Volume 78, Issue 1 p. 225-228

Fabrication of Polycrystal line, Transparent YAG Ceramics by a Solid-State Reaction Method

Akio Ikesue

Akio Ikesue

Technical Research Center, Krosaki Corporation, 1-1 Higashihama-machi, Yawatanishi-ku, Kitakyushu City 806, Japan

Member, American Ceramic Society.

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Isao Furusato

Isao Furusato

Technical Research Center, Krosaki Corporation, 1-1 Higashihama-machi, Yawatanishi-ku, Kitakyushu City 806, Japan

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Kiichiro Kamata

Kiichiro Kamata

Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-machi, Nagaoka City 940-21, Japan

Member, American Ceramic Society.

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First published: January 1995
Citations: 465

C. Greskovich—contirbuting editor

Abstract

Polycrystalline, transparent YAG (Y3AI5O12) ceramics were fabricated by a solid-state reaction method using high-purity Al2O3 and Y2O3 powders. The mixed powder compacts were sintered at 1600° to 1850°C for 5 h under vacuum. Optical transmittance in the region between the ultraviolet and infrared wavelengths for YAG ceramics (1 mm thick) sintered at 1800°C was similar to that for a YAG single crystal.