Crack-healing function of metal/Al2O3 hybrid materials

M. Nanko, D. Maruoka, T. D. Nguyen

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Nano-Ni/Al2O3 hybrid materials have the crack-healing function by thermal oxidation process such as 1200°C for 6 h in air. In this hybrid material system, crack was filled up by an oxidation product, NiAl2O4, via outward diffusion of cations along grain boundaries of Al2O3 matrix. Ni/Al2O3 with Y2O3 doping and SiC+Ni/Al2O3 nano-hybrid materials have similar crack-healing performance with better oxidation resistance at high temperatures than Ni/Al2O3 nano-hybrid materials. Mo/Al2O3 hybrid materials were studied on a candidate with crack-healing function via thermal oxidation process at temperatures as low as 700°C.

Original languageEnglish
Article number082005
JournalIOP Conference Series: Materials Science and Engineering
Volume18
Issue numberSYMPOSIUM 5
DOIs
Publication statusPublished - 2011
Event3rd International Congress on Ceramics, ICC 2011 - Osaka, Japan
Duration: 2010 Nov 142010 Nov 18

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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