| 放电等离子烧结法制备TiB陶瓷刀具材料的显微结构和力学性能 |
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| 引用本文： | 神祥博,张朝晖,王富耻,李树奎. 放电等离子烧结法制备TiB陶瓷刀具材料的显微结构和力学性能[J]. 模具制造, 2010, 10(12): 92-94 |
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| 作者姓名： | 神祥博 张朝晖 王富耻 李树奎 |
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| 作者单位： | 北京理工大学材料学院,北京100081 |
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| 基金项目： | 国防科技预研基金项目资助 |
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| 摘 要： | 通过放电等离子烧结方法,在烧结温度分别为1,150℃、1,250℃、1,350℃、1,450℃时制备了TiB陶瓷刀具材料,并对其进行了力学性能测试。结果表明,当烧结温度为1,450℃时,材料的显微硬度和断裂韧性都达到最高。利用XRD和SEM分析了材料的微观组织,发现当烧结温度为1,450℃时,TiB陶瓷材料中几乎没有孔洞,达到了很高的致密度。
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| 关 键 词： | TiB陶瓷 显微结构 力学性能 烧结温度 |
Microstructure and Mechanical Properties of TiB Ceramic Fabricated By Spark Plasma Sintering |
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| Abstract: | The TiB ceramic were fabricated by spark plasma sintering using Ti and TiB2 powders. Mechanical properties of the ceramic sintered at different sintering temperatures （1, 150℃ 1,250℃, 1,350℃ , 1,450℃ ） were measured. The experiment results indicate that the Vickers hardness and fracture toughness of the TiB ceramic increase with increase of the sintering temperature. Microstructures of the TiB ceramics were investigated by XRD and SEM analysis. It shows that the TiB ceramic sintered at 1450℃ have a high relative density of 98.161%. |
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| Keywords: | TiB ceramic microstructure mechanical properties sintering temperature |
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