HYDROTHERMAL GROWTH OF CRYSTALS OF LaAlO3

Abstract

LaAlO3 has been successfully grown in a hydrothermal system below and above the transition temperature of 435C. Using small autoclaves, growth has been observed in the temperature range of 400C - 600C in 7 m K2CO3 at 10,000 to 20,000 psi. A high pressure form of La(OH)3 is also stable within this temperature and pressure range. Seed crystals up to 1/4 inches x 1/4 inches x 1/ 8 inches were grown from PbF2 fluxes. These crystals are readily doped with Cr by the addition of Cr2O3 to the melt.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1964
Accession Number
AD0614229

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  • Phase Diagrams
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