Global Patent Index - EP 3962879 A1

EP 3962879 A1 20220309 - PART MADE OF SILICON-BASED CERAMIC OR CMC AND METHOD FOR PRODUCING SUCH A PART

Title (en)

PART MADE OF SILICON-BASED CERAMIC OR CMC AND METHOD FOR PRODUCING SUCH A PART

Title (de)

TEIL AUS KERAMIK ODER CMC AUF SILIKONBASIS UND VERFAHREN ZUR HERSTELLUNG EINES SOLCHEN TEILS

Title (fr)

PIÈCE EN CÉRAMIQUE OU CMC À BASE DE SILICIUM ET PROCÉDÉ DE RÉALISATION D'UNE TELLE PIÈCE

Publication

EP 3962879 A1 20220309 (FR)

Application

EP 20731919 A 20200430

Priority

  • FR 1904633 A 20190503
  • FR 2020050734 W 20200430

Abstract (en)

[origin: WO2020225508A1] The invention relates to a part made of silicon-based ceramic material or silicon-based ceramic matrix composite (CMC) comprising an environmental barrier coating (EBC), the coating (12, 13) comprising a bonding layer (12) arranged on the surface of the ceramic material or ceramic matrix composite (CMC), the bonding layer (12) being topped by one or more layers which together form a multi-functional protective structure (13). The invention is characterised in that the bonding layer (12), at its interface with the multi-functional structure, comprises a layer (12) or sub-layer (12b) made of polycrystalline silicon.

IPC 8 full level

C04B 41/00 (2006.01); C04B 41/52 (2006.01); C04B 41/89 (2006.01); C23C 14/48 (2006.01); C23C 28/04 (2006.01); F01D 5/28 (2006.01); C04B 111/00 (2006.01)

CPC (source: EP US)

C04B 35/565 (2013.01 - US); C04B 35/80 (2013.01 - US); C04B 41/0027 (2013.01 - EP); C04B 41/009 (2013.01 - EP); C04B 41/4558 (2013.01 - US); C04B 41/5024 (2013.01 - US); C04B 41/5035 (2013.01 - US); C04B 41/52 (2013.01 - EP); C04B 41/522 (2013.01 - US); C04B 41/87 (2013.01 - US); C04B 41/89 (2013.01 - EP); F01D 5/288 (2013.01 - EP); C04B 2111/00982 (2013.01 - EP); C04B 2235/3826 (2013.01 - US); F01D 5/282 (2013.01 - US); F05D 2230/314 (2013.01 - EP); F05D 2230/90 (2013.01 - EP US); F05D 2300/2261 (2013.01 - EP US); F05D 2300/6033 (2013.01 - EP US)

Citation (search report)

See references of WO 2020225508A1

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)

FR 3095645 A1 20201106; FR 3095645 B1 20230324; CN 113784938 A 20211210; EP 3962879 A1 20220309; US 2022204415 A1 20220630; WO 2020225508 A1 20201112

DOCDB simple family (application)

FR 1904633 A 20190503; CN 202080033480 A 20200430; EP 20731919 A 20200430; FR 2020050734 W 20200430; US 202017608246 A 20200430