Global Patent Index - EP 4175929 A1

EP 4175929 A1 20230510 - METHOD FOR MANUFACTURING AN ENVIRONMENTAL BARRIER

Title (en)

METHOD FOR MANUFACTURING AN ENVIRONMENTAL BARRIER

Title (de)

VERFAHREN ZUR HERSTELLUNG EINER UMWELTBARRIERE

Title (fr)

PROCEDE DE FABRICATION D'UNE BARRIERE ENVIRONNEMENTALE

Publication

EP 4175929 A1 20230510 (FR)

Application

EP 21740159 A 20210622

Priority

  • FR 2007018 A 20200702
  • FR 2021051139 W 20210622

Abstract (en)

[origin: WO2022003273A1] The invention relates to a method for manufacturing (100) an environmental barrier comprising the steps of coating (102) a rare earth silicate powder with a precursor of a densification agent in order to form a rare earth silicate powder coated with the precursor of the densification agent, thermally spraying (104) the coated powder onto a substrate in order to obtain an at least partially amorphous environmental barrier on the substrate, and thermally treating (106) the environmental barrier in order to crystallise and densify same.

IPC 8 full level

C04B 41/00 (2006.01); C04B 35/16 (2006.01); C04B 35/622 (2006.01); C04B 35/628 (2006.01); C04B 41/52 (2006.01); C04B 41/89 (2006.01); F01D 5/28 (2006.01)

CPC (source: EP US)

C04B 35/16 (2013.01 - EP US); C04B 35/62222 (2013.01 - EP US); C04B 35/6281 (2013.01 - EP); C04B 35/62815 (2013.01 - EP US); C04B 35/62826 (2013.01 - EP); C04B 35/62884 (2013.01 - EP US); C04B 35/62886 (2013.01 - EP US); C04B 41/009 (2013.01 - EP US); C04B 41/52 (2013.01 - EP US); C04B 41/89 (2013.01 - EP US); C23C 4/10 (2013.01 - US); C23C 4/18 (2013.01 - US); F01D 5/288 (2013.01 - EP); C04B 2235/3224 (2013.01 - EP US); C04B 2235/3225 (2013.01 - EP US); F05D 2300/15 (2013.01 - EP); F05D 2300/211 (2013.01 - EP); F05D 2300/6033 (2013.01 - EP)

Citation (search report)

See references of WO 2022003273A1

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

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

FR 3112143 A1 20220107; CN 115803306 A 20230314; EP 4175929 A1 20230510; US 2023250034 A1 20230810; WO 2022003273 A1 20220106

DOCDB simple family (application)

FR 2007018 A 20200702; CN 202180046902 A 20210622; EP 21740159 A 20210622; FR 2021051139 W 20210622; US 202118003042 A 20210622