کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7210258 1469204 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Guidance Evolution Mechanism of Nickel Oxalate Micro- structure for Formation of Polycrystalline Nickel Nano-fibers
ترجمه فارسی عنوان
مکانیسم تکامل هدایت کننده میکرو ساختار نیکل اگزالات برای تشکیل نانولوله های پلی کریستالی نیکل
کلمات کلیدی
نیکل الیاف، مکانیسم تکامل هدایت، سنتز شیمیایی، تجزیه حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
چکیده انگلیسی
Nickel oxalate nano-fibers were controllably synthesized via a restricted self-assembly growth process in a liquid phase precipitation system. Nickel nano-fibers were prepared by decomposing nickel oxalate under the guidance of fiber micro-structure in Ar gas atmosphere. The characteristics of the samples were measured by X-ray powder diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). Result show that the existence of ammonia changes the growth behavior of nickel oxalate from free self-assembly mode to a restricted one. The nickel oxalate crystal nano-fibers with monoclinic geometry are 100∼200 nm in diameter, and 1∼5 μm in length. The nickel nano-fibers with face-centered cubic geometry are also 100∼200 nm in diameter, and 1∼5 μm in length, and the surface is very rough. Nickel nano-fibers are formed via a process of nucleation, grain growth and aggregation under the guidance of long and narrow space provided by nickel oxalate nano-fibers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 9, September 2017, Pages 2371-2374
نویسندگان
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