کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574298 | 1514710 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel BN-MAS system composite ceramics with greatly improved mechanical properties prepared by low temperature hot-pressing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel BN-MAS system composite ceramics with greatly improved mechanical properties prepared by low temperature hot-pressing A novel BN-MAS system composite ceramics with greatly improved mechanical properties prepared by low temperature hot-pressing](/preview/png/1574298.png)
چکیده انگلیسی
A novel composite ceramics with excellent mechanical properties was fabricated by means of low temperature hot-pressing using hexagonal boron nitride (h-BN) and magnesium aluminum silicate (MAS) as raw materials. The influences of starting MAS content on the microstructural evolution and mechanical properties of the composites were investigated. The results indicate that the effective enhancement of relative density of composites has been achieved, which shows that MAS is an effective liquid-phase sintering aid during the hot-pressing. MAS also can improve the structural ordering of h-BN flakes. On the other hand, h-BN exhibits significant inhibiting effect on the crystallization of α-Cordierite. Furthermore, h-BN flakes with layered structure can play a role in strengthening the MAS matrix. So h-BN and MAS are considered to be co-enhanced by each other, resulting in better sintering ability and the mechanical properties of composite ceramics are better than that of both h-BN and MAS. Composite ceramics incorporated with 50 wt% MAS exhibits the highest bending strength and fracture toughness of 213±25 MPa and 2.49±0.35 MPa m1/2, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 633, 1 May 2015, Pages 194-199
Journal: Materials Science and Engineering: A - Volume 633, 1 May 2015, Pages 194-199
نویسندگان
Delong Cai, Zhihua Yang, Xiaoming Duan, Bin Liang, Qian Li, Dechang Jia, Yu Zhou,