کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1465431 989693 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal conductivity and dielectric property of hot-pressing sintered AlN–BN ceramic composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Thermal conductivity and dielectric property of hot-pressing sintered AlN–BN ceramic composites
چکیده انگلیسی

A study was conducted of the effects of sintering temperature and CaF2 additives on densification, microstructure, dielectric property and thermal conductivity of AlN–BN composites. Increasing sintering temperature and CaF2 contents help to improve the densification, thermal conductivity, and purification of the grain boundaries. Thermal conductivity value reached 110 W m−1 K−1 for AlN–BN composites with 3 wt.% CaF2 and sintered at 1850 °C. Increasing sintering temperature decreases relative dielectric constant and tan δ. The increase in CaF2 content increases relative dielectric constant and decreases tan δ. Relative dielectric constants values were between 7.29 and 7.64 and dielectric loss tangent values ranged from 6.36 to 7.83 × 10−4 at 1 MHz.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 35, Issue 1, January 2009, Pages 105–109
نویسندگان
, , , ,