Densification of sintered lead zirconate titanate by hot isostatic pressing

K. G. Ewsuk, Gary Lynn Messing

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The effects of hot isostatic pressing (HIPing) on sintered lead zirconate titanate are presented. Densities up to ∼98% were obtained by HIPing for 1 h at 1300°C with argon gas pressures of either 20.7 or 138 MPa. The microstructural changes observed after HIPing, and the rapid initial kinetics for densification and pore shrinkage, indicate that prssure-enhanced grain rearrangement and solution-precipitation processes are primarily responsible for densification. The persistance of large voids after HIPing suggests that it may be impossible to completely eliminate gross processing-related defects in lead zirconate titanate by HIPing.

Original languageEnglish (US)
Pages (from-to)1530-1534
Number of pages5
JournalJournal of Materials Science
Volume19
Issue number5
DOIs
StatePublished - May 1 1984

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Hot isostatic pressing
Densification
Argon
Gases
lead titanate zirconate
Defects
Kinetics
Processing

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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Densification of sintered lead zirconate titanate by hot isostatic pressing. / Ewsuk, K. G.; Messing, Gary Lynn.

In: Journal of Materials Science, Vol. 19, No. 5, 01.05.1984, p. 1530-1534.

Research output: Contribution to journalArticle

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AB - The effects of hot isostatic pressing (HIPing) on sintered lead zirconate titanate are presented. Densities up to ∼98% were obtained by HIPing for 1 h at 1300°C with argon gas pressures of either 20.7 or 138 MPa. The microstructural changes observed after HIPing, and the rapid initial kinetics for densification and pore shrinkage, indicate that prssure-enhanced grain rearrangement and solution-precipitation processes are primarily responsible for densification. The persistance of large voids after HIPing suggests that it may be impossible to completely eliminate gross processing-related defects in lead zirconate titanate by HIPing.

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