Effects of NBR Particle Size on Performance of Carbon Fiber–Reinforced Paper-Based Friction Material

2015 ◽  
Vol 58 (6) ◽  
pp. 1012-1020 ◽  
Author(s):  
Jie Fei ◽  
Wei Luo ◽  
Hejun Li ◽  
Jianfeng Huang ◽  
Haibo Ouyang ◽  
...  
Keyword(s):  
Particle Size ◽  
Carbon Fiber ◽  
Friction Material ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Microstructures and Mechanical Properties of Three-Dimensional Braided Carbon Fiber Reinforced Mullite Composites with Different Sols as Raw Materials

2015 ◽  
Vol 816 ◽  
pp. 27-32 ◽  
Author(s):  
Song Lin Liang ◽  
Qing Song Ma ◽  
Hai Tao Liu
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Carbon Fiber ◽  
Raw Materials ◽  
Three Dimensional ◽  
Solid Content ◽  
Fiber Reinforced ◽  
Ceramic Yield ◽  
Carbon Fiber Reinforced ◽  
Microstructures And Mechanical Properties

In order to efficiently fabricate dense three-dimensional carbon fiber reinforced mullite matrix composites (3D C/mullite), two kinds of Al2O3-SiO2sols with high solid content were used as raw materials. The ceramic yield and mullitization behavior of the sols and the densification process were investigated. It is indicated that the two sols have proper solid content and ceramic yield and can be completely transformed into mullite at 1573K, which make them be able to prepare composites. 3D C/mullite composites with a porosity of ∼25% were prepared by repeating less than 20 cycles of infiltration-drying-heating of sols, and the microstructures and mechanical properties were examined. The results suggest that the sol with smaller particle size derived composites exhibit well-sintered dense matrix and physically stronger interfacial bonding, which are beneficial to improve load-bearing and load-transferring capacity of matrix. As a result, this composites show much higher mechanical properties. The flexural strength and modulus are 2.4 times and 1.3 times as those of the sol with larger particle size derived composites, respectively.

Abrasion Performances of Stainless Steel/Carbon Fiber Reinforced Polyetheretherketone (PEEK) Friction Material

2007 ◽  
Vol 329 ◽  
pp. 511-518 ◽  
Author(s):  
Hua Fu ◽  
Bo Liao ◽  
Bao Chen Sun ◽  
Ai Ping Liu ◽  
Fang Juan Qi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Carbon Fiber ◽  
Friction Material ◽  
Resin Matrix ◽  
Wear Loss ◽  
Fiber Reinforced ◽  
Molding Process ◽  
Stainless Steel Fiber ◽  
Higher Temperature ◽  
Carbon Fiber Reinforced

A semi-metallic stainless steel/carbon fiber reinforced PEEK-based friction material was developed in this paper. The composite was PEEK 19.63wt%, stainless steel fiber 7.57 wt%, carbon fiber 10.97 wt%, cashew 6.51 wt% and fillers 55.33%. The molding process was blending for about 30 seconds at higher speed, pre-heating at the temperature of 80 for 30min, molding at 320 and pressure 35Mpa for 3min/mm, then post-curing at the temperature of 80 for 30min , 150 for 30min270 for 30min320 for 180min. The results of abrasion test showed that the developed material N3 had higher and steady friction coefficient and low abrasion value. The SEM morphology study showed that the wear mechanism was particle abrasion at low temperature but adherence abrasion as well as particle abrasion occurred at higher temperature. The cohesive strength of the composite and the heat-resistant property of resin matrix were the key factors affected wear loss. The abrasion depended on the strength of transformed films and matrix.

Carbon-Fiber Reinforced Paper-Based Friction Material: Study on Friction Stability as a Function of Operating Variables

2008 ◽  
Vol 130 (4) ◽  
Author(s):  
Jie Fei ◽  
He-Jun Li ◽  
Le-Hua Qi ◽  
Ye-Wei Fu ◽  
Xin-Tao Li
Keyword(s):  
Carbon Fiber ◽  
Flow Rate ◽  
Automatic Transmission ◽  
Friction Material ◽  
Operating Conditions ◽  
Fiber Reinforced ◽  
Rotating Speed ◽  
Dynamic Friction Coefficient ◽  
Oil Flow ◽  
Carbon Fiber Reinforced

Carbon-fiber-reinforced paper-based friction material (CFRPF), as a new type of wet friction material for automatic transmission, was prepared by a paper-making process. The frictional response of CFRPF is highly complex under a set of dynamically variable operating conditions. To better understand the effect of operating factors (braking pressure, rotating speed, oil temperature, and oil flow rate) on friction stability of the material, tests were carried out using a single ingredient experiment and the Taguchi method. Experimental results show that the braking stability and the dynamic friction coefficient (μd) decrease as braking pressure, rotating speed, oil temperature, and oil flow rate increase. The influence of braking pressure on μd is largest among the four operating factors. μd declines gradually during the first 3000 repeated braking cycles and changes very little subsequently due to the surface topography change in friction material.

Sign in / Sign up

Export Citation Format

Share Document