Al2O3-Reinforced Feldspar Ceramic Composite Material

摘要：

This paper focused on the properties of Al2O3rainforced feldspar dental ceramic. The results indicated that the introduced Al2O3 could elevate the density of the sintered feldspar ceramic,where the relative density reached 97.g％ under the conditions of 20 Wt％ Al2O3 additive and 1200℃. On the other hand,Al2O3 additive could remarkably promote the machinability and the ultimate bending strength of the modified feldspar ceramic. The grinding efficiency increased by 260.1％ if the content of Al2O3 additive was 5 wt％,while the ultimate bending strength enhanced under increasing Al2O3 additive content. The microstructure analysis revealed a composition of α-Al2O3 as the dominant phase and crystalline calcium aluminum silicate hydrate as the minor phase in the Al2O3-rainforced feldspar ceramic. The feldspar represented totally as glass phase,wherein the Al2O3 grains showed a homogenized dispersion.

关键词： dental ceramic Al2O3 machinability

作者: Zhang Guanglei Qin Guoqiang Gao Hui Shao Changtao

作者单位: School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 390-393

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）