Global Patent Index - EP 3947319 A1

EP 3947319 A1 20220209 - METHOD FOR MANUFACTURING A PART MADE FROM CMC

Title (en)

METHOD FOR MANUFACTURING A PART MADE FROM CMC

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES AUS CMC GEFERTIGTEN TEILS

Title (fr)

PROCEDE DE FABRICATION D'UNE PIECE EN CMC

Publication

EP 3947319 A1 20220209 (FR)

Application

EP 20713333 A 20200330

Priority

  • US 201962829863 P 20190405
  • FR 1911064 A 20191007
  • EP 2020058929 W 20200330

Abstract (en)

[origin: WO2020201202A1] The invention relates to a method for manufacturing a part made from CMC, the method comprising at least: - coating a plurality of cables (2) with an interphase by transporting the cables through a treatment chamber (4) into which a gas phase (10) is injected, the cables being tensioned during transport and the interphase being formed by vapour phase deposition from the injected gas phase; - forming a fibrous preform by three-dimensional weaving using the cables coated with the interphase; and- forming a consolidated fibrous preform by treating the fibrous preform by vapour phase chemical infiltration to form a consolidation phase on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa and a part made from CMC comprising at least: - a 3D woven fibrous reinforcement comprising a plurality of cables (2), the cables having a plurality of fibres which are individually coated with an interphase; and- a consolidation phase densifying the fibrous reinforcement and located on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa, the consolidation phase containing no free silicon.

IPC 8 full level

C04B 35/565 (2006.01); C04B 35/573 (2006.01); C04B 35/628 (2006.01); C04B 35/80 (2006.01); C04B 38/00 (2006.01); C23C 16/54 (2006.01); D03D 25/00 (2006.01); D06B 3/04 (2006.01)

CPC (source: EP US)

C04B 35/565 (2013.01 - EP US); C04B 35/573 (2013.01 - EP); C04B 35/62863 (2013.01 - US); C04B 35/62868 (2013.01 - EP US); C04B 35/62873 (2013.01 - EP US); C04B 35/62884 (2013.01 - EP); C04B 35/80 (2013.01 - EP US); C04B 38/0074 (2013.01 - EP); C23C 16/26 (2013.01 - EP); C23C 16/342 (2013.01 - EP); C23C 16/545 (2013.01 - EP); C04B 2111/00982 (2013.01 - EP); C04B 2235/5244 (2013.01 - EP US); C04B 2235/5252 (2013.01 - EP US); C04B 2235/614 (2013.01 - EP); C04B 2235/728 (2013.01 - EP); C04B 2235/77 (2013.01 - EP); D06B 1/02 (2013.01 - EP); D06B 5/06 (2013.01 - EP)

Citation (search report)

See references of WO 2020201202A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2020201202 A1 20201008; EP 3947319 A1 20220209; US 2022177374 A1 20220609

DOCDB simple family (application)

EP 2020058929 W 20200330; EP 20713333 A 20200330; US 202017601270 A 20200330