Microstructural modeling and thermal property simulation of sintered Ni-Al2O3 composites

Keiko Kikuchi, Yan Sheng Kang, Akira Kawasaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The microstructure of metal/ceramic functionally graded materials changes from disperse structure to continuous structure and then again into disperse structure, in turn the electrical, thermal, and mechanical properties in functionally graded materials change as the composition changes. Therefore, it's very important to know the material properties quantitatively for designing of functionally graded materials. However, few methods for quantitative evaluation of material properties in wide compositional range have been established. This paper describes a new method which enables us to estimate the material properties of composite directly from the microstructure assisted with finite element analysis. The thermal conductivity of sintered nickel/alumina composites as well as the local thermal conductivity and effective thermal resistance of nickel/alumina/nickel functionally graded material have been evaluated by this method.

Original languageEnglish
Pages (from-to)882-886
Number of pages5
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume64
Issue number10
DOIs
Publication statusPublished - 2000 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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