Synthesis and Characterization of the Mg2SixGe1-x Solid Solution

Autor:	Eva Ratai, Susan M. Kauzlarich, Matthew P. Augustine
Rok vydání:	2004
Předmět:	Diffraction Microprobe Homogeneous Chemistry Band gap Inorganic chemistry Isotropy Analytical chemistry General Medicine Stoichiometry Solid solution Characterization (materials science)
Zdroj:	ChemInform. 35
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.200406006
Popis:	The Mg 2 Si x Ge 1 - x solid solution was prepared by heating stoichiometric amounts of elemental Mg, Si, and Ge in an argon atmosphere. Both microprobe and X-ray diffraction analysis of the reaction products suggest that homogeneous alloys can be made by heating the elements to 1200 °C, a temperature roughly 100 °C in excess of the melting temperatures for pure Mg 2 Si and Mg 2 Ge. 2 9 Si solid-state nuclear magnetic resonance was used to characterize the Mg 2 Si x Ge 1 - x solid solution. The 2 9 Si isotropic chemical shift changes consistent with the band gap in these materials while the line width increases with local disorder.
Databáze:	OpenAIRE
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