Abstract: The invention relates to a process for treating a metal alloy part, characterized in that it comprises the following steps: —producing a stock formulation by mixing, in equal molar parts of silicon, an alcoholic solution of hydrolysed epoxysilane and an alcoholic solution of hydrolysed aminosilane, —mixing the stock formulation with a suspension comprising conductive nanowires in an amount by weight of between 0.1% and 10% relative to the total weight of the stock formulation in order to obtain a dilute formulation, and —depositing the dilute formulation on the part in order to obtain the coating.
Type:
Grant
Filed:
February 9, 2017
Date of Patent:
June 8, 2021
Assignees:
SAFRAN, RBNANO, SAFRAN LANDING SYSTEMS
Inventors:
Jean-Baptiste Cambon, Julien Esteban, Roland Rodrigue Mafouana, Jean-Philippe Ruetsch
Abstract: The invention relates to a process for treating a metal alloy part, characterized in that it comprises the following steps: —producing a stock formulation by mixing, in equal molar parts of silicon, an alcoholic solution of hydrolysed epoxysilane and an alcoholic solution of hydrolysed aminosilane, —mixing the stock formulation with a suspension comprising conductive nanowires in an amount by weight of between 0.1% and 10% relative to the total weight of the stock formulation in order to obtain a dilute formulation, and —depositing the dilute formulation on the part in order to obtain the coating.
Type:
Application
Filed:
February 9, 2017
Publication date:
March 21, 2019
Applicants:
SAFRAN, RBNANO, SAFRAN LANDING SYSTEMS
Inventors:
Jean-Baptiste CAMBON, Julien ESTEBAN, Roland Rodrigue MAFOUANA, Jean-Philippe RUETSCH
Abstract: A method of coating the surface of a metal substrate includes a) applying a first composition on the surface of a metal substrate, the first composition being a solution comprising a liquid medium including sol-gel precursors of alcoxysilane type or of metallo-organic type; b) subjecting the first composition to first heat treatment to form an anchor layer on the metal substrate in which the sol-gel precursors are bonded to the metal substrate, a first temperature being imposed during the first heat treatment that is sufficient to eliminate all or part of the liquid medium and to encourage the bonding of the sol-gel precursors to the metal substrate; and c) applying a second composition on the anchor layer. The second composition includes coating compounds to obtain a coating on the anchor layer by forming bonds between the sol-gel precursors and the coating compounds.
Type:
Grant
Filed:
October 9, 2015
Date of Patent:
September 4, 2018
Assignees:
MESSIER-BUGATTI-DOWTY, RBNANO
Inventors:
Julien Esteban, Rodrigue Roland Mafouana, Jean-Luc Rehspringer
Abstract: A method of coating the surface of a metal substrate includes a) applying a first composition on the surface of a metal substrate, the first composition being a solution comprising a liquid medium including sol-gel precursors of alcoxysilane type or of metallo-organic type; b) subjecting the first composition to first heat treatment to form an anchor layer on the metal substrate in which the sol-gel precursors are bonded to the metal substrate, a first temperature being imposed during the first heat treatment that is sufficient to eliminate all or part of the liquid medium and to encourage the bonding of the sol-gel precursors to the metal substrate; and c) applying a second composition on the anchor layer. The second composition includes coating compounds to obtain a coating on the anchor layer by forming bonds between the sol-gel precursors and the coating compounds.
Type:
Application
Filed:
October 9, 2015
Publication date:
April 14, 2016
Applicants:
MESSIER-BUGATTI-DOWTY, RBNANO
Inventors:
Julien ESTEBAN, Rodrigue Roland MAFOUANA, Jean-Luc REHSPRINGER