热压烧结法制备氧化铝/透辉石陶瓷复合材料
Fabrication of Alumina/Diopside Composites by Hot-pressing Sintering Process
摘 要
采用热压烧结法制备了氧化铝/透辉石复相陶瓷材料,分析了复合材料的微观结构,测试了复合材料的断裂韧度、硬度和抗弯强度与透辉石颗粒含量的对应关系.结果表明：在28 MPa、1 450 ℃×30 min条件下热压烧结制备的复相陶瓷材料,其抗弯强度、断裂韧度均有明显提高,最高达到442.5 MPa和4.76 MPa·m1/2.
透辉石
增韧补强
alumina
diopside
reinforcement and toughness
Abstract
Al2O3/diopside composites were fabricated by hot-pressing sintering process.Microstructure of the composites was analysed and mechanical properties such as fracture toughness,hardness and bending strength of the composites were tested.The bending strength and fracture toughness of alumina matrix ceramic composites sintered at 1 450 ℃,under 28 MPa for 30 min,are significantly improved and reache their maximums value of 4425 MPa and 4.76 MPa·m1/2,respectively.
中图分类号 TQ174
所属栏目
基金项目 山东省优秀中青年科学家科研奖励基金资助项目(2005BS04008)
收稿日期 2005/12/22
修改稿日期 2006/3/30
网络出版日期
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备注张希华(1965-),男,山东平原人,副研究员,博士后.
引用该论文: ZHANG Xi-hua,LIU Chang-xia,LI Mu-sen,ZHANG Jian-hua. Fabrication of Alumina/Diopside Composites by Hot-pressing Sintering Process[J]. Materials for mechancial engineering, 2007, 31(1): 38～40
张希华,刘长霞,李木森,张建华. 热压烧结法制备氧化铝/透辉石陶瓷复合材料[J]. 机械工程材料, 2007, 31(1): 38～40
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参考文献
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【8】Sathiyakumar M,Gnanam F D.Role of wollastonite additive on density,microstructure and mechanical properties of alumina[J].Ceramics International,2003,29(8):869-873.
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