کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
701986 1460783 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analytical model for the mechanical deformation of locally graphitized diamond
ترجمه فارسی عنوان
یک مدل تحلیلی برای تغییر شکل مکانیکی الماس گرافیتی محلی
کلمات کلیدی
الماس، آسیب ناشی از یون، تجزیه و تحلیل، انلینگ، تغییر شکل مکانیکی، مدل سازی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی


• Analytical model for the mechanical deformation of irradiated single-crystal diamond is proposed.
• Model predictions verified with experimental data and numerical FEM simulations.
• Internal stresses can also be calculated to evaluate risk of cracking.

We propose an analytical model to describe the mechanical deformation of single-crystal diamond following the local sub-superficial graphitization obtained by laser beams or MeV ion microbeam implantation. In this case, a local mass–density variation is generated at specific depths within the irradiated micrometric regions, which in turn leads to swelling effects and the development of corresponding mechanical stresses. Our model describes the constrained expansion of the locally damaged material and correctly predicts the surface deformation, as verified by comparing analytical results with experimental profilometry data and Finite Element simulations. The model can be adopted to easily evaluate the stress and strain fields in locally graphitized diamond in the design of microfabrication processes involving the use of focused ion/laser beams, for example to predict the potential formation of cracks, or to evaluate the influence of stress on the properties of opto-mechanical devices.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 48, September 2014, Pages 73–81
نویسندگان
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