Effect of graphene platelets on tribological properties of boron carbide ceramic composites

2017 ◽  
Vol 65 ◽  
pp. 57-63 ◽  
Author(s):  
Richard Sedlák ◽  
Alexandra Kovalčíková ◽  
Ján Balko ◽  
Pawel Rutkowski ◽  
Aleksandra Dubiel ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Tribological Properties ◽  
Ceramic Composites ◽  
Graphene Platelets

scholarly journals Investigation of graphite effect on the mechanical and tribological properties of Al 7075-SiC-graphite hybrid metal matrix composites

2020 ◽  
Vol 37 (1−2) ◽  
Author(s):  
SRIDHAR ATLA ◽  
Prasanna Lakshmi Kaujala
Keyword(s):  
Silicon Carbide ◽  
Powder Metallurgy ◽  
Tribological Properties ◽  
Metal Matrix ◽  
Ceramic Composites ◽  
Wear Behaviour ◽  
Wear Loss ◽  
Mechanical And Tribological Properties ◽  
Al 7075 ◽  
Pin On Disc

The aluminium metal matrix composite reinforced with ceramic material of Silicon carbide (SiC) has good mechanical properties. However, aluminium based ceramic composites require improvements in their lubrication and tribological properties. In this study an attempt is made in the development of a new material through powder metallurgy technique by the addition of Graphite, which acts as a solid lubricant. This work investigated the influence of graphite on the wear behaviour of Al 7075/SiC /X wt.% graphite(X=0, 5 and 10) hybrid composite. The investigation reveals the effectiveness of incorporation of graphite in the composite for gaining wear reduction. The Al 7075 (aluminium alloy 7075) reinforced with SiC –graphite were investigated. The composites were fabricated using powder metallurgy route. The microstructures, material combination, wear and friction properties were analysed by scanning electron microscopy, XRD, and pin-on-disc wear tester. The newly developed aluminium composite has significant improvements in tribological properties with a combination of 5% Silicon carbide (SiC) and 5% Graphite. The test reveals that sliding distance of 1000 m and sliding speed of 1.5 m/s with applied load of 5 N result in minimum wear loss of 0.01062g and coefficient of friction as 0.1278.

Combustion synthesis and tribological properties of SiALON-based ceramic composites

2010 ◽  
Vol 19 (3) ◽  
pp. 172-177 ◽  
Author(s):  
Y. S. Zhao ◽  
Y. Yang ◽  
J. T. Li ◽  
I. P. Borovinskaya ◽  
K. L. Smirnov
Keyword(s):  
Combustion Synthesis ◽  
Tribological Properties ◽  
Ceramic Composites

scholarly journals Reactive sintering of B4c-TiB2 composites from B4 and TiO2 precursors

2020 ◽  
Vol 14 (4) ◽  
pp. 329-335
Author(s):  
Pavol Svec ◽  
Zuzana Gábrisová ◽  
Alena Brusilová
Keyword(s):  
Fracture Toughness ◽  
Boron Carbide ◽  
Titanium Diboride ◽  
Sintering Temperature ◽  
Secondary Phase ◽  
Ceramic Composites ◽  
Reactive Sintering ◽  
Different Temperatures ◽  
Carbide Matrix

The effect of sintering temperature in the interval from 1775 to 1850?C on the density, microstructure, hardness and fracture toughness of ceramic composites consisting of a boron carbide matrix and titanium diboride secondary phase was studied. The composites were hot pressed using in situ reaction between boron carbide and 40 wt.% of titanium dioxide additive. The samples were hot pressed at different temperatures but for the constant time of 60min, under the pressure of 35MPa in vacuum of 10 Pa. Both Vickers hardness and fracture toughness of the composites increased with the sintering temperature.Maximal hardness of 29.8GPa and fracture toughness of 6.9MPa?m1/2 were achieved for the composite with 29.6 vol.% of titanium diboride secondary phase sintered at the highest sintering temperature of 1850?C.

Preparation, mechanical and tribological properties of WC-Al2O3 composite doped with graphene platelets

2020 ◽  
Vol 46 (8) ◽  
pp. 10457-10468 ◽  
Author(s):  
Xiaoxiao Zhang ◽  
Shigen Zhu ◽  
Tianyu Shi ◽  
Hao Ding ◽  
Yunfeng Bai ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Mechanical And Tribological Properties ◽  
Al2o3 Composite ◽  
Graphene Platelets

Micro-Tribological Behavior of Boron Carbide Self-Mated Pairs

2007 ◽  
Vol 336-338 ◽  
pp. 1740-1742
Author(s):  
Fang Wu ◽  
Sheng Ming Xu ◽  
Song Zhe Chen ◽  
Lin Yan Li ◽  
Gang Xu ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Boron Carbide ◽  
Tribological Properties ◽  
Tribological Behavior ◽  
Normal Load ◽  
The Self ◽  
Sliding Velocity ◽  
Oxidation Treatment ◽  
Sliding Distance

Tribological behavior of B4C-SiC self-mated pairs was studied, and pre-oxidation treatment was adopted to improve the tribological properties of B4C-SiC. At the same SiC content, self-friction coefficient of B4C-SiC decreases with the increase of sliding distance, normal load, and sliding velocity; while the increasing of SiC content leads to increase of both self-friction coefficient and ware rate, which was determined to be within the range of 0.8×10-6~5.8×10-6 mm3·N-1·m-1. Pre-oxidation treatment of the B4C-SiC resulted in the formation of B2O3/H3BO3 lubricant layers, which effectively reduced the self-friction coefficient.

Tribological properties of TiB2 and TiB2–MoSi2 ceramic composites

2006 ◽  
Vol 26 (7) ◽  
pp. 1293-1300 ◽  
Author(s):  
T.S.R.Ch. Murthy ◽  
Bikramjit Basu ◽  
Amitesh Srivastava ◽  
R. Balasubramaniam ◽  
A.K. Suri
Keyword(s):  
Tribological Properties ◽  
Ceramic Composites

Tribological properties of boron carbide in sliding against WC ball

2015 ◽  
Vol 51 ◽  
pp. 110-117 ◽  
Author(s):  
J.K. Sonber ◽  
P.K. Limaye ◽  
T.S.R.Ch. Murthy ◽  
K. Sairam ◽  
A. Nagaraj ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Tribological Properties
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