Method to fabricate high temperature composite

Patent metadata

Field	Value
Publication number	US-10053608-B2
Application number	US-201715400604-A
Country	US
Kind code	B2
Filing date	Jan 6, 2017
Priority date	Jan 6, 2017
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

A method of fabricating a ceramic component includes processing a hybrid matrix blend formed of a ceramic precursor and a glass powder to form a hybrid matrix composite component. A polymer-derived ceramic component including a hybrid matrix composite formed of a hybrid matrix blend including at least one of a ceramic precursor and a conversion char, and a glass powder.

First claim

What is claimed is:

1. A method of fabricating a ceramic component, comprising:
processing a hybrid matrix blend formed of at least one of a ceramic precursor and conversion char, and a glass powder comprising at least one of lithium aluminosilicate (LAS), barium magnesium aluminosilicate (BMAS), calcium magnesium aluminosilicate (CMAS), and strontium aluminosilicate (SAS) to form a hybrid matrix composite component comprising a glass phase and a polymer-derived ceramic phase, the hybrid matrix composite component having a greater thermal conductivity than that of the glass phase alone, wherein the thermal conductivity of the hybrid matrix composite is between about 6-20 Watts per meter-Kelvin (W/mk), wherein the ceramic precursor includes a hybrid organic/inorganic polymer or oligomer.

2. The method as recited in claim 1 , wherein processing the hybrid matrix blend includes at least one of radiation exposure, applied pressure and environmental exposure.

3. The method as recited in claim 1 , wherein the ceramic precursor includes an inorganic polymer.

4. The method as recited in claim 1 , wherein the ceramic precursor includes a silicon-containing precursor.

5. The method as recited in claim 1 , wherein the glass powder includes at least one of an aluminosilicate, a boron-containing glass and a phosphorus-containing glass.

6. The method as recited in claim 1 , wherein the hybrid matrix blend is prepared as a mixed powder.

7. The method as recited in claim 6 , wherein the mixed powder follows pyrolysis of the ceramic precursor.

8. The method as recited in claim 6 , wherein the mixed powder is co-mixed and co-fired to distribute the phases.

9. A method of fabricating a ceramic component, comprising:
processing a hybrid matrix blend formed of at least one of a ceramic precursor and conversion char, and a glass powder comprising at least one of lithium aluminosilicate (LAS), barium magnesium aluminosilicate (BMAS), calcium magnesium aluminosilicate (CMAS), and strontium aluminosilicate (SAS) to form a hybrid matrix composite component comprising a glass phase and a polymer-derived ceramic phase, the hybrid matrix composite component having a greater thermal conductivity than that of the glass phase alone, wherein the thermal conductivity of the hybrid matrix composite is between about 6-20 Watts per meter-Kelvin (W/mk), wherein the ceramic precursor includes an organically modified sol-gel.

10. A method of fabricating a ceramic component, comprising:
processing a hybrid matrix blend formed of at least one of a ceramic precursor and conversion char, and a glass powder comprising at least one of lithium aluminosilicate (LAS), barium magnesium aluminosilicate (BMAS), calcium magnesium aluminosilicate (CMAS), and strontium aluminosilicate (SAS) to form a hybrid matrix composite component comprising a glass phase and a polymer-derived ceramic phase, the hybrid matrix composite component having a greater thermal conductivity than that of the glass phase alone, wherein the thermal conductivity of the hybrid matrix composite is between about 6-20 Watts per meter-Kelvin (W/mk), wherein the ceramic component includes a material processed through at least one of sol-gel, high temperature reaction synthesis, sublimation, and combustion synthesis.

Assignees

• United Technologies Corp

Inventors

• Schmidt Wayde R
• Sheedy Paul
• Magdefrau Neal

Classifications

• C09K5/14 Primary

  Solid materials, e.g. powdery or granular · CPC title

• C03C10/00

  Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition · CPC title

• C04B35/589

  obtained from {Si-containing} polymer precursors {or organosilicon monomers} · CPC title

• C04B2235/486

  Boron containing organic compounds, e.g. borazine, borane or boranyl · CPC title

• C04B2235/365

  Borosilicate glass · CPC title