کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8948578 1645669 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly transparent LiAlON ceramic prepared by reaction sintering and post hot isostatic pressing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Highly transparent LiAlON ceramic prepared by reaction sintering and post hot isostatic pressing
چکیده انگلیسی
A highly transparent polycrystalline LiAlON ceramic with the size of Φ57 mm × 6 mm was successfully fabricated by reaction sintering (1750 °C, 20 h) and post hot isostatic pressing (HIP, 1850 °C, 3 h, 180 MPa) using AlN, Al2O3 and LiAl5O8 powders. Related mechanism on the reaction sintering and densification were studied via the analysis of phase and microstructural evolution. High transparency was resulted from full elimination of Al2O3 secondary phase and residual pores. It has excellent optical transparency from the visible to middle infrared (IR) bands with the maximum transmittance of ∼ 85.5%. The flexural strength and Vikers hardness reach ∼303 MPa and ∼15.0 GPa, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 15, December 2018, Pages 5252-5256
نویسندگان
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