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| 论文编号: |
122214O120110115 |
| 第一作者所在部门: |
705组 |
| 中文论文题目: |
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| 英文论文题目: |
Graphite fiber/copper composites with near-zero thermal expansion
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| 论文题目英文: |
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| 作者: |
陶则超
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| 论文出处: |
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| 刊物名称: |
Materials & Design
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| 年: |
2011
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| 卷: |
33 |
| 期: |
1 |
| 页: |
372 |
| 联系作者: |
陶则超 |
| 收录类别: |
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| 影响因子: |
1.696
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| 摘要: |
Mesophase pitch-based graphite fibers (MPGF) were coated with copper by electrodeposition. Subsequently, unidirectional MPGF/Cu composites with near-zero thermal expansion were fabricated by hot-pressing using copper-coated fibers as raw materials. The composites had coefficient of thermal expansion (CTE) of 0.027 × 10？6/K in the longitudinal direction which was much lower than that estimated by Sharpery’s model. Detailed thermal expansion behavior of the composites in the temperature range of 298–773 K was also studied. The endothermal/exothermal of the composites during heating was analyzed with differential scanning calorimetric (DSC). According to the results, it was considered that the zero thermal expansion behavior is related to the creep of copper matrix. The composites had thermal conductivity of 221.9 W/m K in the longitudinal direction and 42.30 W/m K in the transverse direction. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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关闭窗口 |
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