کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1524847 1511833 2011 6 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of porous chromium carbides by carburization
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Synthesis of porous chromium carbides by carburization
چکیده انگلیسی

Porous chromium carbide structures have been synthesized through reactive sintering of chromium oxides in carbonaceous reducing environments. The process is simple and can be used to fabricate large size porous structures. It has been characterized that the pores in the porous structure are open in nature and the size of pores in the same porous structure can be controlled within a narrow range. Depending on the processing condition, the porosity in the porous structure was measured to be from 50% to 78%, and pore size varied from 0.5 μm to 3 μm. It has been determined that the porosity in the process was formed primarily due to volume reduction caused by phase transformation from chromium oxides to chromium carbides. It is believed that similar process can be used to form porous structures of other materials as long as a reactive sintering can occur and is accompanied with volume reduction.


► A unique way to fabricate porous ceramic structures with open pores through gaseous-solid reactive sintering.
► Pore dimension and pore density can be controlled over a wide range.
► Fabrication process is simple and feasible for large size porous structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 128, Issues 1–2, 15 July 2011, Pages 181–186
نویسندگان
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