کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1462925 989640 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Boron suboxide materials with Co sintering additives
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Boron suboxide materials with Co sintering additives
چکیده انگلیسی

Difficulties in the densification as well as the low fracture toughness of the resulting polycrystalline materials have delayed the application of boron suboxide as a superhard material in industry. In this work, efforts have been made to improve the fracture toughness and densification of these materials by incorporating suitable secondary phases. Possible candidates are transition metals, which form under sintering conditions a liquid phase. Therefore different Co containing additives (metal, oxide and boride) were used to densify boron suboxide powder by hot pressing. The resulting materials have a significantly improved fracture toughness (3.9 MPa m1/2) and still high hardness (HV5 = 28.6 GPa.).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 36, Issue 6, August 2010, Pages 1767–1771
نویسندگان
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