Verfahren zur Herstellung von Verbundwerkstoffen mit Keramischer Matrix

Details

Veröffentlichungs-Nr.

EP4752121

Anmeldetag

21. November 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

IPC

C04B35/653, C04B35/80

Abstract

A process for melt-infiltrating a partially densified ceramic matrix composite, comprising the steps of: disposing in a chamber of a thermal processing apparatus a partially densified ceramic matrix composite comprising a ceramic matrix including at least silicon carbide and at least one oxide phase precursor; introducing at least one gas into the thermal processing apparatus; elevating a temperature of the chamber to cause a reaction between the silicon carbide and the least one gas; achieving a chemical equilibrium of the gases within the chamber; identifying a gas regime for minimizing the liberation of SiO and SiO<2>; maintaining a temperature and CO<2>:CO ratio of the identified gas regime within the chamber; and, melt-infiltrating the partially densified ceramic matrix composite with the at least one oxide phase precursor to form a molten oxide ceramic matrix composite comprising a matrix including a silicon carbide phase and an oxide phase.

Anmelder

Firma

RTX Corporation

Land

🇺🇸 USA