真空等离子喷涂碳化硼涂层制备与抗激光辐照性能研究

无机材料学报

• 研究论文 • 上一篇

真空等离子喷涂碳化硼涂层制备与抗激光辐照性能研究

郑学斌; 季珩; 黄静琪; 曾毅; 丁传贤

中国科学院上海硅酸盐研究所, 上海 200050

收稿日期:2004-11-10 修回日期:2004-12-10 出版日期:2005-11-20 网络出版日期:2005-11-20

Preparation and Laser Ablation Test of Vacuum Plasma Sprayed Boron Carbide Coatings

ZHENG Xue-Bin; JI Heng; HUANG Jing-Qi; ZENG Yi; DING Chuan-Xian

Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050, China

Received:2004-11-10 Revised:2004-12-10 Published:2005-11-20 Online:2005-11-20

摘要/Abstract

摘要： 采用真空等离子喷涂技术,在不锈钢基体上制备碳化硼(B₄C)涂层,并对涂层的组成、结构、沉积效率、结合强度以及抗激光辐照性能进行了表征.结果显示,真空等离子喷涂B₄C涂层中没有出现明显的B₂O₃相,表明真空等离子喷涂可有效避免B₄C氧化现象.采用较细的粉末制备的B₄C涂层较为致密.较高的喷涂功率和较大的氢气流量,有助于改善粉末的熔化程度,从而提高涂层的沉积效率和结合强度.在适宜的工艺参数下,涂层的沉积效率与结合强度可分别达72%与49MPa.激光辐照试验表明,在不锈钢表面沉积B₄C涂层,可以明显改善其抗激光辐照性能.

关键词: 碳化硼涂层, 真空等离子喷涂, 激光辐照

Abstract: Boron carbide coatings were deposited onto stainless steel via vacuum plasma spraying (VPS), and then their phase composition, microstructure, deposition efficiency, bonding strength and laser
irradiation resistance were examined. Results obtained show that there is no distinct B₂O₃ in the VPS B₄C coating, indicating that the oxidation of B₄C can be avoided during VPS process.
The denser B₄C coating can be obtained by using the finer original powder. Deposition efficiencies and bonding strengths of coatings are higher in the cases of higher spray power and higher H₂
flow due to the better melting condition of powders during spray process. Under appropriate spray parameters, the deposition efficiency and bonding strength of VPS B₄C coating can be high to
72% and 49MPa respectively. Laser ablation test shows that the laser irradiation resistance is improved significantly for stainless steel after being deposited by B₄C coating.

Key words: Boron carbide coating, vacuum plasma spray, laser ablation

中图分类号:

TG174

郑学斌,季珩,黄静琪,曾毅,丁传贤. 真空等离子喷涂碳化硼涂层制备与抗激光辐照性能研究[J]. 无机材料学报.

ZHENG Xue-Bin,JI Heng,HUANG Jing-Qi,ZENG Yi,DING Chuan-Xian. Preparation and Laser Ablation Test of Vacuum Plasma Sprayed Boron Carbide Coatings[J]. Journal of Inorganic Materials.

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真空等离子喷涂碳化硼涂层制备与抗激光辐照性能研究

Preparation and Laser Ablation Test of Vacuum Plasma Sprayed Boron Carbide Coatings

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