Laser damage resistance of plasma-sprayed alumina and honeycomb skeleton/alumina composite ceramic coatings

2021 ◽  
Author(s):  
Shuang Liu ◽  
Zongjun Tian ◽  
Lida Shen ◽  
Mingbo Qiu ◽  
Deqiao Xie ◽  
...  
Keyword(s):  
Composite Ceramic ◽  
Ceramic Coatings ◽  
Laser Damage ◽  
Damage Resistance ◽  
Alumina Composite ◽  
Plasma Sprayed

High temperature microwave absorbing properties of plasma sprayed La0.6Sr0.4FeO3-δ/MgAl2O4 composite ceramic coatings

2020 ◽  
Vol 46 (5) ◽  
pp. 6168-6173
Author(s):  
Hongyao Jia ◽  
Wancheng Zhou ◽  
Hanyi Nan ◽  
Yuchang Qing ◽  
Fa Luo ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Ceramic ◽  
Ceramic Coatings ◽  
Microwave Absorbing Properties ◽  
Microwave Absorbing ◽  
Plasma Sprayed

Formation mechanism of supersonic plasma-sprayed nanostructured composite ceramic coatings

Vacuum ◽  
2015 ◽  
Vol 117 ◽  
pp. 40-46 ◽  
Author(s):  
Li Lin ◽  
Jia-jie Kang ◽  
Tian-shun Dong ◽  
Guo-lu Li ◽  
Hai-dou Wang ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Composite Ceramic ◽  
Ceramic Coatings ◽  
Nanostructured Composite ◽  
Supersonic Plasma ◽  
Plasma Sprayed

Corrosion Resistance of Plasma Sprayed AT13 Composite Ceramic Coating on Mg

2013 ◽  
Vol 575-576 ◽  
pp. 142-146
Author(s):  
Er Lin Lu ◽  
Yan Chen ◽  
Sheng Lu
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Rate ◽  
Epoxy Resin ◽  
Ceramic Coating ◽  
Composite Coatings ◽  
Composite Ceramic ◽  
Ceramic Coatings ◽  
Corrosion Property ◽  
Electrochemical Tests ◽  
Plasma Sprayed

NiCoCrAlY/AT13 composite coating was prepared by plasma spraying technology on AZ91D substrate and sealed with three different methods. The corrosion resistances of the composite ceramic coatings with and without sealing were evaluated by immersion and electrochemical tests The results show that NiCoCrAlY/AT13 composite ceramic coating represents better corrosion property than single AT13 ceramic coating. The corrosion resistances of NiCoCrAlY/AT13 composite coatings with sealing are superior to that of unsealing coating. Among three sealed coatings, both coatings sealed with paraffin and varnish exhibit better corrosion resistance with corrosion rate of 0.130 g/(m2·h), 0.204 g/(m2·h), and Icorrof 1.754E-7 (A·cm-2), 9.493E-8 (A·cm-2) respectively, while the coating with epoxy resin sealing is relatively the worst one with corrosion rate of 0.744 g/(m2·h) and Icorrof 1.650E-7 (A·cm-2).

Electron microscopy studies of plasma-sprayed materials

1983 ◽  
Vol 41 ◽  
pp. 70-71
Author(s):  
K.R. Subramanian ◽  
A.H. King ◽  
H. Herman
Keyword(s):  
Plasma Spraying ◽  
Substrate Surface ◽  
Flame Temperature ◽  
Ceramic Coatings ◽  
Metallic Substrates ◽  
Hot Plasma ◽  
Almost All ◽  
Plasma Sprayed ◽  
Hostile Environments ◽  
Plasma Spraying Process

Plasma spraying is a technique which is used to apply coatings to metallic substrates for a variety of purposes, including hardfacing, corrosion resistance and thermal barrier applications. Almost all of the applications of this somewhat esoteric fabrication technique involve materials in hostile environments and the integrity of the coatings is of paramount importance: the effects of process variables on such properties as adhesive strength, cohesive strength and hardness of the substrate/coating system, however, are poorly understood.Briefly, the plasma spraying process involves forming a hot plasma jet with a maximum flame temperature of approximately 20,000K and a gas velocity of about 40m/s. Into this jet the coating material is injected, in powder form, so it is heated and projected at the substrate surface. Relatively thick metallic or ceramic coatings may be speedily built up using this technique.

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