| 新型三元硼化物基金属陶瓷的研究 |
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| 引用本文： | 王永国,李兆前,张荻.新型三元硼化物基金属陶瓷的研究[J].无机材料学报,2003,18(6):1217-1221. |
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| 作者姓名： | 王永国 李兆前 张荻 |
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| 作者单位： | 1. 上海交通大学金属基复合材料国家重点实验室, 上海 200030; 2. 山东大学机械工程学院, 济南 250061 |
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| 基金项目： | 国家自然科学基金(59975054) |
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| 摘 要： | 用反应液相烧结法在1280℃下真空烧结成功制备出三元硼化物基金属陶瓷(TBBC),其硬度可达92.4HRA,密度为8.2g/cm3,热膨胀系数为8.0×10-6/K.用扫描电镜、X射线衍射和能谱对其微观结构进行了分析,结果表明:此种金属陶瓷是由三元硼化物基硬质相(MoFeCrNi)3B2和铁基粘结相α-Fe组成,硬质相和铁基粘结相分散均匀,硬质相占有相当大的比重,约占体积比的80％.磨损实验表明此种金属陶瓷具有良好的耐磨性.
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| 关 键 词： | 三元硼化物 金属陶瓷 微观结构 |
| 文章编号： | 1000-324X(2003)06-1217-05 |
| 收稿时间： | 2002-10-10 |
| 修稿时间： | 2002年10月10 |
Research on Ternary Boride Based Cermet |
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| WANG Yong-Guo,LI Zhao-Qian,ZHANG Di.Research on Ternary Boride Based Cermet[J].Journal of Inorganic Materials,2003,18(6):1217-1221. |
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| Authors: | WANG Yong-Guo LI Zhao-Qian ZHANG Di |
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| Affiliation: | 1.State Key Laboratory of Metal Matrix Composites of Shanghai Jiaotong University; Shanghai 200030; China; 2.Mechanical Engineering Department of Shandong University; Jinan 250061; China |
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| Abstract: | Ternary boride based cermet (TBBC) was produced successfully by using the reaction liquid sintering method under 1280℃ and vacuum. The hardness, density and coefficient of thermal expansion of TBBC are 92.4HRA, 8.2g/cm3 and 8.0×10-6/K respectively. The microstructure of TBBC was studied by using SEM, XRD and EDS. Results show that the main composition of TBBC is ternary-boride-based hard phase and ferrous-base binder phase. TBBC has excellent wear resistance performance. |
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| Keywords: | ternary boride cermet microstructure |
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