کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898044 | 1510130 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical and thermo-mechanical properties of fine-grained transparent yttria ceramics fabricated by hot-press sintering for infrared window applications
ترجمه فارسی عنوان
خواص نوری و حرارتی خواص سرامیک شفاف یتریای شفاف، ساخته شده بوسیله داغ کردن پرس برای استفاده از پنجره های مادون قرمز
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
In this work, highly transparent yttria ceramics Φâ¯=â¯55â¯mm in size were fabricated by a hot-pressing method with 1 at.% ZrO2 or 12 at.% La2O3 as a sintering additive. For a 4-mm-thick specimen doped with ZrO2, the in-line transmittance reaches 71.1% at 400â¯nm and 80.9% at 1100â¯nm, and the transmittance of the La2O3-doped specimen is comparable to that of the ZrO2-doped specimen. By means of the relatively low sintering temperature of 1600â¯Â°C, the present samples exhibited very fine microstructures (<2â¯Î¼m), giving rise to excellent mechanical strength levels (â¼200â¯MPa). With regard to the 1 at.% ZrO2-doped specimen, the combination of high strength and high thermal conductivity (â¼10 W/mâ¯K) substantially improved parameters related to the thermal shock resistance. The results of this study indicate that the hot-pressed transparent yttria ceramic doped with 1 at.% ZrO2 is optically, mechanically, and thermally suitable for high-temperature IR window applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 11, September 2018, Pages 4064-4069
Journal: Journal of the European Ceramic Society - Volume 38, Issue 11, September 2018, Pages 4064-4069
نویسندگان
Lin Gan, Young-Jo Park, Lin-Lin Zhu, Ha-Neul Kim, Jae-Woong Ko, Hai-Doo Kim,