کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1475278 | 991115 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Real time TEM observation of alumina ceramic nano-particles during compression
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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: Real time TEM observation of alumina ceramic nano-particles during compression Real time TEM observation of alumina ceramic nano-particles during compression](/preview/png/1475278.png)
چکیده انگلیسی
The behavior of alumina nano-particles taken from a commercial powder is investigated during in situ compression experiments in a transmission electron microscope (TEM). Small particles of 40 nm in diameter can undergo severe plastic deformation without failure, whereas brittle fracture is observed for 120 nm sized nano-particles. This is evidence of a critical size under which alumina, at least in the form of nano-particles, cannot be considered as brittle materials even at room temperature and a direct observation of the grinding limit generally observed during ball milling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 32, Issue 10, August 2012, Pages 2067–2071
Journal: Journal of the European Ceramic Society - Volume 32, Issue 10, August 2012, Pages 2067–2071
نویسندگان
Emilie Calvié, Lucile Joly-Pottuz, Claude Esnouf, Philippe Clément, Vincent Garnier, Jérôme Chevalier, Yves Jorand, Annie Malchère, Thierry Epicier, Karine Masenelli-Varlot,