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Title: High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO[sub 2]-ErO[sub 1. 5] system: I, phase change between two forms of a tetragonal phase, t[prime]-ZrO[sub 2] and t[double prime]-ZrO[sub 2], in the compositionally homogeneous 14 mol% ErO[sub 1. 5]-ZrO[sub 2]

Abstract

The cubic-tetragonal phase transition of 14 mol% ErO[sub 1.5]-ZrO[sub 2] was investigated through high-temperature powder X-ray diffraction. A new tetragonal form without tetragonality, t[double prime]-ZrO[sub 2], was taken into consideration, although only two forms of t- and t[prime]-ZrO[sub 2] have previously been distinguished. The metastable t[double prime]-ZrO[sub 2], which could be obtained by rapid quenching of 14 mol% ErO[sub 1.5]-ZrO[sub 2] melts, partially changed into t[prime]-ZrO[sub 2] through a thermal activation process above 500C. The t[prime]-ZrO[sub 2] continuously changed into t[double prime]-ZrO[sub 2] or transformed into cubic phase at about 1,200C. The t[prime]-t[double prime] change occurred reversibly below 1,100C.

Authors:
; ;  [1]
  1. (Tokyo Inst. of Tech., Yokohama (Japan). Research Lab. of Engineering Materials)
Publication Date:
OSTI Identifier:
6239152
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Ceramic Society; (United States); Journal Volume: 76:3
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ERBIUM OXIDES; CRYSTAL-PHASE TRANSFORMATIONS; ZIRCONIUM OXIDES; CRYSTAL STRUCTURE; CUBIC LATTICES; EXPERIMENTAL DATA; PHASE STUDIES; POWDERS; QUENCHING; SAMPLE PREPARATION; TEMPERATURE RANGE 1000-4000 K; TETRAGONAL LATTICES; X-RAY DIFFRACTION; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; DATA; DIFFRACTION; ERBIUM COMPOUNDS; INFORMATION; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Yashima, Masatomo, Ishizawa, Nobuo, and Yoshimura, Masahiro. High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO[sub 2]-ErO[sub 1. 5] system: I, phase change between two forms of a tetragonal phase, t[prime]-ZrO[sub 2] and t[double prime]-ZrO[sub 2], in the compositionally homogeneous 14 mol% ErO[sub 1. 5]-ZrO[sub 2]. United States: N. p., 1993. Web. doi:10.1111/j.1151-2916.1993.tb03654.x.
Yashima, Masatomo, Ishizawa, Nobuo, & Yoshimura, Masahiro. High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO[sub 2]-ErO[sub 1. 5] system: I, phase change between two forms of a tetragonal phase, t[prime]-ZrO[sub 2] and t[double prime]-ZrO[sub 2], in the compositionally homogeneous 14 mol% ErO[sub 1. 5]-ZrO[sub 2]. United States. doi:10.1111/j.1151-2916.1993.tb03654.x.
Yashima, Masatomo, Ishizawa, Nobuo, and Yoshimura, Masahiro. Mon . "High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO[sub 2]-ErO[sub 1. 5] system: I, phase change between two forms of a tetragonal phase, t[prime]-ZrO[sub 2] and t[double prime]-ZrO[sub 2], in the compositionally homogeneous 14 mol% ErO[sub 1. 5]-ZrO[sub 2]". United States. doi:10.1111/j.1151-2916.1993.tb03654.x.
@article{osti_6239152,
title = {High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO[sub 2]-ErO[sub 1. 5] system: I, phase change between two forms of a tetragonal phase, t[prime]-ZrO[sub 2] and t[double prime]-ZrO[sub 2], in the compositionally homogeneous 14 mol% ErO[sub 1. 5]-ZrO[sub 2]},
author = {Yashima, Masatomo and Ishizawa, Nobuo and Yoshimura, Masahiro},
abstractNote = {The cubic-tetragonal phase transition of 14 mol% ErO[sub 1.5]-ZrO[sub 2] was investigated through high-temperature powder X-ray diffraction. A new tetragonal form without tetragonality, t[double prime]-ZrO[sub 2], was taken into consideration, although only two forms of t- and t[prime]-ZrO[sub 2] have previously been distinguished. The metastable t[double prime]-ZrO[sub 2], which could be obtained by rapid quenching of 14 mol% ErO[sub 1.5]-ZrO[sub 2] melts, partially changed into t[prime]-ZrO[sub 2] through a thermal activation process above 500C. The t[prime]-ZrO[sub 2] continuously changed into t[double prime]-ZrO[sub 2] or transformed into cubic phase at about 1,200C. The t[prime]-t[double prime] change occurred reversibly below 1,100C.},
doi = {10.1111/j.1151-2916.1993.tb03654.x},
journal = {Journal of the American Ceramic Society; (United States)},
number = ,
volume = 76:3,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 1993},
month = {Mon Mar 01 00:00:00 EST 1993}
}