材料科学与工程2000，Vol.18Issue(4)：45-48,4.
Ca1-xBaxZr4(PO4)6磷酸盐陶瓷材料的热膨胀特性
Thermal Expansion Properties of Ca1-xBaxZr4(PO4)6 Phosphate Ceramic Materials
摘要
Abstract
Ca1-xBaxZr4(PO4)6(0≤X≤1. 0)system which belongs to a new large family of low thermal expansion materials know as NZP. It was found that CaZr4 (PO4)6(X＝0) and BaZr4(PO4)6 (X= 1) had opposite anisotropies in their respective axial thermal expansion,therefore,the near-zero thermal expansion can be obtained by selecting X value. Ca1-xBaxZr4 (PO4)6 was synthesized by the coprecipitation method. When X ＝0 and X = 0.25 ,the bulk thermal expansion coefficient was－0. 86×10-61/℃ and 2.7×10-6/℃ respectively. When X= 0. 75 ,the thermal expansion anisotropy is much smaller than any others. In order to getting low thermal expansion anisotropy and low bulk thermal expansion coefficient for Ca1-xBaxZr4 (PO4)6 phosphate ceramic materials ,X should be between 0.6 and 0.9 ,and must reduce the growth of grains by control ling sinter conditions.关键词
Ca1-xBaxZr4(PO4)6(0≤X≤1．0)/低热膨胀/热膨胀异向性/热膨胀系数Key words
Ca1-xBaxZr4(PO4)6(0≤X≤1. 0)/low thermal expansion/thermal expansion anisotropy/ bulk thermal expansion coefficient分类
化学化工引用本文复制引用
廖学品,祝琳华,杨劲,郎小川..Ca1-xBaxZr4(PO4)6磷酸盐陶瓷材料的热膨胀特性[J].材料科学与工程,2000,18(4):45-48,4.基金项目
云南省科委青年基金 （）
