کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10620605 | 988645 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ferroelastic phase transition compositional dependence for solid-solution [(Li0.5Bi0.5)xBi1âx][MoxV1âx]O4 scheelite-structured microwave dielectric ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
A compositional dependence on the ferroelastic phase transition in scheelite solid-solution [(Li0.5Bi0.5)xBi1âx][MoxV1âx]O4 ceramics was characterized by the microwave dielectric data over the temperature range 10-420 K. As x values increased from 0.0 to 0.125, a dielectric temperature-dependent anomaly consistent with a phase transition decreased linearly from 528 K for the pure BiVO4 end member to 264 K for the solid-solution composition at x = 0.125. With further increasing x, the transition temperature decreased sharply to approximately 45 K and became stable for x ⩾ 0.52. The phase transition point for pure tetragonal (Li0.5Bi0.5)MoO4 ceramics is approximately 43 K. As the x value increases, the Raman band of the [(Li0.5Bi0.5)xBi1âx][MoxV1âx]O4 ceramics at room temperature broadens and overlaps. Ferroelastic domain structures were observed as a function of composition with diffraction contrast imaging and high-resolution imaging with transmission electron microscopy. Structure-property relations are inferred from the microscopy observations and the Raman spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 59, Issue 4, February 2011, Pages 1502-1509
Journal: Acta Materialia - Volume 59, Issue 4, February 2011, Pages 1502-1509
نویسندگان
D. Zhou, W.G. Qu, C.A. Randall, L.X. Pang, H. Wang, X.G. Wu, J. Guo, G.Q. Zhang, L. Shui, Q.P. Wang, H.C. Liu, X. Yao,