PLASMA DEPOSITED CARBON-FILMS AS A POSSIBLE MEANS FOR DIVERTOR REPAIR

被引:14
作者
BUURON, AJM [1 ]
BEULENS, JJ [1 ]
GROOT, P [1 ]
BAKKER, J [1 ]
SCHRAM, DC [1 ]
机构
[1] NETHERLANDS ENERGY RES FDN, ECN, 1755 ZG PETTEN, NETHERLANDS
关键词
D O I
10.1016/0040-6090(92)90534-I
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Fast deposition of graphitic carbon layers by an expanding cascaded arc plasma was studied as a means for in situ repair of graphite erosion damage in the next step fusion reactor NET/ITER. Amorphous graphite was produced at rates of hundreds of nanometers per second on several square centimeters with an argon-hydrocarbon plasma. Crystalline graphite was produced at rates of 10-50 nm s-1 on several square centimeters by means of an argon-hydrogen-hydrocarbon plasma. Relations between the deposition parameters, morphology (from scanning electron microscopy) and Raman spectra were determined. Using laser thermal shock testing, the erosion resistances of the best crystalline coatings were determined at about 2 MJ m-2 (in a 10 ms pulse).
引用
收藏
页码:282 / 295
页数:14
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