کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1624870 | 1516424 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and decomposition of perovskite-type hydrides, MMgH3 (MÂ =Â Na, K, Rb)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and decomposition of perovskite-type hydrides, MMgH3 (MÂ =Â Na, K, Rb) Synthesis and decomposition of perovskite-type hydrides, MMgH3 (MÂ =Â Na, K, Rb)](/preview/png/1624870.png)
چکیده انگلیسی
The perovskite-type hydrides, MMgH3 (M = Na, K, Rb) were synthesized by ball-milling. They decomposed at the temperatures of 673-723 K in several ways depending on M. Namely, NaMgH3 decomposed in the two-step reactions, NaMgH3 â NaH + Mg + H2 and NaH â Na + (1/2)H2, whereas KMgH3 decomposed in the single-step reaction, KMgH3 â K + Mg + (3/2)H2. However, RbMgH3 decomposed in the two-step reactions, but each reaction still remained uncertain. Judging from the experimental value of ÎH for MMgH3 (M = Na, K, Rb), the phase stability was found to change in the order, RbMgH3 > KMgH3 > NaMgH3, so that NaMgH3 is the most unstable among them.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 453, Issues 1â2, 3 April 2008, Pages 157-160
Journal: Journal of Alloys and Compounds - Volume 453, Issues 1â2, 3 April 2008, Pages 157-160
نویسندگان
K. Komiya, N. Morisaku, R. Rong, Y. Takahashi, Y. Shinzato, H. Yukawa, M. Morinaga,