Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Reexamination Certificate
2005-11-01
2005-11-01
Jordan, Charles T. (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
C419S012000, C419S013000, C419S014000, C419S032000, C419S048000, C419S049000, C029S002100, C102S501000, C102S517000, C075S230000, C075S243000, C075S244000, C075S248000, C075S950000, C420S431000, C420S590000
Reexamination Certificate
active
06960319
ABSTRACT:
Disclosed is a flow-softening tungsten alloy having the general formula:in-line-formulae description="In-line Formulae" end="lead"?W100-pAiBjCkDein-line-formulae description="In-line Formulae" end="tail"?wherein W is tungsten; A is one or more elements selected from the group consisting of nickel, iron, chromium and cobalt; B is in or more elements selected from the group consisting of molybdenum, niobium and tantalum; C is one or more of the elements selected from the groups consisting of titanium and aluminum; D is one or more elements selected from the group consisting of boron, carbon, and silicon; i is from about 5 to about 8 weight percent; j is from 0 to about 4 weight percent; k is from about 0.1 to about 4 weight percent; 1 is from 0 to about 0.1 weight percent; and p is greater than or equal to about 7 weight percent and less than or equal to about 20 weight percent. In this alloy p is approximately equal to the sum of i, j, k and 1. A method of preparing this alloy and a kinetic energy penetrator manufactured from it are also disclosed.
REFERENCES:
patent: 3888636 (1975-06-01), Sczerzenie et al.
patent: 3979234 (1976-09-01), Northcutt, Jr. et al.
patent: 4749410 (1988-06-01), Mullendore et al.
patent: 4784690 (1988-11-01), Mullendore
patent: 4981512 (1991-01-01), Kapoor
patent: 4990195 (1991-02-01), Spencer et al.
patent: 5064462 (1991-11-01), Mullendore et al.
patent: H1075 (1992-07-01), Kapoor
patent: 5145512 (1992-09-01), Spencer et al.
patent: H1146 (1993-03-01), Kapoor
patent: 5462576 (1995-10-01), Stuitje et al.
Callaghan John E.
Elbaum Saul
Goldberg Edward
Jenkins Daniel
Jordan Charles T.
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