کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440651 | 1398235 | 2017 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and hydrothermal corrosion behavior of NITE-SiC with various sintering additives in LWR coolant environments
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کلمات کلیدی
Liquid phase sintering - اسپری مایع فازMultivariate statistical analysis - تجزیه و تحلیل آماری چند متغیرهHydrothermal corrosion - خوردگی هیدروترمالLight water reactor - رآکتور آب سبکSilicon carbide - سیلیکون کاربیدSTEM, scanning transmission electron microscopy - میکروسکوپ الکترونی عبوری روبشیSintering aid - کمک پخت
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructure and hydrothermal corrosion behavior of NITE-SiC with various sintering additives in LWR coolant environments Microstructure and hydrothermal corrosion behavior of NITE-SiC with various sintering additives in LWR coolant environments](/preview/png/5440651.png)
چکیده انگلیسی
Nano-infiltration and transient eutectic phase (NITE) sintering was developed for fabrication of nuclear grade SiC composites. We produced monolithic SiC ceramics using NITE sintering, as candidates for accident-tolerant fuels in light-water reactors (LWRs). In this work, we exposed three different NITE chemistries (yttria-alumina [YA], ceria-zirconia-alumina [CZA], and yttria-zirconia-alumina [YZA]) to autoclave conditions simulating LWR coolant loops. The YZA was most corrosion resistant, followed by CZA, with YA being worst. High-resolution elemental analysis using scanning transmission electron microscopy (STEM) X-ray mapping combined with multivariate statistical analysis (MVSA) datamining helped explain the differences in corrosion. YA-NITE lost all Al from the corroded region and the ytttria reformed into blocky precipitates. The CZA material lost all Al from the corroded area, and the YZA â which suffered the least corrosion âretained some Al in the corroded region. The results indicate that the YZA-NITE SiC is most resistant to hydrothermal corrosion in the LWR environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 4, April 2017, Pages 1261-1279
Journal: Journal of the European Ceramic Society - Volume 37, Issue 4, April 2017, Pages 1261-1279
نویسندگان
Chad M. Parish, Kurt A. Terrani, Young-Jin Kim, Takaaki Koyanagi, Yutai Katoh,