발간논문

Home > KJMM 논문 > 발간논문

Vol.29, No.1, 40 ~ 49, 1991
Title
Dispersion Morphology of Particulate Dispersed Al/ Al2O3 Composite materials
박상준Sang Joon Park, 이승원Seung Won Lee, 권혁무Hyuk Moo Kwon
Abstract
Dispersion morphology of particulate Al/Al₂O₃ composite materials prepared by compocasting has been studied by using optical microscope, SEM and EPMA. An attempt has been made to understand the dispersion behavior and interfacial reaction of Al₂O₃ particles in both Al melt and solid-melt dual phase after homogenization and solution treatment. Cu and Mg form metastable compounds preferably around Al₂O₃ particles and tend to be distributed uniformly in matrix with the content of Al₂O₃ dispersoids. Microstructural analysis of Al/Al₂O₃ composites as prepared by gravitational casting shows that most of Al₂O₃ dispersoids are observed at grain boundary while part of them are distributed inside the grain. The metastable compounds around Al₂O₃ are dissolved when the Al/Al₂O₃ composites are homogenized and solutionized. Particularly, Cu compounds are dissolved remarkably into the matrix.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.