Metal-graphite materials of high graphite content and some methods of their preparation

1976 ◽  
Vol 15 (1) ◽  
pp. 27-29
Author(s):  
D. S. Yas' ◽  
V. I. Pavlenko ◽  
V. B. Podmokov
Keyword(s):  
Graphite Content ◽  
High Graphite

Effect of Graphite on the Friction and Wear Properties of Cu-Based Friction Materials

2014 ◽  
Vol 788 ◽  
pp. 621-626 ◽  
Author(s):  
Jing Dan Wei ◽  
Hua Chen
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Friction And Wear ◽  
Wear Properties ◽  
Friction Materials ◽  
Graphite Content ◽  
Lubricating Film ◽  
Properties Of Materials ◽  
Friction And Wear Properties ◽  
High Graphite

Cu-based friction materials were prepared by powder metallurgy technology. The effect of the graphite on friction and wear properties of materials was investigated. The experimental results indicate that the wear rate of the materials increased with increasing speed. The wear rate of the materials with the graphite with the size of 300~600μm decreased with increasing graphite content, indicating that the graphite size of 300~600μm showed the good lubricating effect. The lubricating film made the friction coefficient decrease. The wear resistance of materials with 100~300μm graphite was degraded at high graphite content, and the graphite size of 100~300μm has bad effect on the strength of materials. The wear debris made the friction coefficient slightly increase with the increase of graphite content. The material with the graphite content of 10% and the graphite size of 300~600μm has the best friction and wear properties.

Seebeck Effect in Graphite-Carbon Fiber Cement Based Composite

2010 ◽  
Vol 177 ◽  
pp. 566-569 ◽  
Author(s):  
Hai Yong Cao ◽  
Wu Yao ◽  
Jun Jie Qin
Keyword(s):  
Carbon Fiber ◽  
Seebeck Coefficient ◽  
Thermoelectric Power ◽  
Seebeck Effect ◽  
Graphite Content ◽  
Cement Based Materials ◽  
Electron Contribution ◽  
Reinforced Cement ◽  
P Type ◽  
High Graphite

The Seebeck effect in carbon fiber reinforced cement-based composite (CFRC) is of interest because it enables the cement-based materials to sense its own temperature without attached or embedded sensor. In this study, the Seebeck coefficient of CFRC and graphite-carbon fiber cement based composite were measured. Results show that the addition of graphite can enhance the Seebeck effect of CFRC. When graphite content is 10wt. %, all types of CFRC show P-type because the hole contribution from carbon fiber dominates the Seebeck effect. When the graphite content is 20wt. %, the change of thermoelectric power (TEP) from positive to negative occurs with the increasing of graphite to carbon fiber ratio (≥25). This phenomenon indicates that compensation takes place between electron contribution from graphite and hole contribution from carbon fiber. At a high graphite content (30wt. %), CFRC shows N-type above a certain temperature difference (20-25°C) since the electrons from graphite dominate the Seebeck effect.

Hot pressing of materials of high graphite content

1971 ◽  
Vol 10 (2) ◽  
pp. 113-114
Author(s):  
A. G. Yurchenko ◽  
L. I. Pugina ◽  
M. S. Koval'chenko
Keyword(s):  
Hot Pressing ◽  
Graphite Content ◽  
High Graphite

Effects of graphite content and compaction pressure on hydrogen desorption properties of Mg(NH2)2–2LiH based tank

2015 ◽  
Vol 628 ◽  
pp. 63-67 ◽  
Author(s):  
Min-yan Yan ◽  
Fei Sun ◽  
Xiao-peng Liu ◽  
Jian-hua Ye ◽  
Shu-mao Wang ◽  
...  
Keyword(s):  
Compaction Pressure ◽  
Hydrogen Desorption ◽  
Graphite Content

Graphite/Bio-Based Epoxy Composites: The Mechanical Properties Interface

2015 ◽  
Vol 799-800 ◽  
pp. 115-119 ◽  
Author(s):  
Anika Zafiah M. Rus ◽  
Nur Munirah Abdullah ◽  
M.F.L. Abdullah ◽  
M. Izzul Faiz Idris
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Filler Content ◽  
Weight Percent ◽  
Epoxy Composites ◽  
Elongation At Break ◽  
Graphite Content ◽  
Dispersion Condition ◽  
Strong Interfacial Bonding

Graphite reinforced bio-based epoxy composites with different particulate fractions of graphite were investigated for mechanical properties such as tensile strength, elastic modulus and elongation at break. The graphite content was varied from 5 wt.%, 10 wt.%, 15 wt.%, 20 wt.%, 25 wt.%, 30 wt.% by weight percent in the composites. The results showed that the mechanical properties of the composites mainly depend on dispersion condition of the treated graphite filler, aggregate structure and strong interfacial bonding between treated graphite in the bio-based epoxy matrix. The composites showed improved tensile strength and elastic modulus with increase treated graphite weight loading. This also revealed the composites with increasing filler content was decreasing the elongation at break.

Sign in / Sign up

Export Citation Format

Share Document