کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1462868 989639 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Densification, microstructure and mechanical properties of SiO2–cBN composites by spark plasma sintering
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Densification, microstructure and mechanical properties of SiO2–cBN composites by spark plasma sintering
چکیده انگلیسی

SiO2–cBN composites were consolidated by spark plasma sintering at 1473–1973 K. The effects of cBN content and sintering temperature on the relative density, phase transformation, microstructure and mechanical properties of the SiO2–cBN composites were investigated. The relative density of the SiO2–cBN composites increased with increasing SiO2 content. The phase transformation of cBN to hBN in SiO2–cBN composites was identified at 1973 K, showing the highest transformation temperature in cBN-containing composites. The SiO2–20 vol% cBN composites sintered at 1673 K showed the highest hardness and fracture toughness of 12.5 GPa and 1.5 MPa m1/2, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 38, Issue 1, January 2012, Pages 351–356
نویسندگان
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