Interfacial microstructure and growth mechanism of Al4C3 in Grf/Al composites fabricated by liquid pressure method

Wang Xu; Wang Chenchong; Zhang Zhichao; Liang Ping; Shi Yanhua; Zhang Guofu

doi:10.1016/j.micron.2014.04.007

Interfacial microstructure and growth mechanism of Al4C3 in Grf/Al composites fabricated by liquid pressure method

Micron. 2014 Oct:65:10-4. doi: 10.1016/j.micron.2014.04.007. Epub 2014 Apr 19.

Authors

Wang Xu¹, Wang Chenchong², Zhang Zhichao³, Liang Ping³, Shi Yanhua³, Zhang Guofu³

Affiliations

¹ School of Mechanical Engineering, Liaoning Shihua University, Fushun, PR China. Electronic address: wx1979875@hotmail.com.
² School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, PR China.
³ School of Mechanical Engineering, Liaoning Shihua University, Fushun, PR China.

PMID: 25041826
DOI: 10.1016/j.micron.2014.04.007

Abstract

In this study, Grf/Al composite was fabricated by liquid pressure method. The diffusion layer and the nucleation and growth of Al4C3 were observed at the interface of Grf/Al composites by TEM and HRTEM. The growth mechanism of Al4C3 was analyzed in detail by crystallography theory. It was found that Al4C3 had no phase relations with the carbon fiber. (0001) layer of Al4C3 was parallel with main growth direction. Both the diffusion layer at the interface and crystal structure of Al4C3 affected the shape of Al4C3. At a certain position, Al4C3 could connect two fibers when the fibers were close to each other.

Keywords: Al(4)C(3); Aluminum matrix composites; Diffusion layer; Graphite fiber.