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Mesocarbon microbeads have proved to be an excellent precursor for high-density carbon materials. In this article, the impact of oxidation on carbonization behavior and mechanical property of the graphitized pellets are studied. Thermal analysis shows that the oxidation is the competition between weight gain, due to the incorporation of oxygen into the structure and weight loss caused by the consumed...
Fatigue behaviour of polycrystalline, isotropic graphite FU2590 (porosity 13vol%) and of FU2590 infiltrated with the aluminium alloy AlSi7Mg (FU2590/AlSi7Mg) is investigated. The interpenetrating graphite–aluminium composite is produced by squeeze casting infiltration, where the open porosity of FU2590 (10–11vol%) is infiltrated with AlSi7Mg. Fully reversed bending fatigue tests at cycling frequency...
The self-sensing of flexural strain and damage has been demonstrated in carbon fiber polymer-matrix composite by measuring the DC electrical resistance. Upon strain in the elastic regime, the compression surface resistance decreases reversibly (due to increase in the current penetration), while the tension surface resistance increases reversibly (due to decrease in the current penetration), and the...
The novel properties of carbon nanotubes have generated scientific and technical interest in the development of nanotube-reinforced polymer composites. In order to utilize nanotubes in multi-functional material systems it is crucial to develop processing techniques that are amenable to scale-up for high volume, high rate production. In this research we investigate a scalable calendering approach for...
Thermal shock resistance of a commercial grade of graphite was studied using an arc-discharge test. The thermal shock fracture initiation and crack propagation behaviour of the graphite disks at different input power levels were determined and analysed using fracture mechanics. The temperature gradient was measured experimentally and the profiles were force fitted with an even fourth-order polynomial...
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