کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629840 | 991190 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modulus and hardness evaluation of polycrystalline superconductors by dynamic microindentation technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, depth-sensing Vickers indentation tests were conducted on polycrystalline superconductors under different peak load (0.49, 0.73, 0.98, and 1.22Â N). The load (P)-penetration depth (h) curves were analyzed in order to evaluate the mechanical characteristics such as microhardness and elastic modulus. It was found that both of these characteristics exhibited significant peak load dependence which suggested a need for calculation of the load-independent hardness and modulus. The load independent hardness (0.88, 0.95, and 1.12Â GPa) and modulus (1.98, 3.13, and 3.33Â GPa) values were then calculated for YBCO, YBCO + 0.5% ZnO, and YBCO + 1% ZnO, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 25, Issue 6, March 2005, Pages 969-977
Journal: Journal of the European Ceramic Society - Volume 25, Issue 6, March 2005, Pages 969-977
نویسندگان
Orhan Uzun, UÄur Kölemen, Selahattin Ãelebi, Nusret Güçlü,