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Pyrolytic carbon (pyrocarbon) was infiltrated to porous carbon preforms or two-dimensionally woven carbon fiber (2D-C)/SiC particulate preforms using pressure-pulsed chemical vapour infiltration from 20-100% CH 4 diluted by H 2 or N 2 . Pyrocarbon deposited from the gas system CH 4 -N 2 had a laminar microstructure oriented parallel to the macrosurface of the...
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