Autohydration of Nanosized Cubic Zirconium Tungstate | Zendy

Nathan A. Banek | Zendy; Hassan I. Baiz | Zendy; Akena Latigo | Zendy; Cora Lind | Zendy

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Autohydration of Nanosized Cubic Zirconium Tungstate

Author(s) -

Nathan A. Banek,

Hassan I. Baiz,

Akena Latigo,

Cora Lind

Publication year - 2010

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja101475f

Subject(s) - tungstate , chemistry , zirconium , hydrothermal circulation , nanoparticle , limiting , chemical engineering , kinetics , thermal expansion , negative thermal expansion , thermal , inorganic chemistry , metallurgy , thermodynamics , materials science , mechanical engineering , physics , quantum mechanics , engineering

Nanoparticulate zirconium tungstate prepared through hydrothermal methods was found to autohydrate under ambient conditions. This results in positive thermal expansion, limiting its usefulness for controlled thermal expansion composites. TEM and BET studies provided strong evidence that the cause of autohydration is a result of structural defects present in the nanoparticles, while kinetics are governed by surface area, suggesting that processing methods can be used to minimize or overcome this problem.

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