Suppression of sintering defects in metal/ceramic graded layers by using inhomogeneous powder mixtures

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Improvement of the drop in shrinkage rate of metal/ceramic powder mixtures may be important to avoid defects, such as distortion or cracking, in sintering of functionally graded materials. The authors previously proposed a method of increasing the sinterability of metal/ceramic powder mixtures by inhomogenization of microstructure, which was achieved by granulating ceramic and metal powders separately before compaction. In this study, Ni/Al 2O3 graded powder compacts are prepared with the inhomogeneous mixtures on some conditions, and the sintering behavior of the compacts is examined analytically and experimentally. Consequently, the effects of inhomogenization on suppressing the sintering defects in graded layers are confirmed.

Original languageEnglish
Title of host publicationAdvances in Sintering Science and Technology II - A Collection of Papers Presented at the International Conference on Sintering 2011
PublisherAmerican Ceramic Society
Pages79-89
Number of pages11
ISBN (Print)9781118273753
Publication statusPublished - Jan 1 2012
Externally publishedYes
EventInternational Conference on Sintering 2011 - Jeju Island, Korea, Republic of
Duration: Aug 26 2011Sep 1 2011

Publication series

NameCeramic Transactions
Volume232
ISSN (Print)1042-1122

Other

OtherInternational Conference on Sintering 2011
CountryKorea, Republic of
CityJeju Island
Period8/26/119/1/11

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Shinagawa, K., & Sakane, Y. (2012). Suppression of sintering defects in metal/ceramic graded layers by using inhomogeneous powder mixtures. In Advances in Sintering Science and Technology II - A Collection of Papers Presented at the International Conference on Sintering 2011 (pp. 79-89). (Ceramic Transactions; Vol. 232). American Ceramic Society.