Growth of Mg-Al spinel microcrystals on a sapphire surface using a solution-precipitation method

Che Ming Liu, Jyh Chen Chen

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3 Scopus citations

Abstract

A solution-precipitation process was used to grow Mg-Al spinel microcrystals at etched pits in a c-axial sapphire single crystal surface. In the proposed innovative growth process, the etched pits function as heterogeneous nucleation points. The quenching and aging treatment causes Mg ions to diffuse into the sapphire crystal, precipitating as microcrystals at the etched pits. We found the precipitated crystals to be (111) Mg-Al spinels with a triangular pyramidal shape.

Original languageEnglish
Article number011912
JournalApplied Physics Letters
Volume89
Issue number1
DOIs
StatePublished - 2006

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