Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2006-07-11
2006-07-11
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S069100, C164S462000, C164S423000, C148S513000, C148S561000, C148S403000, C148S422000, C148S423000
Reexamination Certificate
active
07073559
ABSTRACT:
A method of producing metal fibers including melting a mixture of at least a fiber metal and a matrix metal, cooling the mixture to form a bulk matrix comprising at least a fiber phase and a matrix phase and removing at least a substantial portion of the matrix phase from the fiber phase. Additionally, the method may include deforming the bulk matrix.In certain embodiments, the fiber metal may be at least one of niobium, a niobium alloy, tantalum and a tantalum alloy and the matrix metal may be at least one of copper and a copper alloy. The substantial portion of the matrix phase may be removed, in certain embodiments, by dissolving of the matrix phase in a suitable mineral acid, such as, but not limited to, nitric acid, sulfuric acid, hydrochloric acid and phosphoric acid.
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Graham Ronald A.
Hebda John J.
O'Larey Philip M.
ATI Properties Inc.
Kerns Kevin
Kirkpatrick & Lockhart Nicholson & Graham LLP
Lin I.-H.
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