sintering zinc-laden ash and ceramic precursors as a waste-to-resource strategy. Using ZnO to simulate the zinc-laden ash and sintering with kaolinite and mullite ce- ramic precursors, both zinc aluminate spinel （ZnA1204） and willemite （Zn2SiO4） phases were found in the products under the tested thermal conditions. The results also indicate that kaolinite and mullite precursors exhibit different incorporation behavior, and ZnA1204 and Zn2SiO4 were found to be competitive as the Zn-hosting phases in the system. A prolonged leaching test was used to evaluate the leachability of potential product phases in the system. The concentrations of zinc in ZnO and Zn2SiO4 leachates were about two orders of magnitude higher than that in ZnA1204 leachate, indicating the preference of forming ZnA1204 for zinc stabilization. Furthermore, the alumi- num-rich sludge generated from waterworks could be beneficially used as a material resource to stabilize zinc in this study. The X-ray diffraction （XRD） pattern collected from the 1150 ~C and 3-h sintered sample shows the suc- cess of incorporating zinc into the ZnA1204 spinel structure with waterworks sludge precursor. The formation of ZnA1204 indicates a strong potential for employing aluminum- and silicon-based materials to thermally immobilize zinc and achieve the beneficial use of metal-laden MSWI ash.

Research Progress of Interfacial Chemism of High Efficiency Organic Grinding Fluid for Si_3N_4 Ceramics

Grinding is a most important machining method for Si3N4 ceramics. Utilizing interracial chemistry reaction membrane between grinding fluid and Si3N4 ceramics can reduce friction factor, soften surface layer and meanwhile improve the grinding efficiency, which is a bran-new research direction. This article, based on high efficiency grinding of Si3N4 ceramics by the way of half plasticity removal, descanted on the assistant function of interface chemistry reaction to improve the removal rate of Si3N4 ceramics in the application of organic grinding fluids represented by alcohols grinding fluid. To target action mechanism research, it applies the methods of classification, comparison and induction, and advanced test equipments to explore the effects of long, short carbochain alcohol and their water solutions acting as grinding fluids. In addition, it also discusses the effective function of three groups of organic matters such as perhalogeno hydrocarbon, cationic surfactant and tetra ethoxysilane acting as grinding fluid components from different angles, reveals their mechanisms of action, and supplies theoretical basis for the development of machining ceramic grinding fluid of high efficiency, low cost.

DIELECTRIC PROPERTIES OF ZNTIO_3 MICROWAVE CERAMICS CONSOLIDATED WITH MGTIO_3

Stabilized ZnTiO4 was prepared by doping magnesium oxide through traditional solid state reaction. The experimental results indicate that zinc titanate crystals doped with magnesium oxide grow well and the decomposition into Zn2TiO4 and TiO2 is restrained through traditional solid state reaction, By adjusting molar ratio of MgO, better properties can be obtained The dielectric properties of the ceramics doped with 30% MgO（ molar percentage） sintered at 1060℃ are as follows：the value of quality factor is greater than 20000（6.5 GHz ）, the temperature coefficient of resonance frequency is about 2 ± 10^-6 /℃,the dielectric constant ranges from 180 to 22.Besides,it is proved that heat treatment can optimize microstructure and the value of quality factor, which increases from 23833.93 to 47584.00 after 2h of heat treatment at 1040℃.

Discussion on the Understanding and Inheritance of Jingdezhen Traditional Famille Rose Decoration and Color Enamel Craftsmanship

Jingdezhen is a bright star to make ceramic products among all cities of the world. The actual inheritance of the famille rose decoration and color enamel craftsmanship as China＇s ＂intangible cultural heritage＂ is restricted not only by historical change and geographical conditions and also by how to inherit the craftsmanship. In this paper, through the literature studies, sociology investigation, market research, and comparative analysis of the traditional pastel industry in Jingdezhen, the making flows of famille rose decoration and color enamel are introduced plus the author＇s understanding of famille rose decoration and color enamel, and also the understanding and inheritance of Jingdezhen traditional famille rose decoration and color enamel craftsmanship as ＂intangible cultural heritage＂ are discussed. Therefore, theoretical basis and practice guidance are provided for famille rose decoration and color enamel craftsmanship to develop toward the cultural industry, and also a reference in theory and practice is available for the inheritance and development of the handmade ceramic products as ＂intangible cultural heritage＂.

Preparation of Alumina Abrasion-Resistant Ceramic Grinding Ball with Spent FCC Equilibrium Catalyst

The chemical composition, structure and thermal stability of the spent FCC equilibrium catalyst from an oil refinery were characterized by XRD, FT-IR, DTA-TG, BET, complete chemical analysis, SEM, and XRF. The spent FCC equilibrium catalyst, clay, barium carbonate, and talc were used as the main raw materials to prepare the alumina abrasion-resistant ceramic balls to be used in the powder grinding mill for manufacture of architecture tiles. The results showed that after proper formulation study, the spent FCC equilibrium catalyst could replace industrial alumina to prepare high performance grinding balls. Meanwhile, the various performance indices of the grinding ball could meet the quality standard for similar products, and additionally, the energy saving effect was achieved in the operation of the grinding section, resulting in a successful comprehensive utilization of solid wastes.

