EFFECT OF POWDER TYPE ON STRUCTURE AND PROPERTIES OF CARBON BASED COATINGS

被引：0
|
作者：
Marcinauskas, L. [1 ,2 ]
Kezelis, R. [1 ]
Kavaliauskas, Z. [1 ]
Zunda, A. [3 ]
Milieska, M. [1 ]
机构：
[1] Lithuanian Energy Inst, Breslaujos 3, LT-44403 Kaunas, Lithuania
[2] Kaunas Univ Technol, Studentu 50, LT-51368 Kaunas, Lithuania
[3] Aleksandras Stulginskis Univ, Studentu 15, LT-53362 Akademija, Kaunas Distr, Lithuania
来源：
ROMANIAN JOURNAL OF PHYSICS | 2017年 / 62卷 / 5-6期
关键词：
Atmospheric plasma spraying; carbon composite; microstructure; microhardness; GRAPHITE OXIDE; ALUMINA COATINGS; PYROLYTIC CARBON; PLASMA; MICROSTRUCTURE; WEAR; CAPACITORS; RESISTANCE; PARTICLES; ELECTRODE;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Carbon composite coatings were prepared using an atmospheric pressure plasma spraying on the steel substrate from different feedstock powders. The effect of the various powder types on the surface morphology and structure of the sprayed coatings was investigated. The prepared coatings surface morphology depends on the initial powder morphology and chemical composition. The coating sprayed from the P1 powder (wood waste) demonstrated the lowest surface roughness value. The oxygen concentration in the sprayed coatings increased. The highest oxidation was observed when the graphite flake-like powder (P4) were used. The C/O atomic ratio in the P3 coating (deposited using activated carbon powder), decreased 5.4 times, while the Cu concentration increased 2.4 times compared to the initial powder. The highest specific surface area (similar to 25.94 m(2)/g) and microhardness value (202 HV) were observed for the coating deposited using P1 powder.
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页数：13
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