Abstract
Two types of Mg–Al–O structures were successfully synthesized under high temperature (above 1173 K). Transmission electron microscopy and group theory analysis reveal the existence of cubic MgAl2O4 and an unreported monoclinic MgAl
x
O
y
phase with four domain variants. The structural relationship between these two phases is discussed in detail. The results shed light on the structural investigation of Mg–Al–O oxides, which are important mineral components of the Earth's lower mantle as well as substrates for the epitaxial growth of semiconductor films. Monoclinic MgAl
x
O
y
nanowires with domain boundaries may also provide a possible high-strength candidate for industrial applications.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Hubei Province
Fundamental Research Funds for the Central Universities
CERS-China Equipment and Education Resources System
China Postdoctoral Science Foundation
Central South University
Suzhou University of Science and Technology
Publisher
International Union of Crystallography (IUCr)
Subject
General Biochemistry, Genetics and Molecular Biology
Cited by
4 articles.
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