首页|聚合物基复合材料表面Y2O3-PF交替涂层的制备及性能

聚合物基复合材料表面Y2O3-PF交替涂层的制备及性能

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采用超音速等离子喷涂及双通道送粉技术,在环氧树脂基复合材料表面制备了高性能氧化钇-酚醛(Y2O3-PF)交替涂层.将Y2O3包覆PF粉末喷涂在基体上生成过渡层,之后交替沉积球形Y2O3粉末和Y2O3包覆PF粉末形成复合交替涂层.结果表明,交替涂层主体由Y2O3包覆PF粉末沉积而成,且涂层与基体结合强度高达26.48 MPa,单次最大结合强度为28.10 MPa,剪切强度高达24.30 MPa.此外,外部Y2O3粒子产生的热传递效应使PF逐渐软化熔融,从而有效避免了高温对分子结构的破坏,促进了沉积过程中树脂的交联与固化.同时,未熔Y2O3粉末形成了喷丸效应,冲刷去除了沉积效果较差的粉末粒子,最终显著改善了交替涂层的组织和性能.
Preparation and Properties of Y2O3-PF Alternating Coating on Polymer Matrix Composite Material Surface
High-performance yttrium oxide-phenolic resin(Y2O3-PF)alternating coating was prepared on epoxy resin-based composite material using supersonic plasma spraying and dual-channel powder feeding technique.Y2O3-coated PF(Y2O3/PF)powder was firstly sprayed onto the substrate,forming a transition layer,and then the spherical Y2O3 powder and Y2O3/PF powder were alternately deposited to form the composite alternating coating.Results show that the alternating coating is mainly composed of deposited Y2O3/PF powder.The bonding strength between coating and substrate is as high as 26.48 MPa with the single-test maximum bonding strength of 28.10 MPa,and shear strength reaches 24.30 MPa.Additionally,the heat transfer effect caused by external Y2O3 particles gradually softens and even melts PF,thus effectively avoiding the damage of high temperature to molecular structure and thereby promoting the crosslinking and curing effects of resin during the deposition process.In the meantime,the unmelted Y2O3 powder results in the shot peening effect,which washes out and eliminates the powder particles with inferior deposition effect,ultimately improving the physical and chemical properties of the alternating coating.

Y2O3-PF alternating coatingepoxy resin composite materialsupersonic plasma sprayingmechanical property

李雪伍、张家毫、冯誉熙、刘明、石甜、王海斗、白宇、王玉

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西安科技大学机械工程学院,陕西西安 710054

西安理工大学材料学院,陕西西安 710048

陆军装甲兵学院装备再制造技术国防科技重点实验室,北京 100072

陆军装甲兵学院机械产品再制造国家工程研究中心,北京 100072

西安交通大学材料科学与工程学院,陕西西安 710049

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Y2O3-PF交替涂层 环氧树脂复合材料 超音速等离子喷涂 力学性能

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China145 ProjectScience and Technology New Star Project of Shaanxi Innovation Capability Support ProgramChina Postdoctoral Science Foundation

5213050952275211520755422021KJXX-382021M693883

2024

10.12442/j.issn.1002-185X.20240014

稀有金属材料与工程
中国有色金属学会,中国材料研究学会,西北有色金属研究院

稀有金属材料与工程

CSTPCD北大核心
影响因子：0.634
ISSN：1002-185X
年,卷(期)：2024.53(10)