کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7894808 | 1509992 | 2016 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Failure mechanisms in Pt-Rhx thermocouple sensors caused by gaseous phosphorous species
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Failure mechanisms in Pt-Rhx thermocouple sensors caused by gaseous phosphorous species Failure mechanisms in Pt-Rhx thermocouple sensors caused by gaseous phosphorous species](/preview/png/7894808.png)
چکیده انگلیسی
Interactions between Pt-Rh sensor alloys and P-containing gas in an environment simulating a carbon feedstock gasification process were investigated. A series of exposure tests revealed materials failure through two distinct P diffusion mechanisms, depending on Rh concentrations; intergranular diffusion in low Rh alloys and intragranular diffusion in high Rh alloys. Upon exposure, P rapidly migrated into the alloys, lowering the melting temperature of the alloys and/or forming intermediate phases with Rh at grain boundaries or within grains. The failure mechanisms of Pt-Rh alloys by P-bearing gas in the conditions studied are proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 103, February 2016, Pages 30-41
Journal: Corrosion Science - Volume 103, February 2016, Pages 30-41
نویسندگان
Anna Nakano, James Bennett, Jinichiro Nakano,