冷压烧结制备Cu-15%Cr2AlC复合材料的组织与性能研究

doi:10.13228/j.boyuan.issn1006-6543.20150035

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Abstract With homemade high purity Cr2AlC ceramic powder as raw material， the Cu-15%Cr2AlC (mass percent) composite material was prepared by cold-pressing and sintering. The effect of pressing pressure， sintering temperature and sintering time on the resistivity， thermal conductivity， friction coefficient， fracture mode and microstructure of the composite was studied. Results show that resistivity and friction coefficient of the composite decrease， and thermal conductivity of the composite increases with the increasing of the pressing pressure and sintering temperature. The resistivity decreases， the friction coefficient decreases firstly and then increases， and the thermal conductivity increases firstly and then decreases with sintering time increasing. The fracture mode of the composite is brittle fracture. With the increasing of sintering temperature and sintering time， solid solution strengthening occurs between Cr2AlC and Cu， which causing lattice constant distortion of Cr2AlC.

Key words： Cold-pressing sintering Cu-15% Cr2AlC composite Organization Properties

Received: 13 April 2015 Published: 01 February 2016

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	Articles by authors
	SUN Lin
	LIU Jin-Yun
	GUO Yang
	JIN Ying-Rong
	LU Yun

Cite this article:

SUN Lin,LIU Jin-Yun,GUO Yang, et al. Microstructure and properties of Cu-15%Cr2AlC composite prepared by cold-pressing and sintering[J]. , 2016, 26(01): 39-45.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20150035 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2016/V26/I01/39

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