Superplastically foaming method for reliable porous ceramics

Akira Kishimoto, Takahiro Nakagawa, Takashi Teranishi, Hidetaka Hayashi

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

6 Citations (Scopus)

Abstract

Porous ceramics incorporate pores to improve several properties including thermal insulation, maintaining inherent ceramic properties such as corrosion resistance and large mechanical strength. Conventional porous ceramics are usually fabricated through an insufficient sintering, leading to degraded strength and durability. Contrary to this, we have innovated superplastically foaming method to make ceramic foam only in the solid state. In this method, the previously inserted foam agent evaporates after the full densification of matrix at around the sintering temperature. Closed pores expand utilizing the superplastic deformation driven by the evolved gas pressure. Based on this concept we fabricated 8mol% yttria stabilized zirconia based porous ceramics and examined the properties concerning the high temperature structural material with thermal insulation.

Original languageEnglish
Title of host publicationSuperplasticity in Advanced Materials - ICSAM 2012
PublisherTrans Tech Publications Ltd
Pages109-112
Number of pages4
ISBN (Print)9783037855539
DOIs
Publication statusPublished - 2013
Event11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012 - Albi, France
Duration: Jul 3 2012Jul 5 2012

Publication series

NameMaterials Science Forum
Volume735
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012
CountryFrance
CityAlbi
Period7/3/127/5/12

Keywords

  • Closed pore
  • Foam
  • Superplasticity
  • Zirconia ceramics

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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