磷酸钙/氧化锆复合陶瓷的微观结构及力学性能

磷酸钙/氧化锆复合陶瓷的微观结构及力学性能

赵华¹, 李文旭¹,², 于德珍¹, 王福平²

1. 哈尔滨工业大学材料科学与工程学院, 哈尔滨 150001; 2. 哈尔滨工业大学理学院, 哈尔滨 150001

收稿日期:2005-11-03 修回日期:1900-01-01 出版日期:2006-07-26 发布日期:2006-07-26
通讯作者: 赵华

Microstructure and Mechanical Properties of Calcium Phosphate\|zirconia Composite Ceramics

ZHAO Hua¹, LI Wen-xu¹,², YU De-zhen¹, WANG Fu-ping²

1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 2. School of Science, Harbin Institute of Technology, Harbin 150001, China

Received:2005-11-03 Revised:1900-01-01 Online:2006-07-26 Published:2006-07-26
Contact: ZHAO Hua

摘要/Abstract

摘要： 利用冷等静压成形, 经不同的温度烧结制备了不同比例的磷酸钙与钇稳定四方氧化锆系列复合陶瓷, XRD、 SEM及力学性能测试结果表明, 随磷酸钙含量的增加, 陶瓷的相对密度降低, 晶粒尺寸变大, 四方氧化锆(t-ZrO2)减少, 单斜氧化锆(m-ZrO2)增加, 导致力学性能下降; 1 350 ℃烧结含磷酸钙质量分数为12％~15％的样品及1 400 ℃烧结含磷酸钙质量分数为15％的样品以t-ZrO2为主, 并含有少量m-ZrO2和TCP(Ca3(PO4)2), 其相对密度大于95％, 综合力学性能评价分析表明, 它可用于CAD/CAM加工口腔修复材料. 

关键词: 氧化锆, 磷酸钙, 可加工

Abstract: Yttria stabilized zirconia ceramics doped with different contents of calcium phosphate were prepared by treatments including ball-milling, cold isostatic pressing and sintering in air at 1 300 ℃, 1 350 ℃ and 1 400 ℃ for 2 h. XRD, SEM and measurements of some mechanical properties on the ceramics were performed. The results show that the composites with 12％ to 15％ calcium phosphate sintered at 1 350 ℃ and with 15% calcium phosphate sintered at 1 400 ℃ mainly remained tetragonal zirconia (t-ZrO2) phase and a few monoclinic zirconia (m-ZrO2) phase and TCP. The relative densities exceed 95％ of the theoretical values. Thus these materials are hopeful of potential application as machinable ceramics in CAD/CAM.

Key words: zirconia, calcium phosphate, machinability

中图分类号:

TQ174

赵华, 李文旭,, 于德珍, 王福平. 磷酸钙/氧化锆复合陶瓷的微观结构及力学性能[J]. J4, 2006, 44(04): 641-644.

ZHAO Hua, LI Wen-xu,, YU De-zhen, WANG Fu-ping. Microstructure and Mechanical Properties of Calcium Phosphate\|zirconia Composite Ceramics[J]. J4, 2006, 44(04): 641-644.