Development of doped graphites for plasma-facing components

Autor:	Carmen García-Rosales, P Paz, M. Balden, R. Behrisch, J. Echeberria, J. Roth
Rok vydání:	2001
Předmět:	Materials science Dopant Mechanical Engineering Doping Mesophase chemistry.chemical_element Homogeneous distribution Carbide Nuclear Energy and Engineering Chemical engineering chemistry General Materials Science Graphite Porosity Carbon Civil and Structural Engineering
Zdroj:	Fusion Engineering and Design. :325-330
ISSN:	0920-3796
Popis:	Doping of carbon leads to a reduction of chemical erosion. This reduction is more effective if dopants are in the form of sub-μm precipitates with a very homogeneous distribution. However, dopants should not degrade but rather improve the thermal conductivity of graphite. Taking into account the catalytic effect of some metals and carbides on the graphitization, the potential for a development of improved doped carbon materials with reduced chemical erosion and optimized thermomechanical properties becomes evident. First results on the development of doped carbon materials starting from mesophase carbon powder and with different fine grain carbides as dopants show that VC acts as an effective catalyst for the graphitization. The materials obtained show high densities, a relatively low open porosity and good mechanical properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6d532399cfcc0359c3feeceb507d426 https://doi.org/10.1016/s0920-3796(01)00353-2 Zobrazit plný text záznamu Full Text from ScienceDirect