Metal deforming – With cutting
Reexamination Certificate
2011-03-01
2011-03-01
Kastler, Scott (Department: 1733)
Metal deforming
With cutting
C148S559000
Reexamination Certificate
active
07895872
ABSTRACT:
A products having at least a portion thereof with a nanocrystalline microstructure, and methods of producing such products. The method generally entails machining a body to produce a polycrystalline chip having a nanocrystalline microstructure. The chips produced by the machining operation may be in the form of particulates, ribbons, wires, filaments and/or platelets. The chips may be consolidated (with or without comminution) to form a product, such that the product is essentially a nanocrystalline monolithic material consisting essentially or entirely of nano-crystals, or of grains grown from nano-crystals. Alternatively, the chips may be dispersed in a matrix material, such that the product is a composite material in which the chips are dispersed as a reinforcement material. According to a particular aspect, a monolithic article can be formed entirely from a single chip by deforming the chip and/or removing material from the chip.
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Chandrasekar Srinivasan
Compton Walter Dale
Mann James B.
Hartman Domenica N.S.
Hartman Gary M.
Hartman & Hartman P.C.
Kastler Scott
Purdue Research Foundation
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