Formation of diffusionlessly transformed tetragonal phases in rapid quenching of ZrO 2 -Y 2 O 3 melts

Tatsuo Noma, Masahiro Yoshimura, Shigeyuki Sōmiya, Masaharu Kato, Mezame S. Yanagisawa, Hiroshi Seto

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

ZrO 2 polycrystals, partially stabilized by 2 to 7 mol% Y 2 O 3 , were arc-melted and rapidly quenched using an arc-imaging furnace with a hammer-anvil unit. Some of the specimens were further annealed at 1700° C for 3 h in air. The phases and the microstructures of these ZrO 2 -Y 2 O 3 polycrystals were examined through X-ray diffraction and transmission electron microscopy. Special emphasis was placed upon the examination of the microstructure of the metastable tetragonal phase (t′ phase) which was formed by a diffusionless transformation of the high-temperature cubic phase. It was found that the t′ phase exhibits a twinned and mosaic structure made of alternating layers of twin-related variants. A comparison of the present experimental results with other related works has also been made.

原文English
頁(從 - 到)2689-2692
頁數4
期刊Journal of Materials Science
23
發行號8
DOIs
出版狀態Published - 1988 一月 1

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 材料力學
  • 機械工業

指紋

深入研究「Formation of diffusionlessly transformed tetragonal phases in rapid quenching of ZrO <sub>2</sub> -Y <sub>2</sub> O <sub>3</sub> melts」主題。共同形成了獨特的指紋。

引用此