کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1607754 1516241 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties of Y3−xNdxBa5−xCaxCu8O18−δ samples
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Mechanical properties of Y3−xNdxBa5−xCaxCu8O18−δ samples
چکیده انگلیسی
Vickers microhardness measurements of Y3−xNdxBa5−xCaxCu8O18−δ samples, 0.00 ≤ x ≤ 0.40, were carried out at room temperature at different applied loads varies from 0.25 N to 10.00 N. Vickers microhardness decreases as the substitution content increases, as well as it decreases as the applied loads increase. The results were analyzed using different models such as Meyer's law, Hays-Kendall (HK) approach, elastic/plastic deformation (EPD) model, proportional specimen resistance (PSR) model and modified proportional specimen resistance (MPSR) model. The analysis shows that the MPSR model is the most suitable one to describe the load independent microhardness for Y3−xNdxBa5−xCaxCu8O18−δ superconducting samples at high load. Some important mechanical parameters such as Young's modulus (E), yield strength (Y), fracture toughness (Kf) and brittleness index (Bi) were calculated as a function of substitution content. The results show that they decrease by increasing the substation content for Y3−xNdxBa5−xCaxCu8O18−δ samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 652, 15 December 2015, Pages 158-166
نویسندگان
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