Manufacturing Process of Carbon-Alumina Short Fiber Hybrid Reinforced Aluminum Matrix Composites by Low Pressure Casting
Manufacturing Process of Carbon-Alumina Short Fiber Hybrid Reinforced Aluminum Matrix Composites by Low Pressure Casting
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DOI：
10.2320/matertrans.m2017075
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发表时间：
2017-01-01
影响因子：
1.2
通讯作者：
Sasaki, Gen
中科院分区：
文献类型：
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作者：
Choi, Yongbum;Kataoka, Yoshiki;Sasaki, Gen
本研究采用低压铸造法优化制备了碳短纤维和氧化铝短纤维混杂增强复合材料。复合材料中纤维的总分数为10体积%，具有等份的碳短纤维和氧化铝短纤维（即，5vol %）。为了与混杂复合材料进行比较，两种复合材料分别用10体积%的碳短纤维和氧化铝短纤维增强。所有的复合材料都是使用低压铸造工艺通过将熔融Al（Al070）渗透到预成型件中来制造的。两种类型的短纤维随机分布在Al基体中，低压铸造方法实现了致密的混杂复合材料（相对密度超过98%）。研究了复合材料的硬度和导热性能。
In this study, hybrid composites reinforced with Carbon short fibers and alumina short fibers were optimized using low-pressure casting. The total fraction of fibers in the composite was 10 vol%, with equal parts of Carbon short fibers and alumina short fibers (i.e., 5 vol% each). For comparison with the hybrid composites, two composites were separately reinforced with 10 vol% each of the Carbon short fibers and alumina short fibers. All the composites were fabricated using a low-pressure casting process by infiltrating molten Al (Al070) into a preform. Both types of short fibers were randomly distributed inside the Al matrix, and the low-pressure casting method achieved dense hybrid composite materials (over 98% relative density). The Vickers hardness and thermal conductivity of the composites were investigated.