کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476093 991141 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical and mechanical properties of Mg-doped sialon composite with La2O3 as additive
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Optical and mechanical properties of Mg-doped sialon composite with La2O3 as additive
چکیده انگلیسی

Using 0.5 wt.% La2O3 as a sintering additive, Mg-doped sialon composite with the maximum infrared transmittance of 50% was fabricated by hot pressing at 1800 °C. The addition of La2O3 significantly promotes the densification process of Mg-doped sialon and the anisotropic growth of β-sialon grains. As a result, the sintered material exhibits high hardness (20.2 GPa), fracture toughness (4.8 MPa m1/2) and flexural strength (664 MPa). Furthermore, the nano-sized glassy phases concentrated at triple junctions have no obviously negative impact on infrared translucency of Mg-doped sialon.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 32, Issue 4, April 2012, Pages 931–935
نویسندگان
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