Boron nitride converted carbon fiber
AssigneeThe Regents of the University of California
InventorsMichael Rousseas, William Mickelson, Alexander K. Zettl
Life of this patent
Estimating the term…
Abstract
This disclosure provides systems, methods, and apparatus related to boron nitride converted carbon fiber. In one aspect, a method may include the operations of providing boron oxide and carbon fiber, heating the boron oxide to melt the boron oxide and heating the carbon fiber, mixing a nitrogen-containing gas with boron oxide vapor from molten boron oxide, and converting at least a portion of the carbon fiber to boron nitride.
Claims20
A method comprising:
- (a) providing boron oxide and carbon fiber;
- (b) heating the boron oxide to melt the boron oxide and heating the carbon fiber;
- (c) mixing a nitrogen-containing gas with boron oxide vapor from molten boron oxide;
- and
- (d) converting at least a portion of the carbon fiber to boron nitride.
A structure comprising:
- a carbon fiber core;
- and
- a boron nitride layer surrounding the carbon fiber core, the boron nitride layer having substantially the same morphology as the carbon fiber core.
A structure including a carbon fiber core and a boron nitride layer surrounding the carbon fiber core, the boron nitride layer having substantially the same morphology as the carbon fiber core, prepared by a process comprising:
- (a) providing boron oxide and carbon fiber;
- (b) heating the boron oxide to melt the boron oxide and heating the carbon fiber;
- (c) mixing a nitrogen-containing gas with boron oxide vapor from molten boron oxide;
- and
- (d) converting at least a portion of the carbon fiber to boron nitride.
Dependencies are inferred from the claim text.