Erosion-corrosion resistant nitride cermets

Details Erosion-corrosion resistant nitride cermets Erosion-corrosion resistant nitride cermets

2007-02-13

2007-02-13

Mai, Ngoclan T. (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

C428S539500

Reexamination Certificate

active

10829822

ABSTRACT:
The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein,P is a metal selected from the group consisting of Si, Mn, Fe, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof,Q is nitride,R is a metal selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof,S consists essentially of at least one element selected from Cr, Al, Si, and Y, and at least one reactive wetting aliovalent element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof.

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Kaidash et al., “Corrosion Resistance of Cermets Based on Titanium Nitride,” Poroshkovaya Metallurgiya, vol. 1, No. 337, 1991, pp. 77-81.

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