An investigation on the mechanical and tribological properties of carbon fiber/polyimide composites at elevated temperatures

2017 ◽  
Vol 39 (S2) ◽  
pp. E869-E882 ◽  
Author(s):  
Fengxia Dong ◽  
Guoliang Hou ◽  
Hao Liu ◽  
Liang Liu ◽  
Fengxiang Cao ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Tribological Properties ◽  
Elevated Temperatures ◽  
Mechanical And Tribological Properties ◽  
Polyimide Composites

Hierarchical carbon fiber-SiO2 hybrid/polyimide composites with enhanced thermal, mechanical, and tribological properties

2017 ◽  
Vol 39 (S3) ◽  
pp. E1626-E1634 ◽  
Author(s):  
Beibei Chen ◽  
Xiaofang Li ◽  
Xiang Li ◽  
Yuhan Jia ◽  
Jin Yang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Tribological Properties ◽  
Mechanical And Tribological Properties ◽  
Polyimide Composites ◽  
Hierarchical Carbon

A Study on Mechanical and Tribological Properties of Hot Pressed Al2O3/ZrO2/h-BN/TiO2 Composites

2011 ◽  
Vol 695 ◽  
pp. 417-420 ◽  
Author(s):  
Hyun Hwi Lee ◽  
Seung Ho Kim ◽  
Bhupendra Joshi ◽  
Soo Wohn Lee
Keyword(s):  
Tribological Properties ◽  
Ceramic Composite ◽  
Elevated Temperatures ◽  
Cutting Tools ◽  
High Hardness ◽  
High Melting Point ◽  
Corrosion Resistant ◽  
Mechanical And Tribological Properties ◽  
Chemical Inertness ◽  
Corrosion Resistant Coatings

Oxide ceramics such as alumina and zirconia are industrially utilized as cutting tools, a variety of bearings, biomaterials, and thermal and corrosion-resistant coatings due to their high hardness, chemical inertness, high melting point, and ability to retain mechanical strength at elevated temperatures. In this research, the effect of other ceramic additives (TiO2) and h-BN within alumina(α-Al2O3) and yttria-stabilized tetragonal (Y-TZP) composite was studied with respect to the mechanical and tribological properties. The lowest coefficient of frction of 0.45 was observed for the ZTA ceramic composite with hBN-TiO2. The highest hardness, fracture toughness and flexural strength were obtained as 15.7GPa, 5.2MPam-1/2, 712MPa, respectively.

Metal-Organic Frameworks/Polydopamine Synergistic Interface Enhancement of Carbon Fiber/Phenolic Composites with Promoting Mechanical and Tribological Performances

Nanoscale ◽  
2021 ◽  
Author(s):  
Shanshan Ma ◽  
Hejun Li ◽  
Chang Li ◽  
Haochen Tian ◽  
Meixia Tao ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Tribological Properties ◽  
Metal Organic Frameworks ◽  
Mechanical And Tribological Properties ◽  
Metal Organic ◽  
Application Prospects

Carbon fiber/phenolic composites have wide application prospects in the transmission of vehicles, where the combination of prominent mechanical and tribological properties are required. Multiscale metal-organic frameworks (MOFs) and polydopamine (PDA)...

scholarly journals Growth of ultra-dense MoS2 nanosheets on carbon fibers to improve the mechanical and tribological properties of polyimide composites

Friction ◽  
2020 ◽  
Author(s):  
Jin Yang ◽  
Qingfeng Xiao ◽  
Zhe Lin ◽  
Yong Li ◽  
Xiaohua Jia ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Fibers ◽  
Tribological Properties ◽  
Transition Layer ◽  
Interface Bonding ◽  
Mos2 Nanosheets ◽  
Mechanical And Tribological Properties ◽  
Polyimide Composites ◽  
Reinforcing Effects ◽  
Absorption Sites

