کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7885882 | 1509784 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain-growth-induced high electrical conductivity in SiC-BN composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
SiC-BN composites were fabricated by conventional hot-pressing from β-SiC and h-BN nanopowders with 2â¯vol% yttria as a sintering additive. Electrical and thermal properties of the composites were investigated as a function of initial BN content. Owing to the nanosize of the starting powders, the grain-growth-assisted N-doping of the SiC lattice was significantly enhanced during liquid-phase sintering, yielding the highest-reported electrical conductivity of ~124 (Ωâ¯cm)â1 for a SiC-4-vol% BN composite. The typical values of electrical resistivity and thermal conductivity of the SiC-4-vol% BN composite at room temperature were 8.1â¯Ãâ¯10â3 Ωâ¯cm and 92.4â¯Wâ¯mâ1 Kâ1, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 14, 1 October 2018, Pages 16394-16399
Journal: Ceramics International - Volume 44, Issue 14, 1 October 2018, Pages 16394-16399
نویسندگان
Rohit Malik, Hyun-Min Kim, Young-Wook Kim, Kwang Joo Kim,