کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5459680 1516185 2017 38 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wire electrochemical micromachining of metallic glass using a carbon nanotube fiber electrode
ترجمه فارسی عنوان
سیم الکتریکی الکتروشیمیایی از شیشه های فلزی با استفاده از الکترود فیبر نانولوله کربنی
کلمات کلیدی
شیشه ای فلزی، فیبر کربن نانولوله، سیم میکروکاری الکتروشیمیایی، حمل و نقل عمومی، هیدروفیلیسم،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
Metallic glasses are promising materials for realizing high-performance micro devices in micro-electromechanical systems (MEMS) owing to their excellent functional and structural characteristics. A significant limitation to their application is the challenge of shaping them on a microscale. A technique of wire electrochemical micromachining (WECMM) with a carbon nanotube fiber (CNF) as tool electrode is proposed for microstructure fabrication of metallic glass. WECMM is a type of electrochemical micromachining (ECMM) that is increasingly recognized as a flexible and effective technology to fabricate complex-shaped micro components. Taking the example of a Ni-based metallic glass, Ni72Cr19Si7B2, the polarization and fabrication characteristics in dilute acid electrolytes are investigated. As the machining gap is very small in WECMM, efficient mass transport is extremely important to improve the machining efficiency, stability, and quality. The efficiency of enhancing mass transport using a CNF electrode in this work is shown by flow-field simulation and hydrophilicity analysis, as well as experimental investigation. The maximum feed rate can be doubled and the homogeneity of machined slits improved more than five times compared with the results obtained using a smooth tungsten wire. Finally, complex microstructures based on metallic glass are fabricated by WECMM using a CNF electrode successfully.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 709, 30 June 2017, Pages 760-771
نویسندگان
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