| TiB2与BN复相陶瓷的渗流模型 |
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| 引用本文： | 王玉成,傅正义.TiB2与BN复相陶瓷的渗流模型[J].复合材料学报,2002,19(1):50-53. |
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| 作者姓名： | 王玉成 傅正义 |
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| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 国家自然科学基金项目(59872024,59925207) |
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| 摘 要： | 试验结果证实,TiB2与BN复相陶瓷的导电性能符合渗流理论,原料粉粒度配比下,其渗流阀值为Vc%=22.9%;原料粉粒度比的改变将改变渗流阀值,从而改变各配比下的电阻率值;TiB2与BN在SPS系统中快速烧结,晶粒的尺度比与原料粉的粒度比基本保持一致。
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| 关 键 词： | TiB2 BN 复相陶瓷 渗流 导电性 |
| 文章编号： | 1000-3851(2002)01-0050-04 |
| 收稿时间： | 2001-03-30 |
| 修稿时间： | 2001年3月30日 |
PERCOLATION MODEL OF TiB2 AND BN MULTIPHASE CERAMICS |
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| WNAG Yu-cheng,FU Zheng-yi.PERCOLATION MODEL OF TiB2 AND BN MULTIPHASE CERAMICS[J].Acta Materiae Compositae Sinica,2002,19(1):50-53. |
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| Authors: | WNAG Yu-cheng FU Zheng-yi |
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| Affiliation: | State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | It was found that the experimental resultfor electric conductivity of Ti B2 - BN multiphase ceramics is consistentwith the percolation model.The criticalpercentcontentof Ti B2 is2 2 .9% when the raw material granularity scale is related to thispaper.The criticalpercentcontentwillchange with grain sizes,then results in the change in electric resistivity.The ratiosof grain sizesof Ti B2 to BN af- ter SPS sintering are in accord with those of the raw materials. |
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| Keywords: | Ti B2 BN composite ceramic percolation electric conductivit |
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