| TiB_2含量对AlN-TiB_2复合材料导热性能的影响 |
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| 引用本文： | 程卫华.TiB_2含量对AlN-TiB_2复合材料导热性能的影响[J].科技信息,2011(19):I0081-I0082. |
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| 作者姓名： | 程卫华 |
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| 作者单位： | 盐城纺织职业技术学院化学工程系,江苏盐城224005 |
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| 摘 要： | 采用热压烧结工艺制备了AlN-TiB2复合材料。通过激光导热仪,研究了TiB2含量对材料导热性能的影响。结果表明：随着TiB2含量的增加,复合材料的热导率逐渐下降,当TiB2含量增至50wt%时,热导率由102.9W.m-1.K-1下降到36.6W.m-1.K-1,并对A1N-TiB2的相组成和显微结构进行了观察分析。
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| 关 键 词： | 氮化铝 硼化钛 导热性能 热压烧结 |
Effect of TiB2 Content on the Thermal Conductivity of A1N-TiB2 Composites |
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| CHENG Wei-hua.Effect of TiB2 Content on the Thermal Conductivity of A1N-TiB2 Composites[J].Science,2011(19):I0081-I0082. |
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| Authors: | CHENG Wei-hua |
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| Institution: | CHENG Wei-hua (Department of Chemical Engineering, Yancheng Textile Vocational Technology College, Yancheng Jiangsu,224005) |
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| Abstract: | A1N-TiB2 composites with microwave attenuation characteristics were prepared by hot pressed method. The effect of the content of TiB2 and temperature on the composites was investigated by XRD,SEM and laser thermal conductivity apparatus. The results show that with increasing of TiB2 content, thermal conductivity rate decrease gradually, when the w（TiB2） is 50wt%, thermal conductivity rate decrease from 102.9 W-m^-1·K^-1 to 36.6 W·m^-1·K^-1. Besides, when the w （TiB2） is 10wt%, with increasing of temperature, thermal conductivity rate increase gradually. The phase composition and mierostrueture were also studied. |
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| Keywords: | Aluminum nitride Titanium boride Thermal conductivity Hot pressed sintering |
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