Hard films, multilayer hard films, and production methods...

Details Hard films, multilayer hard films, and production methods... Hard films, multilayer hard films, and production methods...

2006-02-07

2008-10-28

Turner, Archene (Department: 1794)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic materials only containing at least one metal atom

C106S286200, C106S286500, C106S286800, C106S287100, C106S287170, C106S287190

Reexamination Certificate

active

07442247

ABSTRACT:
A hard film contains [(Nb1-d,Tad)aAl1-a](C1-xNx), [(Nb1-d,Tad)a,Al1-a-b-c,Sib,Bc](C1-xNx), [(Cr,V)p(Nb,Ta)q(Al,Si,B)r](C1-xNx), or [(Ti,Cr,V)p(Nb,Ta)q(Al,Si,B)r](C1-xNx), in which the atomic ratios satisfy the following conditions: 0.4≦a≦0.6, 0<b+c≦0.15, 0≦d≦1, 0.4≦x≦1, provided that one of “b” and “c” may be zero but both of them are not simultaneously zero, p+q+r=1; pTi+pCr+pV=p; qNb+qTa=q; rAl+rsi+rB=r, 0.05≦q, 0.5≦r≦0.73, 0≦rsi+rB≦0.15, and 0.4≦x≦1.0, provided that when pTiis greater than zero, the total of pCr, pV, rSi, and rBis greater than zero.

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