کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623195 1516412 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterizations of Ba0.8Ca0.2TiO3 by complex polymerization method (CPM)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Preparation and characterizations of Ba0.8Ca0.2TiO3 by complex polymerization method (CPM)
چکیده انگلیسی

Ba0.8Ca0.2TiO3 (BCT) was prepared by the complex polymerization method (CPM) using Ba0.8Ca0.2CO3 and [Ti[OCH(CH3)2]4 as starting materials. The powders were crystallized at several temperatures from 400 to 1200 °C using different times (from 1 to 8 h). The phase evolution and the physical properties were characterized by X-ray diffraction, Raman and IR spectroscopy. Such results indicate that the precursor Ba0.8Ca0.2CO3 used in the synthesis of Ba0.8Ca0.2TiO3 promotes an effective complexation of the ions Ca2+ in the matrix of BaTiO3. After heat treatment for 2 h at 600 °C the phase BCT was obtained with absence of the CaTiO3 or BaCO3 phases. The CPM is an efficient method in the synthesis of the BCT, using small reaction time and low temperature and cost for the preparation of these powders.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 465, Issues 1–2, 6 October 2008, Pages 452–457
نویسندگان
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