Nanostructured Carbon and Graphite – Ultra Lightweight Engineering Materials

Frank Kern; Rainer Gadow

doi:10.4028/www.scientific.net/AST.45.1495

Paper Titles

Percolation Analysis of Electrical Conductivity and Mechanical Properties for CNT-Dispersed Y-TZP Nanocomposites
p.1469

Layered Interphases in Ceramic Matrix Composites and Relation with Interfacial Behaviour
p.1475

Degradation of Conductivity and Microstructure under Thermal and Current Load in Ni-YSZ Cermets for SOFC Anodes
p.1483

Measurement and Simulation of the Oxidation of Carbon Fibers and C/SiC Ceramic
p.1489

Nanostructured Carbon and Graphite – Ultra Lightweight Engineering Materials
p.1495

Ceramic Composites and Thermal Protection Systems for Reusable Re-Entry Vehicles
p.1505

New Generation of CBN Grinding Wheels Bonded with Glass-Ceramic
p.1515

Diffusion of Metallic Species and their Influence on Interfacial Reactions in Glass-Ceramic-to-Metal Seals
p.1520

Micro- and Nano-Scale Wetting of Reactive Metal at Metal/Ceramic Interface
p.1526

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Nanostructured Carbon and Graphite – Ultra...

Nanostructured Carbon and Graphite – Ultra Lightweight Engineering Materials

Abstract:

Fine grain graphite has been an important material for tribologically loaded components such as seals and bearings for almost a century. Requirements are becoming more severe and complex concerning miniaturization, higher normal loads and toxicological restrictions. Today state-of-the-art production of high quality fine grain graphite from binder and filler begins to reach its technical and economic limits and manufacturers face some pressure that their products are suppressed by other materials like silicon carbide. Nanostructured carbon and graphite derived from sinterable carbon such as pretreated petrol-, coal-tar- as well as synthetic pitch precursors offers the opportunity to improve the material properties, simplify the production processes and reduce the environmental and workplace protection requirements. To achieve this objective raw materials and compounds were adapted to near net-shape ceramic manufacturing technologies. The feedstocks were formed and shaped. Post treatment and sintering technologies were developed in order to obtain carbon components with superior mechanical strength, and both very high hardness and self lubricating tribological behaviour even at high normal loads.

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Periodical:

Advances in Science and Technology (Volume 45)

Pages:

1495-1504

DOI:

https://doi.org/10.4028/www.scientific.net/AST.45.1495

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Online since:

October 2006

Authors:

Frank Kern, Rainer Gadow

Keywords:

Carbon, Graphite, Mesophase, Tribology

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