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熱間押出法を用いた炭素繊維一方向配向Cu基複合材料の作製と熱伝導特性評価

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/75370

Title: 熱間押出法を用いた炭素繊維一方向配向Cu基複合材料の作製と熱伝導特性評価
Other Titles: Fabrication of Unidirectionally Orientated Carbon Fiber Reinforced Cu-Based Composites by Hot Extrusion and Evaluation of Their Thermal Properties
Authors: 紺谷, 博人1 Browse this author
徳永, 透子2 Browse this author →KAKEN DB
大野, 宗一3 Browse this author →KAKEN DB
佐々木, 克彦4 Browse this author
松浦, 清隆5 Browse this author →KAKEN DB
Authors(alt): Kontani, Hiroto1
Tokunaga, Toko2
Ohno, Munekazu3
Sasaki, Katsuhiko4
Matsuura, Kiyotaka5
Keywords: carbon fiber
copper
thermal conductivity
composite
extrusion
Issue Date: 1-May-2018
Publisher: 日本金属学会
Journal Title: 日本金属学会誌
Journal Title(alt): Journal of the Japan Institute of Metals and Materials
Volume: 82
Issue: 5
Start Page: 125
End Page: 129
Publisher DOI: 10.2320/jinstmet.J2017047
Abstract: Unidirectional orientation of the carbon fiber is essential in the fabrication of Cu-carbon fiber composites with high thermal conductivity, because the fiber exhibits its very high thermal conductivity only in the longitudinal direction. In this study, hot extrusion of a mixture of Cu powder and carbon fiber was applied to fabricate the unidirectionally orientated carbon fiber reinforced Cu-based composite and the effects of the volume fraction of carbon fiber on the thermal conductivity have been investigated. It has been demonstrated that hot extrusion of the Cu powder-carbon fiber mixture successfully align the fiber to orient along the extrusion direction, and consequently, the thermal conductivity in this direction increases with the volume fraction of carbon fiber. For the composite with more than 30 vol% carbon fiber, the application of ultrasonic vibration treatment to the powder-fiber mixture is effective for improving the homogeneity of the mixing and hence increasing the relative density and the thermal conductivity of the composite.
Type: article
URI: http://hdl.handle.net/2115/75370
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大野 宗一

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