Standardization of Work for Setting the Tone of Ceramics

Leading Company in the field of ceramic floor and wall, has different areas of workforce development, in this research, we will focus the tone adjustment area that is committed to the quality of the final product because this depends on the tone and color appearance tile. Since there is a need to standardize the procedure of work in the area pitch adjustment so that the head of the area and adjusters have precise specifications when developing the activities. To standardize the procedure proposed and implemented tools and formats to help in practical ways to the adjuster also raised the activities of the head of the area and the setting of tone and adjusters.

清宫雍正粉彩瓷

粉彩是我国瓷器釉上彩绘的一种独特装饰方法，也是景德镇传统彩绘瓷品种之一，因彩料中含有玻璃白粉而得名。这种“玻璃白”粉实际上是一种含氧化砷的玻璃白，由于砷的乳蚀作用，使所有颜色都“粉化”成不同深浅浓淡的色调。一个色可以分出多种色阶，描画纹饰可以更加细致入微。

图片新闻

大自然赋予老虎的实在太厚，以致它身体上的一切都精美绝伦，而其仪态又八面生风。

Preparation and characterization of dense lanthanum-doped bismuth titanate ceramics

In this work, we present an effective way to increase the density of lanthanum-doped bismuth titanate ceramics （Bi4_xLaxTi3Oa2; BLT）. Dense BLT ceramics with formula Bi4LaxTi3012 （when x = 0.25, 0.5, 0.75, 1.0） are prepared by using nanocrystalline powders fabricated by the sol-gel method and high-pressure technique. The thermal decomposition and phase transformation process of the gel precursors are studied by using DTA, infrared spectroscopy （IRS） and X-ray diffraction （XRD）. The micro- structures of BLT ceramics are investigated by using transmission electron microscopy （TEM） and scanning electron microscopy （SEM）. The experimental results indicate that the phase compositions of all samples with various La substitutes at 900℃possess the layer-structure of Bi4Ti3012 （BTO）. The green pellets are pressed under 2.5, 3.0, 3.5 and 4.0 GPa, separately. It is found that the density of BLT ceramics is significantly increased due to the decreasing of porosity in the green compacts by the high-pressure process. The samples are sintered at temperatures between 900 and 1100℃and it is found that the optimum sin- tering temperature is 1100℃. Dense BLT ceramics with 90% of their theoretic density have been achieved from the sample prepared at a sintering temperature of 1100℃ for 1.5 h.

Effect of TiO_2 content on the microwave dielectric properties of BaO-ZnO-TiO_2 ceramics

In this paper,the BaO-0.6ZnO-xTiO2 ceramics with x=2.5-2.8 have been prepared by the conventional solid-state ceramic route for the purpose of investigating the effect of TiO2 content on the microwave dielectric properties.The XRD results showed that the main crystal phase in the sintered ceramics was Ba4ZnTi11O27 and that the additional phases:Ba2ZnTi5O13 and BaZn2.03Ti3.93O10.89 were presented,depending on the TiO2 contents.The SEM photographs of the samples sintered at 1200℃ for 2 h showed a high compact microstructure.Because the phase composition of ceramics samples was changed with TiO2 content,the dielectric constant(εr),the quality factor values(Q×f) and the temperature coefficient of resonant frequency(τf) were first increased,continuously came up to a peak value,and then let up.It was lucky to find that the sample with composition BaO-0.6ZnO-2.7TiO2 had both the maximum dielectric constant εr=36.1 and the maximum Q×f value of 29320 GHz,and more importantly,it had an acceptable temperature coefficient of resonant frequency τf=10.45 ppm/℃.

Properties and Application of Ceramic BaCe0.8Ho0.2O3-α

Ceramic BaCe0.8Ho0.2O3-α with orthorhombic perovskite structure was prepared by conventional solid state reaction, and its conductivity and ionic transport number were measured by ac impedance spectroscopy and gas concentration cell methods in the temperature range of 600-1000 ℃ in wet hydrogen and wet air, respectively. Using the ceramics as solid electrolyte and porous platinum as electrodes, the hydrogen-air fuel cell was constructed, and the cell performance at temperature from 600-1000 ℃ was examined. The results indicate that the specimen was a pure protonic conductor with the protonic transport number of 1 at temperature from 600-900 ℃ in wet hydrogen, a mixed conductor of proton and electron with the protonic transport number of 0.99 at 1000 ℃. The electronic conduction could be neglected in this case, thus the total conductivity in wet hydrogen was approximately regarded as protonic conductivity. In wet air, the specimen was a mixed conductor of proton, oxide ion and electron hole. The protonic transport numbers were 0.01-0.09, and the oxide-ionic transport numbers were 0.27-0.32. The oxide ionic conductivity was increased with the increase of temperature, but the protonic conductivity displayed a maximum at 900 ℃, due to the combined increase in mobility and depletion of the carriers. The fuel cell could work stably. At 1000 ℃, the maximum short-circuit current density and power output density were 346 mA/cm^2 and 80 mW/cm^2, respectively.

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