Atmospheric Plasma Deposition of SiO2 Films for Adhesion Promoting Layers on Titanium

被引:10
|
作者
Kotte, Liliana [1 ]
Haag, Jana [2 ]
Mertens, Tobias [2 ]
Kaskel, Stefan [1 ]
机构
[1] Fraunhofer Inst Mat & Beam Technol IWS, Dept Chem Surface & React Technol, D-01277 Dresden, Germany
[2] IW MS, Airbus Grp Innovat Dept, Dept Metall Technol & Surface Engn, D-81663 Munich, Germany
来源
METALS | 2014年 / 4卷 / 04期
关键词
SiO2; film; AP-PECVD; titanium alloy; adhesion layer; wedge test;
D O I
10.3390/met4040639
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper evaluates the deposition of silica layers at atmospheric pressure as a pretreatment for the structural bonding of titanium (Ti6Al4V, Ti15V3Cr3Sn3Al) in comparison to an anodizing process (NaTESi process). The SiO2 film was deposited using the LARGE plasma source, a linearly extended DC arc plasma source and applying hexamethyldisiloxane (HMDSO) as a precursor. The morphology of the surface was analyzed by means of SEM, while the characterization of the chemical composition of deposited plasma layers was done by XPS and FTIR. The long-term durability of bonded samples was evaluated by means of a wedge test in hot/wet condition. The almost stoichiometric SiO2 film features a good long-term stability and a high bonding strength compared to the films produced with the wet-chemical NaTESi process.
引用
收藏
页码:639 / 646
页数:8
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