کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1475255 991113 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
cBN reinforced Y-α-SiAlON composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
cBN reinforced Y-α-SiAlON composites
چکیده انگلیسی

Dense α-Sialon–cBN composites were produced by FAST/SPS–sintering at 1575–1625 °C. The hardness of the materials increases only up to 21 GPa for materials with 10 vol.% cBN. On the other hand the fracture toughness increases up to nearly 8 MPa m0.5 with 30 vol.% cBN. The reason for the increase in fracture toughness is attributed to crack deflection at cBN grains due to the weak bonding of the grains in the matrix. The weak interfaces are also responsible for the moderate increase in hardness. Detailed investigation of the interface between cBN and the matrix was carried out by TEM.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 33, Issue 11, October 2013, Pages 2191–2198
نویسندگان
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