Paper Title:
Ni-Doping Alumina Foams for Fabricating MMCs by Pressureless Infiltration Using Fe Alloy
  Abstract

The preparation of Ni-doping alumina foams as precursors for MMCs (Metal Matrix Composites) fabrication was studied. Alumina foams were successfully adulterated with Ni using organic foam impregnation technique. Uniform Ni particles were distributed in alumina struts after they were sintered in a vacuum furnace. At the crucial infiltration step, an inducer such as elemental Ni melted so that interpenetrating channels were created in the ceramics. In contact with Fe melt, the metal matrix could spontaneously infiltrate in alumina foams struts. The influence of infiltration was subsequently investigated by SEM and EDS. Preliminary results showed that the interface between Ni-doping alumina foams and Fe metal matrix reached a full structural homogeneity and the use of Ni-doping alumina foams enhanced the capability of infiltration when processing continuous three-dimensional interconnected ceramics/metal networks MMCs by pressureless infiltration technique.

  Info
Periodical
Edited by
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
Pages
712-717
DOI
10.4028/www.scientific.net/AMM.37-38.712
Citation
S. F. Yang, W. P. Chen, M. Y. Han, D. Z. Zhu, "Ni-Doping Alumina Foams for Fabricating MMCs by Pressureless Infiltration Using Fe Alloy", Applied Mechanics and Materials, Vols. 37-38, pp. 712-717, 2010
Online since
November 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Won Seung Cho, Yeon Chul Yoo, Chin Myung Whang, Nam Hee Cho, Woon Suk Hwang, Jun Gyu Kim, Young Jae Kwon
Abstract:Porous alumina bodies were successfully prepared by spark plasma sintering of alumina powders with different amounts of graphite, and by...
1056
Authors: Kozue Matsukawa, Masamitsu Imai, Toyohiko Yano
Abstract:Monazite(LaPO4)-coated alumina-fiber/alumina-YAG (Y3Al5O12) matrix composites were fabricated by in-situ coating of monazite followed by...
213
Authors: Johannes Edelbauer, David Schuller, Oliver Lott, Alwin Nagel
Chapter 2: Metal Matrix Composites and Interpenetrating Materials
Abstract:High temperature squeeze casting enables the fabrication of composite structures for alloys with high melting points, suitable for structural...
93