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| Number | Title | Issue Date |
| 7270782 | Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys Pressure powder metallurgy process for consolidating refractory or rhenium alloys using a reduced temperature and elevated pressure. Rhenium metal has high temperature strength and wear resistance but has a very high melting point as a pure metal and thus is difficu... | 09/18/2007 |
| 7229510 | Manganese alloy sputtering target and method for producing the same A manganese alloy sputtering target characterized in that oxygen is 1000 ppm or less, sulfur is 200 ppm or less and a forged texture is provided, and a method for producing a forged manganese alloy target stably by eliminating the drawbacks of manganese alloy that i... | 06/12/2007 |
| 7226671 | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered met... | 06/05/2007 |
| 7205053 | Re alloy coating for diffusion barrier Disclosed is a Re alloy coating for diffusion barrier, such as a high-temperature equipment member, which comprises an atomic composition of 30% to less than 90% Re; and an atomic composition of 5% to less than 60% X (wherein X is at least one selected from the grou... | 04/17/2007 |
| 7192655 | ReCrNi alloy coating for diffusion barrier Disclosed is a ReCrNi alloy coating for diffusion barrier, such as a high-temperature equipment member, consisting essentially of a ternary alloy and having, except for inevitable impurities, an atomic composition of 20% to 80% Re, an atomic composition of 20% to 60... | 03/20/2007 |
| 7060368 | ReCr alloy coating for diffusion barrier Disclosed is a ReCr alloy coating for diffusion barrier formed on a substrate, such as a high-temperature equipment member, which comprises an atomic composition of 50% to less than 90% Re, with the remainder consisting essentially of Cr except for inevitable impuri... | 06/13/2006 |
| 6902809 | Rhenium tantalum metal alloy The present invention provides a method for preparing a rhenium-tantalum alloy with improved strength and ductility characteristics. The method includes mixing powders of rhenium and tantalum with a weight ration of approximately 97% rhenium to approximately 3% tant... | 06/07/2005 |
| 6895991 | Missile thrust system and valve with refractory piston cylinder An improved pneumatic valve and a missile with an improved thrust directional valve. In one embodiment, a refractory material lining for a pneumatic valve enables better valve operation and better valve performance. A thin-wall cylindrical sleeve of rhenium or other... | 05/24/2005 |
| 6830637 | Large diameter tungsten-lanthana rod A large-diameter tungsten-lanthana rod having an elongated grain structure substantially parallel to the longitudinal axis of the rod is described. The large diameter rod is produced by rolling at a temperature greater than 1400° C. and less than 1700° C. to achie... | 12/14/2004 |
| 6773663 | Oxidation and wear resistant rhenium metal matrix composites An alloy and metal matrix composite (MMC) based on a refractory metal such as rhenium resists oxidation by the inclusion of alloying substances with affinity for oxygen or other oxidizing substances. Rhenium enjoys excellent high temperature strength but oxidizes at... | 08/10/2004 |
| 6749803 | Oxidation resistant rhenium alloys An alloy based on a refractory metal such as rhenium resists oxidation by the inclusion of alloying substances with affinity for oxygen or other oxidizing substances. This alloy has excellent high temperature strength and will resist oxidation. The alloy includes ox... | 06/15/2004 |
| 6746782 | Diffusion barrier coatings, and related articles and processes A barrier coating is disclosed, containing about 15 atom % to about 95 atom % chromium; and about 5 atom % to about 60 atom % of at least one of rhenium, tungsten, and ruthenium. Nickel, cobalt, iron, and aluminum may also be present. The barrier coating can be disp... | 06/08/2004 |
| 6127047 | High temperature alloys High temperature alloys resistant to degradation and oxidation are provided. In accordance with preferred embodiments, alloys comprising from about 0.1 to about 50 atomic percent silicon, from about 10 to about 80 atomic percent aluminum, and at least one... | 10/03/2000 |
| 6039920 | Process for making rhenium-containing alloys A process for making iron, cobalt and/or nickel base alloys containing rhenium. The process involves melting together the components that form the alloys, at least one of the components being a rhenium master alloy having 30 to 70 wt % rhenium, then casti... | 03/21/2000 |
| 5730792 | Opaque ceramic coatings Thick opaque ceramic coatings are used to protect delicate microelectronic devices against excited energy sources, radiation, light, abrasion, and wet etching techniques. The thick opaque ceramic coating are prepared from a mixture containing tungsten car... | 03/24/1998 |
| 5626973 | Magneto-optical layer and magneto-optical recording medium A magneto-optical layer sensitive to a light with a short wavelength such as 400 to 550 nm and having a perpendicular magnetization can be deposited on a substrate at a room temperature. The magneto-optical layer is of a tertiary polycrystalline having a ... | 05/06/1997 |
| 4915733 | Agglomerated metal composite powders Metal powder agglomerates of individual particles comprising (i) more than 70% by weight of one or more metals selected from the group consisting of the elements molybdenum, rhenium and tungsten and (ii) one or more binder metals selected from the group c... | 04/10/1990 |
| 4432794 | Hard alloy comprising one or more hard phases and a binary or multicomponent binder metal alloy A hard alloy including at least one hard phase and a binary or multicomponent binder metal alloy, in which the hard substance comprises a finely dispersed, homogeneous distribution in the binder metal. The hard phase comprises a carbide of a Group IVb, Vb... | 02/21/1984 |
| 4390368 | Flame spray powder A free flowing plasma spray powder of substantially spherical particles having substantially smooth surfaces and of uniform composition consisting essentially of about 4 to about 6 percent by weight rhenium with the balance being tungsten.... | 06/28/1983 |
| 4329174 | Nickel alloy for spark plug electrodes A nickel alloy for spark plug electrodes consisting essentially of, by weight percent, about 0.2 to 3% Si about 0.5% Mn or less at least two metals selected from the group consisting of about 0.2 to 3% Cr about 0.2 to 3% Al and about 0.01 to 1% Y and the balance ni... | 05/11/1982 |
| 4264358 | Semiconducting glasses with flux pinning inclusions A series of amorphous superconducting glassy alloys containing 1% to 10% by volume of flux pinning crystalline inclusions have been found to have potentially useful properties as high field superconducting magnet materials. The alloys are prepared by spla... | 04/28/1981 |
| 4155660 | Dot printing wire A dot printing wire is provided at its tip with a wear-resistant contact made of an alloy selected from the group consisting of alloys composed of two or more platinum group metals, alloys of platinum group metals and transition metals and alloys of plati... | 05/22/1979 |
