Governing the Inclination Angle of Graphite Flakes in the Graphite Flake/Al Composites by Controlling the Al Particle Size via Flake Powder Metallurgy
来源期刊：Acta Metallurgica Sinica2020年第5期
论文作者：Dong Li Chaoyu Wang Yishi Su Di Zhang Qiubao Ouyang
文章页码：649 - 658
摘 要：The inclination angle of the flake particle has a significant impact on the in-plane thermal conductivity of composites.The graphite flake/Al composites（50 vol%） with different inclination angles were fabricated via flake powder metallurgy,and the results show that with increasing the size of Al particle from 25.6 to 50.7 μm,the inclination angle of graphite flake decreases from 7.3° to 4.4°,while the in-plane thermal conductivity of composites increases from 473 to 555 Wm-1 K-1.Based on the rules of mixture,an effective model was established to qualify and quantify the relation between the inclination angle and the in-plane thermal conductivity of the corresponding composites.This model can also be applied to other flake particle-reinforced composites.
Dong Li，Chaoyu Wang，Yishi Su，Di Zhang，Qiubao Ouyang
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University
摘 要：The inclination angle of the flake particle has a significant impact on the in-plane thermal conductivity of composites.The graphite flake/Al composites（50 vol%） with different inclination angles were fabricated via flake powder metallurgy,and the results show that with increasing the size of Al particle from 25.6 to 50.7 μm,the inclination angle of graphite flake decreases from 7.3° to 4.4°,while the in-plane thermal conductivity of composites increases from 473 to 555 Wm-1 K-1.Based on the rules of mixture,an effective model was established to qualify and quantify the relation between the inclination angle and the in-plane thermal conductivity of the corresponding composites.This model can also be applied to other flake particle-reinforced composites.
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