کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8000541 1516274 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ characterization of the nitridation of dysprosium during mechanochemical processing
ترجمه فارسی عنوان
توصیف موضعی نیتروژن دیسپروسیوم در طی پردازش مکانیکمی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
Processing of advanced nitride ceramics traditionally requires long durations at high temperatures and, in some cases, in hazardous atmospheres. In this study, dysprosium mononitride (DyN) was rapidly formed from elemental dysprosium in a closed system at ambient temperatures. An experimental procedure was developed to quantify the progress of the nitridation reaction during mechanochemical processing in a high energy planetary ball mill (HEBM) as a function of milling time and intensity using in situ temperature and pressure measurements, SEM, XRD, and particle size analysis. No intermediate phases were formed. It was found that the creation of fresh dysprosium surfaces dictates the rate of the nitridation reaction, which is a function of milling intensity and the number of milling media. These results show clearly that high purity nitrides can be synthesized with short processing times at low temperatures in a closed system requiring a relatively small processing footprint.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 619, 15 January 2015, Pages 253-261
نویسندگان
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