| Al2O3/TiB2/AlN/TiN复合陶瓷材料的力学性能及显微结构 |
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| 引用本文： | 刘长霞,张建华,孙军龙,张希华.Al2O3/TiB2/AlN/TiN复合陶瓷材料的力学性能及显微结构[J].人工晶体学报,2006,35(4):830-834. |
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| 作者姓名： | 刘长霞 张建华 孙军龙 张希华 |
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| 作者单位： | 山东大学机械工程学院,济南,250061;山东大学材料科学与工程学院,济南,250061 |
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| 基金项目： | 教育部科学技术研究重点项目(No.03101)，山东省杰出中青年科学家奖励基金(No.03BS103) |
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| 摘 要： | 将金属Al、Al3Ti和TiB2以AlTiB中间合金的形式引入Al2O3基体材料中,采用热压原位反应生成法制备了Al2O3/TiB2/AlN/TiN复合陶瓷材料.复合材料在烧结过程处于过渡液相烧结,并有新相AlN和TiN生成;对热压烧结后材料的硬度、断裂韧性和抗弯强度进行了测试和分析;分析了复合材料力学性能随AlTiB体积百分含量的变化规律;探讨了复合材料断面断裂方式的变化对其力学性能的影响;并对AlTiB中间合金的细化特性进行了分析.
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| 关 键 词： | 氧化铝 AlTiB中间合金 复合陶瓷 细化特性 |
| 文章编号： | 1000-985X（2006）04-0830-05 |
| 收稿时间： | 12 12 2005 12:00AM |
| 修稿时间： | 2005-12-12 |
Mechanical Properties and Microstructure of Al2O3/TiB2/AlN/TiN Composite Ceramic Materials |
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| LIU Chang-xia,ZHANG Jian-hua,SUN Jun-long,ZHANG Xi-hua.Mechanical Properties and Microstructure of Al2O3/TiB2/AlN/TiN Composite Ceramic Materials[J].Journal of Synthetic Crystals,2006,35(4):830-834. |
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| Authors: | LIU Chang-xia ZHANG Jian-hua SUN Jun-long ZHANG Xi-hua |
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| Institution: | 1. School of Mechanical Engineering, Shandong University, Jinan 250061, China; 2. College of Materials Science and Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | In the present work,Al,Al_3Ti and TiB_2 are incorporated into alumina matrix ceramic materials in the form of AlTiB master alloys.Composite of Al_2O_3/TiB_2/AlN/TiN are fabricated by the technology of transitory liquid phase sintering,during which new phases of AlN and TiN are respectively produced by the chemical reactions taking place among Al,Ti and N_2(the protective atmosphere).The hardness,the fracture toughness and the bending strength of the composites are tested.Meanwhile,the relations of volume content of AlTiB master alloys and mechanical properties of alumina matrix ceramic materials are analyzed.The effects of fracture mechanism on the mechanical properties of the composites are researched together with the refining performances of AlTiB master alloys. |
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| Keywords: | Alumina AlTiB master alloys composite ceramic refining performances |
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