Stress‐Induced Phase Transformation in the Systems (Ho1−xLax)4Al2O9 and (Y1−xLax)4Al2O9

Hirotsugu Takizawa; Masahiko Shimad; Kazuo Shimoyashiki; Tadashi Endo

doi:10.1111/j.1151-2916.1994.tb04630.x

Stress‐Induced Phase Transformation in the Systems (Ho_1−xLa_x)₄Al₂O₉ and (Y_1−xLa_x)₄Al₂O₉

Hirotsugu Takizawa, Masahiko Shimad, Kazuo Shimoyashiki, Tadashi Endo

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6 Citations (Scopus)

Abstract

New orthorhombic phases in (Ho_1−xLa_x)₄Al₂O₉ and (Y_1−xLa_x)₄Al₂O₉ systems have been synthesized by reaction sintering at 1600°C for 30 h in air and have been metastably retained to room temperature. Stress‐induced phase transformation from the orthorhombic phase to the monoclinic phase occurred in both systems. This phase transformation was accompanied by a 0.5% volume increase.

Original language	English
Pages (from-to)	2489-2490
Number of pages	2
Journal	Journal of the American Ceramic Society
Volume	77
Issue number	9
DOIs	https://doi.org/10.1111/j.1151-2916.1994.tb04630.x
Publication status	Published - 1994 Sep

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1994.tb04630.x

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abstract = "New orthorhombic phases in (Ho1−xLax)4Al2O9 and (Y1−xLax)4Al2O9 systems have been synthesized by reaction sintering at 1600°C for 30 h in air and have been metastably retained to room temperature. Stress‐induced phase transformation from the orthorhombic phase to the monoclinic phase occurred in both systems. This phase transformation was accompanied by a 0.5% volume increase.",

author = "Hirotsugu Takizawa and Masahiko Shimad and Kazuo Shimoyashiki and Tadashi Endo",

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AU - Takizawa, Hirotsugu

AU - Shimad, Masahiko

AU - Shimoyashiki, Kazuo

AU - Endo, Tadashi

PY - 1994/9

Y1 - 1994/9

N2 - New orthorhombic phases in (Ho1−xLax)4Al2O9 and (Y1−xLax)4Al2O9 systems have been synthesized by reaction sintering at 1600°C for 30 h in air and have been metastably retained to room temperature. Stress‐induced phase transformation from the orthorhombic phase to the monoclinic phase occurred in both systems. This phase transformation was accompanied by a 0.5% volume increase.

AB - New orthorhombic phases in (Ho1−xLax)4Al2O9 and (Y1−xLax)4Al2O9 systems have been synthesized by reaction sintering at 1600°C for 30 h in air and have been metastably retained to room temperature. Stress‐induced phase transformation from the orthorhombic phase to the monoclinic phase occurred in both systems. This phase transformation was accompanied by a 0.5% volume increase.

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Stress‐Induced Phase Transformation in the Systems (Ho_1−xLa_x)₄Al₂O₉ and (Y_1−xLa_x)₄Al₂O₉

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