Effects of Elements Composition on Tribological Properties of PES/Metal Matrix Composite Materials

2013 ◽  
Vol 313-314 ◽  
pp. 188-192
Author(s):  
Zhi Gao Luo ◽  
Jin Li ◽  
Bing Zhao ◽  
Jian Wei Xu
Keyword(s):  
Composite Materials ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tribological Properties ◽  
Metal Matrix ◽  
Friction And Wear ◽  
Plastic Layer ◽  
Test Machine

The friction and wear characteristics of PES/metal matrix composite materials were tested by the ball-disc friction pair of UMT-2 friction and wear test machine. The plastic layer is composed of distinct components. The results showed that: the tribological properties of PES/metal matrix composites were improved significantly after added 5wt % of the LCP. With the increasing of PTFE the PES/metal matrix composite material friction coefficient and wear rate were decreasing when the load of 10N and rotating speed of 400rmp. But the friction coefficient and wear rate increased when the mass fraction of PTFE more than 22 wt %. The tribological properties were the best when the PTFE content was 18 wt % to 25 wt % in the plastic layer.

scholarly journals Tribological Properties of Al-Based Composites Reinforced with Fullerene Soot

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6438
Author(s):  
Firuz Yunusov ◽  
Tatiana V. Larionova ◽  
Oleg Tolochko ◽  
Alexander D. Breki
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Composite Materials ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Pure Aluminum ◽  
Fullerene Soot ◽  
Scanning Electron

Aluminum-based composite materials reinforced with fullerene soot, which is a mixture of fullerene and amorphous carbon, are promising materials for friction and wear applications. Composite materials: aluminum with 2% fullerene soot (f.s) and Al with 2% f.s and 2% Cu were obtained via mechanical milling followed by hot pressing. The tribological properties (friction and wear) of the listed composites were investigated and compared with the results for pure aluminum obtained under similar conditions. It has been shown that the addition of fullerene soot reduces the friction coefficient by 25%. At additional alloying with copper, the friction coefficient decreased by 35% in comparison with pure aluminum and also lad to a decrease in friction fluctuations. The wear rate of composite Al with 2% f.s decreased twice in comparison with that of pure aluminum, and with additional alloying it decreased 2.5 times. The morphology of the wear surfaces was investigated by scanning electron microscopy (SEM). The influence of fullerene soot and additional alloying on the wear mechanism was shown.

scholarly journals Investigation of Wear Properties of Microtitanium and CNT Particulates Reinforced Copper Hybrid Metal Matrix Composite

2021 ◽  
Vol 9 (12) ◽  
pp. 959-968
Author(s):  
Meghashree .K. A
Keyword(s):  
Composite Materials ◽  
Wear Rate ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Copper Alloy ◽  
Composite Structures ◽  
Wear Behavior ◽  
Pure Copper ◽  
Hybrid Metal Matrix Composite

Abstract: Current engineering applications require materials that are stronger, lighter, and less expensive. Substituting composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials. In the recent days, there is a huge demand for a lightweight material such as composites seems to be a promising solution to this arising demand. These materials have gained attention due to their applications in the field of automotive, aerospace, sports goods, medicines, and household appliances. This study represents the work done by various researchers and their methodologies. In contrast with most metallic materials, copper alloy has many remarkable properties, such as its excellent electrical and thermal conductivities, good strength, and formability, having outstanding resistance to corrosion and fatigue, and others. Due to their excellent properties, copper alloy is widely used in electrical, automotive, architecture, petrochemicals, transportation, and marine industry. In this work the different percentages of CNT and MicroTitanium are reinforced with pure Copper and are studied. The current work investigated the influence of the CNT and MicroTitanium on the wear behavior (tribological behavior) of developed hybrid metal matrix composite. The conventional liquid stir casting technique will be used for the fabrication of the composite materials. The composite was produced considering combination of0.5, 1, 1.5 percentages of CNT and 1, 3, 5 percentages of Micro-Titanium. The specimens were prepared as per ASTM standard size by turning and facing operations to conduct wear test. The specimens for investigation of wear were tested using pin on disk apparatus. Through the results, it is concluded that the hybrid MMC obtained has got better reduction in wear rate. The inclusion of CNT has played a major role in reducing the wear rate and addition of micro titanium has decreased the wear rate to some extent Keywords: Wear, Copper, Micro titanium, CNT, MMC

Tribological properties of metal-matrix composite materials reinforced by superelastic hard carbon particles

2016 ◽  
Vol 2016 (5) ◽  
pp. 413-418
Author(s):  
I. N. Ushakova ◽  
E. I. Drozdova ◽  
O. P. Chernogorova ◽  
V. M. Blinov ◽  
E. A. Ekimov
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tribological Properties ◽  
Metal Matrix ◽  
Hard Carbon ◽  
Carbon Particles

scholarly journals High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

2021 ◽  
Vol 11 (5) ◽  
pp. 2426
Author(s):  
Vladimir Promakhov ◽  
Alexey Matveev ◽  
Nikita Schulz ◽  
Mikhail Grigoriev ◽  
Andrey Olisov ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Average Particle Size ◽  
Synthesis Process ◽  
Average Particle ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy.

Friction and Wear Behaviors of Solid Lubricants/Polyimide Composites in Liquid Mediums

2010 ◽  
Vol 654-656 ◽  
pp. 2763-2766 ◽  
Author(s):  
Li Wen Mu ◽  
Xin Feng ◽  
Yi Jun Shi ◽  
Huai Yuan Wang ◽  
Xiao Hua Lu
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Tribological Properties ◽  
Alkaline Solution ◽  
Dry Friction ◽  
Friction And Wear ◽  
Solid Lubricants ◽  
Polyimide Composites ◽  
Inorganic Fillers ◽  
Ptfe Composites

The tribological properties of polyimide (PI) composites reinforced with graphite or MoS2 sliding in liquid alkali and water as well as dry friction were investigated using a ring-on-ring tester. The results show that the friction coefficient (μ) and wear rate (W) for both graphite/PI and MoS2/PI composites in different liquid mediums are μdry>μwater >μalkali and Wwater>Wdry >Walkali. Results also indicate that the friction coefficient and wear rate of the PI composites filled with different solid lubricants are μMoS2 >μgraphite and W MoS2 >Wgraphite in different liquid mediums. In addition, the hydrophobic inorganic fillers are fit for the reinforcement of polymer-based composites sliding in liquid mediums. It is also concluded from the authors’ work that the wear rate and friction coefficient of polymer-based (such as PI, PTFE) composites in the alkali lubricated conditions is lowest among all the friction conditions. This may be attributed to the ionic hydration in the alkaline solution.

Metal Matrix Composite Materials Today

JOM ◽  
1985 ◽  
Vol 37 (6) ◽  
pp. 43-43 ◽  
Author(s):  
Jacques E. Schoutens
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix
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