کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803848 | 1516474 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pressure-induced γ â α-NaTiOPO4 phase transition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The effect of applied pressure on α- and γ-NaTiOPO4 (NaTP) was studied at wide temperature range using the X-ray diffraction technique. Neither a phase transition nor a noticeable cell volume decrease was observed for the α-NaTP polymorph up to 8 GPa, even when heating up to 1073 K. The applied pressure retains the γ-NaTP structural topology up to 8 GPa for r.t. experiments, although a 4% decrease of cell volume had been observed. Hot pressing was found to provoke the γ-NaTP â α-NaTP phase transformation, starting at 773 K and 4.45 GPa. A complete transition has been observed at 873 K and 7.7 GPa. A mechanism for the pressure-driven γ-NaTP â α-NaTP phase transition has been proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 393, Issues 1â2, 3 May 2005, Pages 66-69
Journal: Journal of Alloys and Compounds - Volume 393, Issues 1â2, 3 May 2005, Pages 66-69
نویسندگان
N.V. Stus, M.S. Slobodyanik, D.A. Stratiychuk, V.V. Lisnyak,