کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574544 | 1514716 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-strength bulk nano-crystalline silver prepared by selective leaching combined with spark plasma sintering
ترجمه فارسی عنوان
نقره نانو کریستالوسی با ابعاد بسیار بالا و با شستشوی انتخابی همراه با پخت سرامیک جرقه
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کلمات کلیدی
مواد نانوکریستال، نقره، پخت سیلر جرقه، اشباع انتخابی، استحکام،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In this work, we propose a novel technique to prepare bulk nano-crystalline metals or alloys using selective chemical leaching and spark plasma sintering. The bulk nano-crystalline silver was successfully prepared by this technique. The average grain size of the bulk material was 50Â nm. The Vickers hardness, compressive yield strength, ultimate compressive strength and maximum compressive strain of the nano-crystalline silver were 155 HV 0.04, 520Â MPa, 620Â MPa and 20%, respectively. Micro-crystalline and coarse-grained silver were also prepared as reference materials. The bulk nano-crystalline silver prepared by the novel technique exhibited the highest hardness and compressive strength reported to date. The mechanical properties of the material from this work are compared to those from other works using the Hall-Petch relationship, and the relevant properties are discussed in relation to the preparation technique and structural characteristics of the materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 627, 11 March 2015, Pages 326-332
Journal: Materials Science and Engineering: A - Volume 627, 11 March 2015, Pages 326-332
نویسندگان
Ivo Marek, Dalibor VojtÄch, Alena Michalcová, TomáÅ¡ FrantiÅ¡ek KubatÃk,