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Extremely Low Temperature Crystallization in the A 2 M 3 O 12 Family of Negative Thermal Expansion Materials
Author(s) -
Young Lindsay,
Alvarez Pablo Torrico,
Liu Hongfei,
Lind Cora
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501420
Subject(s) - crystallization , chemistry , amorphous solid , thermal expansion , atmospheric temperature range , negative thermal expansion , hydrolysis , thermal , chemical engineering , crystallography , analytical chemistry (journal) , composite material , materials science , thermodynamics , organic chemistry , physics , engineering
A 2 M 3 O 12 materials (A = Al, Sc, Fe, In, Ga, Y; M = Mo, W) were synthesized using the non‐hydrolytic sol‐gel process. In contrast to previous studies, in which amorphous materials were recovered that required heating to 500–700 °C to induce crystallization, several compounds could be crystallized in a temperature range compatible with low temperature processing of devices and composites. Under certain reaction conditions, crystalline Sc 2 Mo 3 O 12 , Fe 2 Mo 3 O 12 , and In 2 Mo 3 O 12 were obtained at temperatures as low as 230 °C. This may allow use of these materials for in‐situ composite formation, which could result in new practical applications.