Nano particle-reinforced Mo alloys for x-ray targets and method to make
AssigneeGeneral Electric Company
InventorsPazhayannur Ramanathan Subramanian, Judson Sloan Marte, Paul Leonard Dupree
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Abstract
A nanocomposite comprising a plurality of nanoparticles dispersed in a molybdenum-based matrix, and an x-ray tube component formed from such a nanocomposite. The nanocomposite contains volume fraction of nanoparticle dispersoids in a range from about 2 volume percent to about 20 volume percent. A method of making such molybdenum-based nanocomposites is also disclosed.
Claims15
A method of making a bulk nanocomposite, wherein said bulk nanocomposite comprises a molybdenum-based metallic matrix and a plurality of nanoparticles dispersed throughout said molybdenum-based metallic matrix, and wherein the plurality of said nanoparticles comprises from about 2 volume percent to about 20 volume percent of said bulk nanocomposite, said method comprising the steps of:
- a) providing a nanocomposite powder, wherein said nanocomposite powder comprises a plurality of nanoparticles and a molybdenum-based metallic matrix material, wherein providing a nanocomposite powder comprises cryomilling said molybdenum-based metallic matrix material to form said plurality of nanoparticles;
- b) consolidating said nanocomposite powder;
- and
- c) thermomechanically processing said nanocomposite powder to form said bulk nanocomposite.
A method of making portion of an x-ray target, said method comprising the steps of:
- a) providing a nanocomposite, wherein said nanocomposite comprises a molybdenum-based metallic matrix and a plurality of nanoparticles dispersed throughout said molybdenum-based metallic matrix, and wherein the plurality of said nanoparticles comprises from about 2 volume percent to about 20 volume percent of said nanocomposite, wherein said nanocomposite is formed by providing a nanocomposite powder, wherein said nanocomposite powder comprises a plurality of nanoparticles and a molybdenum-based metallic matrix material;
- consolidating said nanocomposite powder;
- and thermomechanically processing said nanocomposite powder to form said nanocomposite;
- b) shaping said nanocomposite into a nanocomposite disk;
- c) providing a substrate;
- and
- d) bonding said nanocomposite disk to said substrate.
Dependencies are inferred from the claim text.