Slurry Erosion and Abrasion of Metal-Ceramic Coatings

2008 ◽  
pp. 19-19-25
Author(s):  
AS Alberto ◽  
KS Diane ◽  
KS Vijay ◽  
AS Gordon
Keyword(s):  
Ceramic Coatings ◽  
Slurry Erosion ◽  
Metal Ceramic

THEORETICAL GROUNDS FOR FORMATION OF HIGH QUALITY METAL-CERAMIC COATINGS BY CARBOVIBRATING ELECTRODE ARC STRENGTHENING

2020 ◽  
pp. 2-11
Author(s):  
N. V. TITOV ◽  
◽  
A. V. KOLOMEYCHENKO ◽  
V. L. BASINYUK ◽  
I. N. KRAVCHENKO ◽  
...  
Keyword(s):  
Ceramic Coatings ◽  
High Quality ◽  
Metal Ceramic ◽  
Quality Metal

scholarly journals Advanced Functional Metal-Ceramic and Ceramic Coatings Deposited by Low-Pressure Cold Spraying: A Review

Coatings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1044
Author(s):  
Marcin Winnicki
Keyword(s):  
Cold Spray ◽  
Metal Matrix ◽  
Sol Gel ◽  
Low Pressure ◽  
Ceramic Coatings ◽  
Recent Analysis ◽  
Powder Preparation ◽  
Ceramic Particles ◽  
All Ceramic ◽  
Metal Ceramic

Based on the recent analysis of various databases, cold spray (CS), the newest method among thermal spraying technologies, has received the unabated attention of hundreds of researchers continuously since its invention in the 1980s. The significance of CS lies in the low process temperature, which usually ensures compressive residual stresses and allows for the formation of coatings on a thermally sensitive substrate. This paper concerns the low-pressure cold spray (LPCS) variant employed for forming metal matrix composites (MMCs) with high ceramic contents and all-ceramic coatings. At the very beginning, the influence of LPCS process parameters on deposition efficiency (DE) is analysed. In the next part, the most useful feedstock powder preparation techniques for LCPS are presented. Due to the combination of bottom-up powder production methods (e.g., sol-gel (SG)) with LCPS, the metal matrix that works as a binder for ceramic particles in MMC coatings can be removed, resulting in all-ceramic coatings. Furthermore, with optimization of spraying parameters, it is possible to predict and control phase transformation in the feedstock material. Further in the paper, differences in the bonding mechanism of metal–ceramic mixtures and ceramic particles are presented. The properties and applications of various MMC and ceramic coatings are also discussed. Finally, the exemplary direction of CS development is suggested.

Increased Resistance to Mechanical Shock of Metallic Materials by Metal-Ceramic Surface Coatings

2015 ◽  
Vol 638 ◽  
pp. 316-321
Author(s):  
Carmen Biniuc ◽  
Bogdan Istrate ◽  
Corneliu Munteanu ◽  
Luca Dorin
Keyword(s):  
Mechanical Properties ◽  
Surface Engineering ◽  
Microscopic Analysis ◽  
Scratch Test ◽  
Ceramic Coatings ◽  
Experimental Results ◽  
Ceramic Surface ◽  
Mechanical Shock ◽  
Metal Powders ◽  
Metal Ceramic

In the last time, material engineering in lately developed the design and processing technology of materials in well-defined goals. Thus, they designed and achieved the metal alloys for use in strong fields required mechanical shock using methods of surface engineering. In this direction, we have developed very superficial deposition techniques by thermal spray of ceramic and metal powders, both for hard coating and to protect surfaces in refractory environments. In a controlled manner, can form new structures, which leads to an improvement in the tribological properties of the coatings obtained. In this paper are described experimental results obtained after the tests of resistance to mechanical shock testing of metal-ceramic coatings on forged titanium support. We analyzed the behavior of thermal deposited layers of ZrO2 stabilized with 8% Y2O3 and Al2O3 after applying mechanical shock test and scratch test. These materials were analyzed in terms of structural, of mechanical properties and adhesion of the surface layers using electron microscopy, X-ray diffraction, Charpy device, CETR UMT-2 tribometer. The results showed that the materials investigated have a stratified columnar structure, shows lamellar and intra - lamellar cracks and pores formed between neighbor "splat's". From microscopic analysis, after these tests, it was observed that the thermal deposited layers were not separated and there was a fingerprint on their surface. The experimental results show that the new structures obtained presents much better mechanical properties compared to the material, forged titanium, no deposit.

scholarly journals Forevacuum electron beam plasma synthesis of multilayer metal–ceramic coatings

2019 ◽  
Vol 1145 ◽  
pp. 012011
Author(s):  
Yu G Yushkov ◽  
A S Klimov ◽  
E M Oks ◽  
A V Tyunkov ◽  
D B Zolotukhin
Keyword(s):  
Electron Beam ◽  
Ceramic Coatings ◽  
Plasma Synthesis ◽  
Beam Plasma ◽  
Metal Ceramic ◽  
Electron Beam Plasma ◽  
Multilayer Metal
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