AbstractTo enhance the interface bonding of polyimide (PI)/carbon fiber (CF) composites, CFs were functionalized by introducing a polydopamine (PDA) transition layer, whose active groups provide absorption sites for the growth of molybdenum disulfide (MoS2) nanosheets and improve the bonding strength with PI. Uniform and dense MoS2 nanosheets with thicknesses of 30–40 nm on the surface of the PDA@CF were obtained via a subsequent hydrothermal method. As a result, the interface between the CF and the PI matrix becomes more compact with the help of the PDA transition layer and MoS2 nanosheets. This is beneficial in forming PI/CF-MoS2 composites with better thermal stability, higher tensile strength, and enhanced tribological properties. The lubricating and reinforcing effects of the hybrid CF-MoS2 in the PI composite are discussed in detail. The tensile strength of the PI/CF-MoS2 composite increases by 43%, and the friction coefficient and the wear rate reduce by 57% and 77%, respectively, compared to those of the pure PI. These values are higher than those of the PI/CF composites without MoS2 nanosheets. These results indicate that the CF-MoS2 hybrid material can be used as an additive to improve the mechanical and tribological properties of polymers.

Remarkable enhancement of mechanical and tribological properties of polyamide 46/polyphenylene oxide alloy by polyurethane-coated carbon fiber

2019 ◽  
Vol 31 (9-10) ◽  
pp. 1122-1131
Author(s):  
Jincheng Ran ◽  
Xuejun Lai ◽  
Hongqiang Li ◽  
Xingrong Zeng
Keyword(s):  
Carbon Fiber ◽  
Tribological Properties ◽  
Photoelectron Spectroscopy ◽  
Laser Raman Spectroscopy ◽  
Friction Process ◽  
Mechanical And Tribological Properties ◽  
Laser Raman ◽  
Polyphenylene Oxide ◽  
Lubricating Layer ◽  
Coated Carbon

How to significantly improve the mechanical and tribological properties of polyamide 46/polyphenylene oxide (PA46/PPO) alloy is an urgent but challenging issue. The PA46/PPO alloy reinforced with polyurethane-coated carbon fiber (PCF) was prepared and characterized. It was found that the mechanical properties, heat resistance, and tribological properties of PA46/PPO were greatly enhanced by incorporating PCF. When the composite containing 40 wt% of PCF, the tensile strength of the composite increased from 82 MPa to 282 MPa; meanwhile, volumetric wear was 0.56 mm3, which decreased by 95% in comparison with PA46/PPO. Scanning electron microscopy results showed that PCF had a good compatibility with the polymer matrix, due to good interfacial interaction between the PCF and the PA46/PPO. X-Ray photoelectron spectroscopy and laser Raman spectroscopy results further revealed that more graphitic carbon was microcracked to form a lubricating layer during friction process, thus remarkably improving the wear resistance of PA46/PPO.

TRIBOLOGICAL PROPERTIES OF Al2O3/ZrO2 SINTERED CERAMICS

Tribologia ◽  
2019 ◽  
Vol 283 (1) ◽  
pp. 67-72
Author(s):  
Grzegorz WIĄZANIA ◽  
Marcin KOT ◽  
Agnieszka WOJTECZKO ◽  
Zbigniew PĘDZICH
Keyword(s):  
Composite Materials ◽  
Tribological Properties ◽  
Dry Friction ◽  
Elevated Temperatures ◽  
Friction Contact ◽  
Manufacturing Costs ◽  
Mechanical And Tribological Properties ◽  
Complex Shapes ◽  
Ball On Disc

The paper presents mechanical and tribological properties of Al2O3/ZrO2 composite sinters with different proportions of Al2O3 and ZrO2 phases. These materials are commonly used in dry friction contact due to relatively low manufacturing costs of even complex shapes of products and the possibility of working at elevated temperatures. The tests were carried out by the ball-on-disc method at temperatures of 20, 150, 300, and 500°C. A ball made of Al2O3 was used as a counterpart. The results were compared with the following sintered mono-phase materials: Al2O3(alumina) and tetragonal yttria-stabilized ZrO2 polycrystallines (Y-TZP). The tests showed the significantly better properties of composite materials.

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