Enhanced negative thermal expansion property in (KMg)xSc2-x(WO4)3 ceramics synthesized by solid–state reaction

Negative thermally expanded (NTE) (KMg)xSc2-x (WO4)3 (0 = x ≤ 1.5) ceramics have been prepared via solid-state reaction. X-ray diffraction (XRD) analysis reveals that (KMg)xSc2-x (WO4)3 undergoes a composition-induced phase transition as the (KMg)3+-substitution content increases. For x = 0.25, both...

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Bibliographic Details
Published in:Journal of materials research and technology 2022-05, Vol.18, p.1643-1652
Main Authors: Zhang, Zhiping, Wang, Yuenan, Lei, Yang, Zhang, Fang, Chen, Xiaobing, Liu, Hongfei
Format: Article
Language:English
Subjects:
Hexagonal (KMg)xSc2-x(WO4)3
Negative thermal expansion
Solid-state reaction
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Summary:Negative thermally expanded (NTE) (KMg)xSc2-x (WO4)3 (0 = x ≤ 1.5) ceramics have been prepared via solid-state reaction. X-ray diffraction (XRD) analysis reveals that (KMg)xSc2-x (WO4)3 undergoes a composition-induced phase transition as the (KMg)3+-substitution content increases. For x = 0.25, both hexagonal (KMg)xSc2-x (WO4)3 and orthorhombic Sc2(WO4)3 coexisted in the sample. For 0.25 
ISSN:2238-7854
DOI:10.1016/j.jmrt.2022.03.071