摘要
采用MnO2-TiO2-CaO-La2O3复相添加剂作为氧化铝陶瓷的烧结助剂,研究了MnO2添加量对95氧化铝陶瓷烧结性能、力学性能和微观结构的影响。结果表明:当配方中MnO2含量为3.0%时,在1550℃烧结温度下制得的氧化铝陶瓷的综合性能最佳,烧结试样的体积密度达到3.76g.cm-3,试样的抗弯强度和洛氏硬度(HRA)分别达到355.22MPa和84.3。
The ZrO2-tabular alumina-Al2TiO5 composite material samples was obtained by solid state reaction and high temperature sintering with α-Al2O3 powder,tabular alumina and TiO2 as the main raw materials and adding different amounts of ZrO2.The effect of the ZrO2 content to sintering shrinkage,apparent porosity,strength of the composite materials was analyzed.The results show that： with the increase of ZrO2 additions,the density and shrinkage increased markedly.A high density and high strength of ZrO2-tabular alumina-Al2TiO5 composite material can be prepared with the content 4% of ZrO2,its apparent porosity was 9.31%,modulus of rupture of 25.6MPa,compression strength of 225MPa.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2012年第2期11-14,共4页
China Ceramics
基金
湖南人文科技学院青年基金资助项目(2011QN01)
