Structural Study on the Cubic to Tetragonal Transformation in Arc-melted ZrO<SUB>2</SUB>-3 mol%Y<SUB>2</SUB>O<SUB>3</SUB>

• Hayakawa M.

  Department of Mechanical Engineering, Tottori University

• Tada M.

  Formerly Graduate Student Tottori University

• Okamoto H.

  Department of Mechanical Engineering, Tottori University

• Oka M.

  Department of Mechanical Engineering, Tottori University

抄録

A herringbone structure observed in an as arc-melted specimen was investigated using XRD, TEM and surface relief study. The specimen was cooled on a water cooled copper hearth and the grain size was approximately 1 mm. The results confirmed the crystal structure to be tetragonal (a_t=0.5100 and c_t=0.5166 nm, c⁄a=1.0129). The orientation relation among the different variants of the tetragonal lattice and their arrangement in the herring bone structure were determined; the structure was shown to be suited for accommodation to the cubic (fluorite structure) to tetragonal transformation strain. Surface relief associated with the transformation was also observed and correlated to the transformation strain. From these results, the transformation was suggested to be of diffusionless type (martensitic).

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 27 (10), 750-760, 1986

  社団法人 日本金属学会

キーワード

• zirconia
• ceramics
• transformation
• diffusionless transformation
• martensite

詳細情報

• CRID: 1390282680094565504
• NII論文ID: 130003486254
• DOI: 10.2320/matertrans1960.27.750
• COI: 1:CAS:528:DyaL28XmtlWhurk%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/27/10/27_10_750/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可