کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1314613 975978 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fluorinated transition alumina with Al2−x/3O3−xFx compositions: Thermal, chemical, structural and morphological investigations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Fluorinated transition alumina with Al2−x/3O3−xFx compositions: Thermal, chemical, structural and morphological investigations
چکیده انگلیسی

Fluorinated transition aluminas (Al2−x/3O3−xFx) with hexagonal platelet shape were synthesized via decomposition of α-AlF3 under air; they are thermally stable up to 1000 °C and exhibit at 1150 °C a weight loss with volume reduction caused by fluorine departure corresponding to a phase transition toward corundum alumina. The different characterizations performed in this study are structural (XRD), chemical (TGA-MS and microprobe analysis) and morphological (SEM, TEM and dilatometry). The evidence provided from this study is consistent with the formation of an Al–O–F phase as an intermediate compound in the pyrohydrolysis of an aluminium trifluoride phase to α-Al2O3.

For the first time, an Al–O–F phase (fluorinated transition alumina with Al2−x/3O3−xFx composition) with hexagonal structure/crystallites shape was synthesized via decomposition of α-AlF3 under air.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluorine Chemistry - Volume 129, Issue 12, December 2008, Pages 1173–1179
نویسندگان
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