کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1622851 | 1516403 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of strontium gallate additions on sintering behavior and electrical conductivity of samaria-doped ceria
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of strontium gallate additions on sintering behavior and electrical conductivity of samaria-doped ceria Effects of strontium gallate additions on sintering behavior and electrical conductivity of samaria-doped ceria](/preview/png/1622851.png)
چکیده انگلیسی
The densification behavior and electrical conductivity of Ce0.8Sm0.2O1.9 ceramics were investigated with the strontium gallate concentration ranging from 0 to 5 mol%. The sintered density was found to increase rapidly up to 0.5 mol% Sr2Ga2O5, and then to decrease with further additions. Dense Ce0.8Sm0.2O1.9 ceramics with 97% of the theoretical density could be obtained for 0.5 mol% Sr2Ga2O5-added specimen sintered at 1250 °C for 5 h, whereas pure Ce0.8Sm0.2O1.9 ceramics needed to be sintered at 1550 °C in order to obtain an equivalent theoretical density. Electrical conductivity was measured as a function of dopant content, over the temperature range of 350-550 °C in air. Total conductivity of 0.5 mol% Sr2Ga2O5-added specimen showed the maximum conductivity of 1.91 Ã 10â2 Ωâ1 cmâ1 at 500 °C. The addition of strontium gallate was found to promote the sintering properties and electrical conductivities of Sm2O3-doped CeO2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 474, Issues 1â2, 17 April 2009, Pages 219-222
Journal: Journal of Alloys and Compounds - Volume 474, Issues 1â2, 17 April 2009, Pages 219-222
نویسندگان
Joo-Sin Lee, Kwang-Hoon Choi, Min-Woo Park, Yong-Gyu Choi, Ji-Hun Mun,