Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Consolidation of powder prior to sintering
Reexamination Certificate
2007-05-15
2007-05-15
King, Roy (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Consolidation of powder prior to sintering
C419S039000
Reexamination Certificate
active
10681009
ABSTRACT:
The present invention relates to a method of fabricating ultra-fine grain cermet alloys with a homogenous solid solution grain structure. More particularly, the invention relates to a method of fabricating an ultra-fine TiC-base cermet alloy with a homogenous solid solution structure which does not comprise a core-rim structure in the carbide grain.The object of the present invention is to provide a method of fabricating a TiC-base cermet alloy without the core-rim structure.The above objects of the present invention could be achieved by employing a conventional sintering process (vacuum sintering) of (Ti,TM)C carbide obtained from a mechano-chemical synthesis (high energy ball-milling) from milling the powders of Ti, TM, Ni and Co metals.
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Cho Young Whan
Park Jong Ku
Shim Jae Hyeok
Harness Dickey & Pierce PLC
King Roy
Korea Institute of Science and Technology
Smith Nicholas A.
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