کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476464 1510146 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Properties variation of Bi-2212 directionally solidified induced by 0.4Pb substitution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Properties variation of Bi-2212 directionally solidified induced by 0.4Pb substitution
چکیده انگلیسی
Vitreous cylinders with compositions Bi2−xPbxSr2CaCu2Oy (x = 0 and 0.4) were prepared and used as precursors to fabricate textured bars through a laser floating zone melting method (LFZ). The resulting textured cylindrical bars, after annealing, were electrical and mechanically characterized through resistivity as a function of temperature, E-I characteristics at 77 K, mechanical strength, σ, Young modulus, EY, Vickers hardness, Hv, and Weibull parameters, S0 and m. The study of the mechanisms controlling the fracture process was made by means of the fractographical analysis using laser scanning confocal microscopy (LSCM). It has been found that the Pb addition lead to an increase of the slope of the E-I curves and to a change in the fracture mode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 27, Issues 13–15, 2007, Pages 3959-3962
نویسندگان
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