Strengthen of porous Al2O3 ceramics by adding nanoparticle ZrO2 addition
In this paper, Nanoslurry-ZrO2 were added into alumina powders to improve the bending strength of macroporous Al2O3 Ceramic sintered at 1550℃, 1600℃, 1650℃ corresponding for3h each in air, respectively. The results show that the bending strength of porous alumina ceramic was simultaneously greatly influenced by various ZrO2 contents. When ZrO2 content is 2wt％, the maximum bending strength value of sample heated at 1650℃ was observed, which achieves to 50 MPa. And the maximum bending strength value of any sample also exists at 1650℃. By SEM analysis, many fine ZrO2 particles with high activity surface form a neck bonding which is beneficial to the improvements of bending strength.
Macroporous ceramic Bending strength Wet-ball-milling Nanoslurry ZrO2
Gaiye Li Yiqun Fan
College of Materials Science and Engineering, Hohai University, Xikang Road 1, Nanjing 210098, China College of Chemistry & Chemical Engineering , Nanjing University Science & Technology, New MoFan Roa
国际会议
青岛
英文
239-242
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）