کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1507151 | 993841 | 2006 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Why is SrTiO3 much stronger at nanometer than at centimeter scale?
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Why is SrTiO3 much stronger at nanometer than at centimeter scale? Why is SrTiO3 much stronger at nanometer than at centimeter scale?](/preview/png/1507151.png)
چکیده انگلیسی
Nanoindentation of (100), (110) and (111) oriented SrTiO3 single crystals at room temperature led to the appearance of slip bands and simultaneously to discontinuities in the force-penetration curve. Combining both enabled a critical shear stress of the order of 10 GPa to be evaluated which indicates the onset of dislocation generation. Transmission electron microscopy proved that dislocations were nucleated underneath the indenter. The difference between macroscopically and nanoscopically stressed volumes arises due to the availability of mobile dislocations in the former case and due a lack of such dislocations in the latter.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 8, Issue 7, July 2006, Pages 782–792
Journal: Solid State Sciences - Volume 8, Issue 7, July 2006, Pages 782–792
نویسندگان
Peter Paufler, Beate Bergk, Marianne Reibold, André Belger, Nora Pätzke, Dirk C. Meyer,