| MoSi_2/ZrB_2基超高温陶瓷SPS制备研究 |
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| 引用本文： | 姜子晗,汪涛. MoSi_2/ZrB_2基超高温陶瓷SPS制备研究[J]. 硬质合金, 2011, 28(1): 1-7. DOI: 10.3969/j.issn.1003-7292.2011.01.001 |
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| 作者姓名： | 姜子晗 汪涛 |
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| 作者单位： | 南京航空航天大学,材料科学与技术学院,江苏,南京,211106 |
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| 摘 要： | ZrB2具有良好的抗氧化、抗热震和抗烧蚀性能。采用放电等离子体烧结(SPS)工艺,添加体积分数为10%~20%的MoSi2烧结助剂,选取不同的烧结参数,制备出超高温陶瓷成品。经测试,ZrB2-15%MoSi2(体积分数)体系的陶瓷致密度可达99.88%,维氏硬度可达1 612,通过SEM分析,该陶瓷具有典型的核(ZrB2)-壳(MoSi2、MoB)结构,可以作为高超声速飞行器热防护用陶瓷材料的候选方案。
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| 关 键 词： | ZrB2 放电等离子体烧结 超高温陶瓷 |
MoSi2/ZrB2-based ultra-high temperature ceramics prepared by spark plasma sintering |
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| Jiang Zihan,Wang Tao. MoSi2/ZrB2-based ultra-high temperature ceramics prepared by spark plasma sintering[J]. Cemented Carbide, 2011, 28(1): 1-7. DOI: 10.3969/j.issn.1003-7292.2011.01.001 |
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| Authors: | Jiang Zihan Wang Tao |
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| Affiliation: | Jiang Zihan Wang Tao(Nanjing university of aeronautics and astronautics,Faculty of materials science and technology,Nanjing Jiangsu 211106,China) |
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| Abstract: | ZrB2 has good performance of oxidation resistance,thermal shock resistance and ablation resistance.Using 10%~20% volume ratio of MoSi2 sintering additives and different sintering parameters,ZrB2-based ultra-high temperature ceramics were prepared by spark plasma sintering(SPS) technique.The relative density and hardness of the ZrB2-based ceramics with 15vol.% of MoSi2 are 99.88% and 1 612 respectively.SEM observations show that this ceramic has typical core(ZrB2)-shell(MoSi2 and MoB) structure.This ceramics... |
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| Keywords: | ZrB2 |
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