喷涂距离对感应耦合等离子体喷涂B<sub>4</sub>C/W涂层结合强度的影响

doi:10.19595/j.cnki.1000-6753.tces.180285

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Abstract B₄C was proposed as a material of in-situ protecting coating to avoid damages like erosion, cracking and particle emission on tungsten tiles of tokamak plasma facing components. This study involved the fabrication and adhesion testing of inductively coupled plasma (ICP) plasma sprayed B₄C coating on tungsten (W) substrate. Coating optimization for B₄C on different spray distances was performed. Adhesion test result reveals the tendency of the coating adhesion strength, which increases along with the increasing spray distance. The adhesion strength of the coating on optimized conditions is 5.32MPa. Coatings characterization was presented with scanning electron microscope (SEM) analysis, which further proves the result of adhesion strength. Phase and composition analyses show that the main phase and chemical composition of the boron carbide coating is not changed after ICP torch treatment.

Key words： Boron carbide inductively coupled plasma thermal spraying adhesion strength

Received: 12 March 2018 Published: 29 March 2019

PACS:

O539

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	Articles by authors
	Zhou Qiujiao
	Zhao Peng
	Guo Qijia
	Li Lin
	Meng Yuedong

Cite this article:

Zhou Qiujiao,Zhao Peng,Guo Qijia等. Effect of Spray Distance to the Adhesion Strength of Inductively Coupled Plasma Sprayed B₄C/W Coating[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1345-1350.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180285 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I6/1345

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