کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1583149 | 1514884 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microhardness and fracture toughness of ã1Â 1Â 1ã-oriented Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microhardness and fracture toughness of ã1Â 1Â 1ã-oriented Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal Microhardness and fracture toughness of ã1Â 1Â 1ã-oriented Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal](/preview/png/1583149.png)
چکیده انگلیسی
Novel relaxor ferroelectric single crystal (1âx)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (PZNT) was grown by vertical Bridgman method, the mechanical properties of the (1Â 1Â 1) face were systematically researched using microindentation technique. It was found that the Vickers' microhardness Hv was as a function of the applied load. In the range of 0.1-3Â kg, Hv was decreased from 4.03 to 3.26Â GPa. The dependence of Hv on applied load could be explained on the basis of Kick's law, and the Meyer index n was determined to be 1.88. In-plane crack anisotropy behavior was observed on the wafer, the crack length in the direction parallel to domain wall was longer than that perpendicular to it, therefore, the (1Â 1Â 1) PZNT crystal displayed fracture toughness Kc anisotropy accordingly. The crack types (radial-median and Palmqvist systems) parallel and perpendicular to the domain wall in the 0.1-3Â kg load range were classified.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 472, Issues 1â2, 15 January 2008, Pages 353-357
Journal: Materials Science and Engineering: A - Volume 472, Issues 1â2, 15 January 2008, Pages 353-357
نویسندگان
Min Jin, Jiayue Xu, Xinhua Li, Hui Shen, Qingbo He,