کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10620864 | 988724 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain coalescence and its effect on stress and elasticity in nanocrystalline metal films
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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: Grain coalescence and its effect on stress and elasticity in nanocrystalline metal films Grain coalescence and its effect on stress and elasticity in nanocrystalline metal films](/preview/png/10620864.png)
چکیده انگلیسی
An approach based on the grain coalescence mechanism is developed to explain and predict the elastic behavior (and stress) of nanocrystalline films. The model explains how, under an external strain, coalescence and decoalescence at grain boundaries alter the stress state of the film, thereby reducing the film's effective Young's modulus. An assessment of the effect of coalescence at grain boundaries could be made on the basis of the analysis of the contributions of grain boundary and strain energies. The estimations of Young's modulus and stress based on the model are in agreement with the data experimentally observed for sputtered iron nanocrystalline films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 55, Issue 3, February 2007, Pages 777-784
Journal: Acta Materialia - Volume 55, Issue 3, February 2007, Pages 777-784
نویسندگان
N.R. Shamsutdinov, A.J. Böttger, B.J. Thijsse,