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Title: Postsintering hot isostatic pressing of ceria-doped tetragonal zirconia/alumina composites in a argon-oxygen gas atmosphere

Abstract

This paper reports that ceria-doped tetragonal zirconia (Ce-TZP)/alumina (Al{sub 2}O{sub 3}) composites were fabricated by sintering at 1450{degrees} to 1600{degrees} C in air, followed by hot isostatic pressing at 1450{degrees} C and 100 MPa in an 80 vol% Ar-20 vol% O{sub 2} gas atmosphere. Dispersion of Al{sub 2}O{sub 3} particles into Ce-TZP was useful in increasing the relative density and suppressing the grain growth of Ce-TZP before hot isostatic pressing, but improvement of the fracture strength and fracture toughness was limited. Postsintering hot isostatic pressing was useful to densify Ce-TZP/Al{sub 2}O{sub 3} composites without grain growth and to improve the fracture strength and thermal shock resistance.

Authors:
; ;  [1]
  1. Dept. of Applied Chemistry, Faculty of Engineering, Tohoku Univ., Sendai 980 (JP)
Publication Date:
OSTI Identifier:
5059708
Resource Type:
Journal Article
Journal Name:
Journal of the American Ceramic Society; (United States)
Additional Journal Information:
Journal Volume: 72:5; Journal ID: ISSN 0002-7820
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERIUM COMPOUNDS; FABRICATION; ZIRCONIUM OXIDES; AIR; ARGON; CERIUM ADDITIONS; COMPOSITE MATERIALS; DOPED MATERIALS; FRACTURING; HIGH PRESSURE; HOT PRESSING; MIXTURES; OXYGEN; SINTERING; VERY HIGH TEMPERATURE; YIELD STRENGTH; ALLOYS; CERIUM ALLOYS; CHALCOGENIDES; COMMINUTION; DISPERSIONS; ELEMENTS; FLUIDS; GASES; MATERIALS; MATERIALS WORKING; MECHANICAL PROPERTIES; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PRESSING; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; RARE EARTH COMPOUNDS; RARE GASES; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Sato, T, Endo, T, and Shimada, M. Postsintering hot isostatic pressing of ceria-doped tetragonal zirconia/alumina composites in a argon-oxygen gas atmosphere. United States: N. p., 1989. Web. doi:10.1111/j.1151-2916.1989.tb06213.x.
Sato, T, Endo, T, & Shimada, M. Postsintering hot isostatic pressing of ceria-doped tetragonal zirconia/alumina composites in a argon-oxygen gas atmosphere. United States. https://doi.org/10.1111/j.1151-2916.1989.tb06213.x
Sato, T, Endo, T, and Shimada, M. 1989. "Postsintering hot isostatic pressing of ceria-doped tetragonal zirconia/alumina composites in a argon-oxygen gas atmosphere". United States. https://doi.org/10.1111/j.1151-2916.1989.tb06213.x.
@article{osti_5059708,
title = {Postsintering hot isostatic pressing of ceria-doped tetragonal zirconia/alumina composites in a argon-oxygen gas atmosphere},
author = {Sato, T and Endo, T and Shimada, M},
abstractNote = {This paper reports that ceria-doped tetragonal zirconia (Ce-TZP)/alumina (Al{sub 2}O{sub 3}) composites were fabricated by sintering at 1450{degrees} to 1600{degrees} C in air, followed by hot isostatic pressing at 1450{degrees} C and 100 MPa in an 80 vol% Ar-20 vol% O{sub 2} gas atmosphere. Dispersion of Al{sub 2}O{sub 3} particles into Ce-TZP was useful in increasing the relative density and suppressing the grain growth of Ce-TZP before hot isostatic pressing, but improvement of the fracture strength and fracture toughness was limited. Postsintering hot isostatic pressing was useful to densify Ce-TZP/Al{sub 2}O{sub 3} composites without grain growth and to improve the fracture strength and thermal shock resistance.},
doi = {10.1111/j.1151-2916.1989.tb06213.x},
url = {https://www.osti.gov/biblio/5059708}, journal = {Journal of the American Ceramic Society; (United States)},
issn = {0002-7820},
number = ,
volume = 72:5,
place = {United States},
year = {1989},
month = {5}
}