首页|Study on frictional behavior of SiCf/SiC composite clad tube clamping condition under nuclear irradiation

Study on frictional behavior of SiCf/SiC composite clad tube clamping condition under nuclear irradiation

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Silicon carbide fiber reinforced silicon carbide matrix(SiCf/SiC)composite is the key cladding material of nuclear fuel,which determines the safety and reliability of nuclear fuel storage and transportation.The replacement of its storage and transportation scenario needs to be completed by the manipulator,but the application of SiCf/SiC wear,fracture,and nuclear leakage in the snatching process of brittle-flexible-rigid contact in the irradiation environment has been seriously restricted due to unclear understanding of the damage mechanism.Therefore,the effects of irradiation dose and clamping load on the friction characteristics of the contact interface between SiCf/SiC clad tube are studied in this paper,and the effects of irradiation parameters and clamping force on the static friction coefficient of the contact interface between the clad tube and flexible nitrile are obtained.Based on the Greenwood-Williamson tribological model,a numerical model of the shape and structure of the contact micro-convex at the micro-scale of the clamping interface is constructed by introducing the multi-surface integral,and finally verified by experiments.The research results show that there is a unique"irradiation suppression zone"under the clamping condition of SiCf/SiC cladding tube under the nuclear irradiation environment,and the growth of static friction coefficient slows down until stagnates after irradiation reaches a certain extent(600 kGy),and there will be a decline when the irradiation dose continues to increase,among which the clamping force of 15.2 N within the irradiation interval of 1,000 kGy can meet the safety of nuclear environment operation.The results of this paper can provide an important theoretical basis and application guidance for the safe operation of SiCf/SiC cladding tubes in the storage and transportation clamping process.

SiCf/SiC Clad tubenuclear irradiation conditionsGreenwood-Williamson tribological modelmulti-surface integral

Chenglong XIAO、Liangliang SHEN、Tianqi ZHU、Jianbo TANG、Ximing XIE、Xinyu FAN、Jian XU、Zhiying REN

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School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China

Engineering Laboratory of Advanced Energy Materials,Ningbo Institute of Material Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China

State Key Laboratory of Fine Chemicals,Liaoning High-Performance Polymer Engineering Research Center,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China

School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China

School of Computer Science and Technology,Shandong University,Qingdao 266237,China

Aviation Industry Corporation of China,Ltd.,Beijing 100028,China

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National Natural Science Foundation of Chinathe"Ningbo 3315 Plan Innovation Team"National Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesNational Key R&D Program of China

520755262017A-28-C91860204DUT22LAB6052018YFB1107500

2024

10.1007/s40544-023-0805-z

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CSTPCDEI
ISSN：2223-7690
年,卷(期)：2024.12(5)
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