Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis

In a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic...

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Autores principales:	Shin KIKUCHI, Kinya NAKAMURA, Hidemasa YAMANO
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2021
Materias:	sodium-cooled fast reactor severe accident eutectic reaction kinetic behavior thermal analysis rate constant Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/7a47531750e4409683687f50e2002f34
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spelling	oai:doaj.org-article:7a47531750e4409683687f50e2002f342021-11-29T06:09:58ZKinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis2187-974510.1299/mej.20-00542https://doaj.org/article/7a47531750e4409683687f50e2002f342021-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/8/4/8_20-00542/_pdf/-char/enhttps://doaj.org/toc/2187-9745In a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic reaction is one of the important phenomena to be considered when evaluating the core disruptive accidents in SFR. In this study, for the first step to obtain the fundamental information on kinetic feature of the B4C-SS eutectic reaction and compare the pervious findings, the thermal analysis using the pellet samples of B4C and Type 316L SS as a different experimental approach was performed up to 1773 K at different heating rates of 2.5-10 K min-1. The differential thermal analysis (DTA) endothermic peaks for the B4C-SS eutectic reaction appeared from 1483K to 1534K and systematically shifted to higher temperatures with increasing heating rate. Based on this kinetic feature, apparent activation energy and pre-exponential factor for the B4C-SS eutectic reaction were determined by Kissinger method. It was found that the kinetic parameters obtained by thermal analysis were comparable to the literature values of the thinning experiment at high temperatures. In addition, the microstructure and element distribution formed in the interdiffusion layer composed of the B4C-SS system were analyzed by the electron probe microanalyzer (EPMA), which can provide key validation data on elemental interdiffusion behavior in the early stage of the eutectic reaction for reflecting the reaction kinetic modeling.Shin KIKUCHIKinya NAKAMURAHidemasa YAMANOThe Japan Society of Mechanical Engineersarticlesodium-cooled fast reactorsevere accidenteutectic reactionkinetic behaviorthermal analysisrate constantMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 8, Iss 4, Pp 20-00542-20-00542 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sodium-cooled fast reactor severe accident eutectic reaction kinetic behavior thermal analysis rate constant Mechanical engineering and machinery TJ1-1570
spellingShingle	sodium-cooled fast reactor severe accident eutectic reaction kinetic behavior thermal analysis rate constant Mechanical engineering and machinery TJ1-1570 Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
description	In a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic reaction is one of the important phenomena to be considered when evaluating the core disruptive accidents in SFR. In this study, for the first step to obtain the fundamental information on kinetic feature of the B4C-SS eutectic reaction and compare the pervious findings, the thermal analysis using the pellet samples of B4C and Type 316L SS as a different experimental approach was performed up to 1773 K at different heating rates of 2.5-10 K min-1. The differential thermal analysis (DTA) endothermic peaks for the B4C-SS eutectic reaction appeared from 1483K to 1534K and systematically shifted to higher temperatures with increasing heating rate. Based on this kinetic feature, apparent activation energy and pre-exponential factor for the B4C-SS eutectic reaction were determined by Kissinger method. It was found that the kinetic parameters obtained by thermal analysis were comparable to the literature values of the thinning experiment at high temperatures. In addition, the microstructure and element distribution formed in the interdiffusion layer composed of the B4C-SS system were analyzed by the electron probe microanalyzer (EPMA), which can provide key validation data on elemental interdiffusion behavior in the early stage of the eutectic reaction for reflecting the reaction kinetic modeling.
format	article
author	Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO
author_facet	Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO
author_sort	Shin KIKUCHI
title	Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
title_short	Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
title_full	Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
title_fullStr	Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
title_full_unstemmed	Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
title_sort	kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
publisher	The Japan Society of Mechanical Engineers
publishDate	2021
url	https://doaj.org/article/7a47531750e4409683687f50e2002f34
work_keys_str_mv	AT shinkikuchi kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis AT kinyanakamura kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis AT hidemasayamano kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis
_version_	1718407595126947840

Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis

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