# US 7,745,362 B2 · Metal-containing structured ceramic materials

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- Number: US 7,745,362 B2
- Document ID: US7745362B2
- Status: Granted
- Kind: B2
- Application number: 11/464,142
- Filed: 2006-08-11
- Published: 2008-02-14
- Granted: 2010-06-29
- Earliest claimed: 2006-08-11
- Assignees: General Electric Company
- Inventors: Patrick Roland Lucien Malenfant; Andrea Peters; Julin Wan
- Web page: https://patentgrep.com/patent/US7745362B2

## CPC

- C04B 35/6325: {based on organo-metallic compounds}
- C04B 35/486: Fine ceramics
- C04B 35/495: based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
- C04B 35/5607: {based on refractory metal carbides}
- C04B 35/563: based on boron carbide
- C04B 35/571: obtained from {Si-containing} polymer precursors {or organosilicon monomers}
- C04B 35/58007: {based on refractory metal nitrides}
- C04B 35/58014: {based on titanium nitrides, e.g. TiAlON}
- C04B 35/58064: {based on refractory borides}
- C04B 35/583: based on boron nitride
- C04B 35/589: obtained from {Si-containing} polymer precursors {or organosilicon monomers}
- C04B 2235/3232: Titanium oxides or titanates, e.g. rutile or anatase
- C04B 2235/3826: Silicon carbides
- C04B 2235/3852: Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B 2235/3856: Carbonitrides, e.g. titanium carbonitride, zirconium carbonitride
- C04B 2235/386: Boron nitrides
- C04B 2235/3873: Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
- C04B 2235/408: Noble metals
- C04B 2235/441: Alkoxides, e.g. methoxide, tert-butoxide
- C04B 2235/48: Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B 2235/483: Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
- C04B 2235/486: Boron containing organic compounds, e.g. borazine, borane or boranyl
- C04B 2235/762: Cubic symmetry, e.g. beta-SiC
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE

## Abstract

There are provided in accordance with embodiments of the invention metal-containing inorganic block copolymers, structures formed by self-assembly of such copolymers, and metal-containing ceramics which may be formed from such copolymers and/or structure. Methods for making such copolymers, structures and ceramics are also provided. Other embodiments are also disclosed.

## Claims

### Claim 1

A method for making a structured ceramic material having nano-ordered structure in at least a portion thereof and in which particles of at least one metal are disposed, comprising:
a) providing an inorganic block copolymer containing at least one inorganic-based block, wherein the inorganic block copolymer comprises an ordered structure and at least one of the group consisting of polycarborane, polynorbornene and polynorbornene-decaborane;
b) providing a plurality of metallic particles that have an affinity for at least one block of said block copolymer, said metallic particles being selected from the group consisting of metal particles that have an affinity for at least one block of said block copolymer and metal particles coated with an agent that has an affinity for at least one block of said block copolymer;
c) dissolving the block copolymer in a solvent;
d) contacting said copolymer with said metallic particles to obtain an inorganic block copolymer with metallic particles disposed therein;
e) evaporating the solvent to cause self-assembly of the block copolymer; and
f) pyrolyzing said inorganic block copolymer with metallic particles disposed therein.

### Claim 2 (depends on 1)

A method according to claim 1, wherein said metallic particles have a greater affinity for at least one block of said block copolymer than for at least one other block of said block copolymer.

### Claim 3

A method for making a structured ceramic material having nano-ordered structure in at least a portion thereof and in which particles of at least one metal are disposed, comprising:
a) providing an inorganic block copolymer containing at least one inorganic-based block, wherein the inorganic block copolymer comprises an ordered structure and at least one of the group consisting of polycarborane, polynorbornene and polynorbornene-decaborane;
b) providing a plurality of an organometallic molecules that have an affinity for at least one block of said block copolymer;
c) dissolving the block copolymer in a solvent;
d) contacting said copolymer with said plurality to obtain an inorganic block copolymer with organometallic molecules disposed therein;
e) evaporating the solvent to cause self-assembly of the block copolymer; and
f) pyrolyzing said inorganic block copolymer with organometallic molecules disposed therein.

### Claim 4 (depends on 3)

A method according to claim 3 wherein said organometallic molecules have a greater affinity for at least one block of said block copolymer than for at least one other block of said copolymer.