Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A process for producing a ductile, high-strength, oxide dispersion hardened sintered (ODS) alloy of a base metal having a high melting point (Tm), comprising: forming a powder mixture by blending a powdered form of said base metal with a dispersoid comprised of a metal oxide powder, said metal oxide powder possessing a higher bond energy value than the oxides of said base metal at temperatures less than 0.5 Tm; pressing said powder mixture into a pressed blank form; and sintering said pressed blank form at temperatures reaching 0.7-0.9 Tm such that said dispersoid is decomposed into its constituent components, and said constituent components are homogeneously dispersed throughout said base metal.
Claim 2
Dependent Claim
110 words
A process for producing a ductile, high-strength, oxide dispersion hardened sintered (ODS) alloy of a base metal having a high melting point (Tm), comprising: forming a powder mixture by blending a powdered form of said base metal with a dispersoid comprised of a metal oxide powder, said metal oxide powder possessing a higher bond energy value than the oxides of said base metal at temperatures less than 0.5 Tm; pressing said powder mixture into a pressed blank form; and sintering said pressed blank form at temperatures reaching 0.7-0.9 Tm such that said dispersoid is decomposed into its constituent components, and said constituent components are homogeneously dispersed throughout said base metal.
Claim 3
Dependent Claim
33 words
A process for producing a ductile, high-strength, oxide dispersion hardened sintered (ODS) alloy according to claim 1, wherein said ODS alloy includes a small percentage of a mixed-crystal phase of said base metal.
Claim 4
Dependent Claim
35 words
The process according to claim 1, wherein said sintering step includes evaporating part of the oxygen present in said ODS alloy from the surface of said pressed blank as an oxide of said base metal.
Claim 5
Dependent Claim
70 words
An ODS alloy produced according to claim 1, wherein said base metal comprises a metal from the group consisting of niobium or tantalum; said ODS alloy contains a small percentage of oxygen; and said metal oxide powder consists of in the range of 0.2-0.5% by weight of said ODS alloy of an oxide of a metal from the group consisting of Ti, Hf, Ba, Sr, Zr, Ca, Y, or La.
Claim 6
Dependent Claim
39 words
An ODS alloy produced according to claim 1, wherein said base metal comprises niobium; said alloy contains dissolved oxygen; and said metal oxide powder consists of TiO 2 in the range of 0.2-1% by weight of said ODS alloy.
Claim 7
Dependent Claim
39 words
An ODS alloy produced according to claim 1, wherein said base metal comprises niobium; said alloy contains dissolved oxygen; and said metal oxide powder consisting of ZrO 2 in the range of 0.2-1.5% by weight of said ODS alloy.
Claim 8
Dependent Claim
70 words
An ODS alloy produced according to claim 3, wherein said base metal consists of metal from the group consisting of niobium or tantalum; said ODS alloy contains a small percentage of oxygen; and said metal oxide power consists of in the range of 0.2%-0.5% by weight of said ODS alloy of an oxide of a metal from the group consisting of Ti, Hf, Ba, Sr, Zr, Ca, Y, or La.
Claim 9
Dependent Claim
38 words
An ODS alloy produced according to claim 3, wherein said base metal comprises niobium; said alloy contains dissolved oxygen; and said metal oxide powder consists of TiO 2 in the range of 0.2-1% by weight of said alloy.
Claim 10
Dependent Claim
39 words
An ODS alloy produced according to claim 3, wherein said base metal comprises niobium; said alloy contains dissolved oxygen; and said metal oxide powder consisting of ZrO 2 in the range of 0.2-1.5% by weight of said ODS alloy.