Tribological characteristics of synthesized diamond films on silicon carbide

Wear ◽  
1989 ◽  
Vol 133 (1) ◽  
pp. 73-81 ◽  
Author(s):  
S. Jahanmir ◽  
D.E. Deckman ◽  
L.K. Ives ◽  
A. Feldman ◽  
E. Farabaugh
Keyword(s):  
Silicon Carbide ◽  
Diamond Films ◽  
Tribological Characteristics

Deposition of diamond films on single crystalline silicon carbide substrates

2020 ◽  
Vol 101 ◽  
pp. 107625
Author(s):  
Debarati Mukherjee ◽  
Filipe Oliveira ◽  
Simone Camargo Trippe ◽  
Shlomo Rotter ◽  
Miguel Neto ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Crystalline Silicon ◽  
Diamond Films ◽  
Single Crystalline Silicon ◽  
Single Crystalline

Effect of Multilayer Technology on Surface Properties of Diamond Coated Silicon Carbide with Surface Defects

2012 ◽  
Vol 217-219 ◽  
pp. 1318-1322
Author(s):  
Nai Chao Chen ◽  
Fang Hong Sun
Keyword(s):  
Silicon Carbide ◽  
Surface Properties ◽  
Surface Defects ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Ceramic Substrate ◽  
Mechanical Field ◽  
Surface Polishing ◽  
Hot Filament ◽  
Multilayer Technology

Low surface roughness of diamond films is beneficial for the widespread applications in the mechanical field. But brittle ceramic substrate easily forms surface defects, which can be detrimental for surface properties of diamond films. In this work, multilayer technology combining conventional hot filament chemical vapor deposition (HFCVD) is proposed to eliminate the influence of surface defects in the substrate on diamond films. Then multilayer diamond films are deposited on silicon carbide with surface defects by alternately repeating the processes of diamond films growth and surface polishing. Each layer of multilayer diamond films is evaluated by field emission scanning electron microscope (FE-SEM), surface profilometer and Raman spectrum. The results show that multilayer technology is supposed to be a novel deposition method of improving the surface properties of diamond coated the silicon carbide ceramic substrate with surface defects.

scholarly journals Tribological characteristics of Al/SiC/Gr hybrid composites

2018 ◽  
Vol 183 ◽  
pp. 02001 ◽  
Author(s):  
Sandra Veličković ◽  
Slavica Miladinović ◽  
Blaža Stojanović ◽  
Ružica Nikolić ◽  
Branislav Hadzima ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Hybrid Composites ◽  
High Strength ◽  
Tribological Characteristics ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
The Matrix ◽  
Aluminum Metal Matrix Composites

Metal matrix composites (MMCs) are considered as important engineering materials due to their excellent mechanical, as well as tribological properties. When the metal (or alloy) matrix is reinforced with two or more reinforcements, those composites are the so-called hybrid composites. The aluminum metal matrix composites, reinforced with silicon carbide (SiC) and graphite (Gr), are extensively used due to their high strength and wear resistance. The tribological characteristics of such materials are superior to characteristics of the matrix. This research is presenting influence of the load and the graphite and silicon carbide contents the composites’ wear rate and the friction coefficient.

Deposition and Application of CVD Diamond Films on the Interior-Hole Surface of Silicon Carbide Compacting Dies

2012 ◽  
Vol 499 ◽  
pp. 45-50 ◽  
Author(s):  
Xin Chang Wang ◽  
Bin Shen ◽  
Fang Hong Sun ◽  
Z.M. Zhang ◽  
H.S. Shen ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Surface Quality ◽  
High Surface ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Cvd Diamond ◽  
High Wear Resistance ◽  
X Ray Diffraction ◽  
High Surface Quality ◽  
Hot Filament

Silicon carbide (SiC) is a promising material for fabricating wire compacting dies due to its advantages of light weight and even high wear resistance over the tungsten carbide, which currently is the most popular material used to produce compacting dies. In present study, a layer of CVD diamond film is deposited on the interior-hole surface of compacting dies using the hot filament chemical vapor deposition (HFCVD) method, following by a surface polish process, aiming at further elongating the lifetime of compacting dies and improving the surface quality of produced wires. The characterization of both as-deposited and polished CVD diamond films is employed by scanning electron microscopy (SEM), surface profiler, Raman spectroscopy and X-ray diffraction (XRD) spectroscopy. Furthermore, the performance of as-fabricated CVD diamond coated compacting dies is examined in the real production process. The results exhibit that the as-deposited CVD diamond films are homogeneous and their surface finish is significantly smoothened after the surface polish process. As compared with the conventional compacting dies, the working lifetime of the diamond coated SiC compacting dies can be increased by a factor of above 15 and in the course of processing, copper stranded wires with high surface quality and uniform sectional area can be obtained.

Tribological characteristics of polycrystalline diamond films produced by chemical vapor deposition

1992 ◽  
Vol 7 (7) ◽  
pp. 1769-1777 ◽  
Author(s):  
M. Kohzaki ◽  
K. Higuchi ◽  
S. Noda ◽  
K. Uchida
Keyword(s):  
Friction Coefficient ◽  
Diamond Film ◽  
Room Temperature ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
Diamond Surface ◽  
Tribological Characteristics ◽  
Test Environment ◽  
Friction Coefficients ◽  
Aisi 52100

Effects of surface roughness and crystallinity of polycrystalline diamond films on their tribological characteristics, as well as the effects of test environment, have been investigated. Friction and wear characteristics of the diamond films deposited on sintered SiC disks have been examined with a ball-on-disk tester in the absence of any lubricant. The friction coefficients of polished diamond films against SiC and Si3N4 balls were below 0.10 at room temperature while those of as-deposited films were around 0.20. The specific wear of counterparts on the polished film was five orders of magnitude smaller than on the as-deposited film. The friction coefficient between the polished diamond film and a AISI 52100 steel ball was about 0.20. Transfer of a small amount of AISI 52100 material to the diamond film was observed along the wear track of the polished diamond surface. Diamond films of high quality were more resistant to wear than the ones of low quality. On the other hand, the friction coefficients were not affected by the crystallinity of the diamond films in the present study. Tribological characteristics of the diamond films deteriorated with increasing sliding speed and ambient temperature. At 600 °C in dry N2, the friction coefficient of diamond films against a SiC ball was about 0.8, which was about ten times higher than that at room temperature in air.

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