Diamonoid Stabilized Fine-Grained Metals
Readily produced fine grained and nanocrysatilline metals and alloys of greater high temperature strength and stability.
A common method for strengthening metals without large decreases in ductility is to reduce the grain size of the metal. However, this strategy does not generally lead to improved strength at elevated temperatures because the grains grow larger by diffusion and grain boundary sliding can occur. This invention adds diamonoids to aluminum resulting in a marked grain size stability at elevated temperatures making it possible to retain the high strength of fine grained metals without sacrificing ductility.
Patent Number: US8628599B2
Application Number: US2008204763A
Inventor: Earthman, James C. | Mohamed, Farghalli A. | Mishra, Rahul K. | Roy, Indranil
Priority Date: 4 Sep 2007
Priority Number: US8628599B2
Application Date: 4 Sep 2008
Publication Date: 14 Jan 2014
IPC Current: B22F000100 | B22F000102 | C22C000105
US Class: 075252 | 419032 | 428402
Assignee Applicant: The Regents of the University of California
Title: Diamondoid stabilized fine-grained metals
Usefulness: Diamondoid stabilized fine-grained metals
Summary: A stabilized metal or metal composition, preferably a stabilized cryomilled nanocrystalline aluminum (claimed).
Novelty: Stabilized metal or metal composition, preferably stabilized cryomilled nanocrystalline aluminum, comprises nanocrystalline metal particles and diamantane particles
化工/材料
金属材料
8628599
Additional Technologies by these Inventors Tech ID/UC Case 20642/2007-171-0 Related Cases 2007-171-0
美国
