کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1473969 991071 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sub-solidus phase relations and a structure determination of new phases in the CaO–La2O3–TiO2 system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Sub-solidus phase relations and a structure determination of new phases in the CaO–La2O3–TiO2 system
چکیده انگلیسی

Sub-solidus phase relations in the ternary CaO–La2O3–TiO2 system at 1400 °C in air were determined. The multi-phase samples were prepared by a solid-state reaction method, whereas the single-phase samples for the structure analysis of selected solid solutions were prepared by a wet-precipitation method in order to provide good homogeneity of the starting mixtures. The phases in the prepared samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS). The oxides form seven ternary compounds in the equilibrium state, many solid solutions (which extend across a broad concentration region), and a large, single-phase area based on the CaTiO3 solid solution. The structures of several new phases – solid solutions on the tie lines CaTiO3–Ca3La4Ti3O15 and La2TiO5–Ca3La4Ti3O15 – were determined in detail.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 35, Issue 10, September 2015, Pages 2801–2814
نویسندگان
, , , , ,