| 碳化硅-二硼化钛复合陶瓷性能研究 |
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| 引用本文： | 贾雪荭,陈宇红,蒋亮,陈百义,陈斌. 碳化硅-二硼化钛复合陶瓷性能研究[J]. 宁夏工程技术, 2010, 9(1): 48-50 |
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| 作者姓名： | 贾雪荭 陈宇红 蒋亮 陈百义 陈斌 |
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| 作者单位： | 1. 宁夏机械研究院(有限责任公司),宁夏银川,750002
2. 北方民族大学,材料科学与工程学院,宁夏银川,750021 |
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| 基金项目： | 省部共建北方民族大学粉体材料及特种陶瓷重点实验室资助项目(0603) |
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| 摘 要： | 采用无压烧结，利用小分子的B、C作为烧结助剂在2180℃获得了相对密度为96％的SiC—TiB2复合材料，XRD分析显示在烧结过程中无新相产生，从烧结体的显微形貌可以看出，在烧结过程中有包晶现象，SiC颗粒有明显长大趋势．大的晶粒存在使烧结体的力学性能降低，主要表现为抗弯强度和断裂韧性不高，分别只有158．6MPa和2．85MPa·m^1/2．
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| 关 键 词： | 碳化硅-二硼化钛复合材料 无压烧结 显微结构 力学性能 |
Research on pressureless sintering SiC-TiB2 ceramic composite |
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| JIA Xuehong,CHEN Yuhong,JIANG Liang,CHEN Baiyi,CHEN Bin. Research on pressureless sintering SiC-TiB2 ceramic composite[J]. Ningxia Engineering Technology, 2010, 9(1): 48-50 |
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| Authors: | JIA Xuehong CHEN Yuhong JIANG Liang CHEN Baiyi CHEN Bin |
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| Affiliation: | 1.Ningxia Mechnich Insitute/a>;Yinchuan 750002/a>;China/a>;2.School of MSE North University for Ethnic/a>;Yinchuan 750021/a>;China |
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| Abstract: | SiC-TiB2 composite was prepared by boron （B） and carbon （C） as sintering additive via presureless sintering in 2 180℃ which the density of sintered sample was achieved 96%. The XRD pattern of sintered sample showed that no new phase had been produced, but SEM picture showed that SiC particle enlarged during sintering. These large particles made the mechanic properties of sintered lower, especially bending strength and fracture toughness which only were 158.6 MPa and 2.85 MPa＇m^1/2 respectively. |
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| Keywords: | SiC-TiB2 composite pressurelessly sintering microstructure mechanic properties |
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