Method and assembly for infiltration and rapid phase deposition of porous components

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United States of America

PATENT NO 11981607
SERIAL NO

17290503

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Abstract

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A chemical vapor infiltration (CVI) method for densifying at least one porous component includes placing the at least one porous component inside a crucible, bringing temperature inside the crucible to a value adapted to densify the porous component to transform it into a densified component, bringing pressure inside the crucible between 0.1 KPa and 25 KPa, once operational temperature and pressure are reached, flowing gas inside the crucible, gas being suitable for densifying the porous component to transform it into a densified component, and keeping an oxidizing environment outside the crucible, the external environment lapping against the crucible. The crucible is provided of at least one material having thermal conductivity greater than 30 W/mK from room temperature to at least 1000° C. selected from: sintered silicon carbide (SiC), silicon-infiltrated silicon carbide (Si—SiC), sintered boron carbide (B4C), silicon-infiltrated boron carbide (Si—B4C), sintered zirconium carbide (ZrC), silicon-infiltrated zirconium carbide (Si—ZrC), a combination of silicon carbide (SiC), boron carbide (B4C) and sintered and/or silicon-infiltrated zirconium carbide (ZrC).

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Patent Owner(s)

Patent OwnerAddress
PETROCERAMICS S P A24040 STEZZANO BERGAMO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Valle, Massimiliano Stezzano, IT 14 383
Vavassori, Paolo Stezzano, IT 13 78

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