Shu Shili, Yang Hongyu, Tong Cunzhu, Qiu Feng
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Jiangsu Provincial Key Laboratory of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.
Materials (Basel). 2016 Jul 29;9(8):642. doi: 10.3390/ma9080642.
Metal matrix composites reinforced with ceramic particles have become the most attractive material in the research and development of new materials for thermal management applications. In this work, 40-60 vol. % TiC-TiB₂/Al composites were successfully fabricated by the method of combustion synthesis and hot press consolidation in an Al-Ti-B₄C system. The effect of the TiC-TiB₂ content on the microstructure and compression properties of the composites was investigated. Moreover, the abrasive wear behavior and thermo-physics properties of the TiC-TiB₂/Al composite were studied and compared with the TiC/Al composite. The compression properties, abrasive wear behavior and thermo-physics properties of the TiC-TiB₂/Al composite are all better than those of the TiC/Al composite, which confirms that the TiC-TiB₂/Al composite is more appropriate for application as a heat sink.
陶瓷颗粒增强金属基复合材料已成为热管理应用新材料研发中最具吸引力的材料。在本工作中，通过在Al-Ti-B₄C体系中采用燃烧合成和热压固结法成功制备了体积分数为40-60%的TiC-TiB₂/Al复合材料。研究了TiC-TiB₂含量对复合材料微观结构和压缩性能的影响。此外，还研究了TiC-TiB₂/Al复合材料的磨料磨损行为和热物理性能，并与TiC/Al复合材料进行了比较。TiC-TiB₂/Al复合材料的压缩性能、磨料磨损行为和热物理性能均优于TiC/Al复合材料，这证实了TiC-TiB₂/Al复合材料更适合用作散热器。
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