Effect of chemical bonding states on the tensile ductility in glass-doped TZP

A. Kuwabara, S. Yokota, Y. Ikuhara, T. Sakuma

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

The chemical bonding states of silica-doped YTZP are computed by the DV-Xα molecular orbital calculation. It is clarified that silicon ions substituted into the lattice of TZP have extremely high covalent bonding with oxygen ions, while other cations, magnesium and titanium ions reduce the covalency. The increment of covalency of bondings around doped cations seems to have a critical role to exhibit thee improved tensile ductility in silica-doped YTZP.

Original languageEnglish
Pages (from-to)399-404
Number of pages6
JournalMaterials Science Forum
Volume357-359
DOIs
Publication statusPublished - 2001 Jan 1
Externally publishedYes
EventSuperplasticity in Advanced Materials (ICSAM-2000) - Orlando, FL, United States
Duration: 2000 Aug 12000 Aug 4

Keywords

  • Chemical bonding state
  • Grain boundary
  • Molecular orbital calculations
  • Superplasticity
  • TZP

ASJC Scopus subject areas

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

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