کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1619775 | 1005724 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of gadolinium aluminate powder through citrate gel route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Nanocrystalline gadolinium aluminate (GdAlO3) powder was prepared through citrate gel route. The thermal decomposition behavior of gadolinium-aluminium-citrate-nitrate precursor powder was studied with the help of thermo gravimetric analysis combined with differential scanning calorimetry and mass spectroscopy. The phase evolution of the powder at different temperatures was characterized by high-temperature X-ray diffraction. The decomposition of the precursor powder in oxidizing atmosphere was found to be a three-step process: (i) evolution of water and ammonia; (ii) evolution of carbon dioxide, residual water, and ammonia; (iii) oxidation of residual carbon. Calcination of precursor powder at 800 °C under static air was found to result in GdAlO3 phase. In the absence of oxidizing atmosphere the amorphous precursor powder only partially crystallized into GdAlO3 phase at 1200 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 502, Issue 2, 23 July 2010, Pages 396-400
Journal: Journal of Alloys and Compounds - Volume 502, Issue 2, 23 July 2010, Pages 396-400
نویسندگان
Amit Sinha, B.P. Sharma, H. Näfe, P. Gopalan,