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CaO－SiO_2系统溶胶凝胶过程及其机理 被引量：1

Investigation on the Gelation Process of the CaO-SiO_2 System and its Mechanism
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摘要 以正硅酸乙酯、醋酸钙等为原料，采用溶胶凝胶工艺制备了ＣａＯ－ＳｉＯ_２系统湿凝胶。研究了其溶胶凝胶化过程中溶胶粘度变化及溶胶粒子的生长过程，以及湿凝胶在干燥过程中的析晶现象，并对其机理进行了探讨。 In the present paper the wet gel of CaO-SiO_2 system was prepared by the solgel process using T EOS and Calcium acetate as raw material.The viscosity variation and growth process of sol particles in CaO-SiO_2 system were investigated in details.By means of XRD and SEM,the crystallization of wet gel during drying was also investigated and the mechanism of crystallization was discussed.
作者 袁建君 刘智恩 方琪 徐晓晖
机构地区 华东理工大学无机材料系
出处 《华东理工大学学报（自然科学版）》 CAS CSCD 1996年第3期316-321,共6页 Journal of East China University of Science and Technology
关键词 溶胶-凝胶工艺 析晶 硅灰石 氧化钙 二氧化硅 sol-gel process mechanism CaO-SiO_2 System crystallization wallastonite
分类号 TQ174.758 [化学工程—陶瓷工业]
  • 相关文献

参考文献2

  • 1杨南如，硅酸盐通报，1992年，2期，56页
  • 2潘兆橹，应用矿物学，1985年

同被引文献14

  • 1Sreekanth Chakradhar R P,Nagabhushana B M,Chandrappa G T,Ramesh K P,Rao J L.Solution combustion derived nanocrystalline macroporous wollastonite ceramics.Materials Chemistry and Physics,2006,95 (1):169-175
  • 2Roy R.Ceramics by the solution-sol-gel route.Science,1987,238 (4834):1664-1669
  • 3Menchi A M,Scian A N.Mechanism of cordierite formation obtained by the sol-gel technique.Materials Letters,2005,59 (21):2664-2667
  • 4Li K,Li J H,Chan H L W.Fabrication of Sm-and Mndoped lead titanate ceramic powder and ceramics by sol-gel methods.Materials Chemistry and Physics,2004,86(1):83-87
  • 5Qian J M,Wang J P,Qiao G J,Jin Z H.Preparation of porous SiC ceramic with a woodlike microstructure by sol-gel and carbothermal reduction processing.Journal of the European Ceramic Society,2004,24 (10/11):3251-3259
  • 6Fang Q Q,Cheng H,Huang K,Wang J Z,Li R,Jiao Y F.Doping effect on crystal structure and magnetic properties of chromium-substituted strontium hexaferrite nanoparticles.Journal of Magnetism and Magnetic Materials,2005,294 (3):281-286
  • 7Yang H,Ding Z S,Jiang Z H,Xu X P.Sol-gel process kinetics for Si (OEt)4.Journal of Non-Crystalline Solids,1989,112 (1/2/3):449-453
  • 8Artaki I,Sinha S,Irwin A D,Jonas J.Si NMR study of the initial stage of the sol-gel process under high pressure.Journal of Non-Crystalline Solids,1985,72 (2/3):391-402
  • 9Yoldas B E.Effect of molecular separation on the hydrolytic polycondensation of Si (OC2H5)4.Journal of NonCrystalline Solids,1985,82 (1/2/3):11-23
  • 10Pereira J C G,Catlow C R,Price G D.Molecular dynamic simulation of methanolic and ethanolic silica-based sol-gel solutions at ambient temperature and pressure.Journal of Physical Chemistry A,2002,106 (1):130-148

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华东理工大学学报（自然科学版）
1996年 第3期

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