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| Number | Title | Issue Date |
| 7360991 | Methods and apparatus for fabricating gas turbine engines Methods and apparatus of fabricating a gas turbine engine component are provided. The method includes selecting a surface of a component to apply a wear-resistant material, applying a formed wear pad fabricated from a wear-resistant alloy and a braze material, and v... | 04/22/2008 |
| 7279229 | Nickel-base braze material and method of filling holes therewith A nickel-base braze material suitable for closing holes in a high temperature component, such as a tip cap hole in a turbine blade. The braze material comprises first and second filler materials and a binder. The first filler material comprises particles of a first ... | 10/09/2007 |
| 7222422 | Method for refurbishing surfaces subjected to high compression contact A process for refurbishing a worn surface of a shroud support component of a turbomachine, as well as a shroud support component refurbished with the process. The process generally entails removing a surface region of the worn surface so as to define a repair surfac... | 05/29/2007 |
| 7166759 | Remediation method of media and iron powder for dehalogenation of hydrogenated hydrocarbons The invention provides a remediation method of soil, water and/or gases by prompt dehalogenation of halogenated hydrocarbons by allowing the halogenated hydrocarbons contained at least in one of the soil, water and/or gases to contact an iron powder containing about... | 01/23/2007 |
| 7010987 | Non-destructive method of detecting defects in braze-repaired cracks It is disclosed a method of detecting and quantifying subsurface defects (10) in an article (1) made of high strength non magnetisable materials after the use in a high temperature environment. A crack (8) or gap on a surface (7) of the a... | 03/14/2006 |
| 6530971 | Nickel-base braze material and braze repair method A braze material and method for repairing an article, such as a gas turbine engine combustor liner formed from a nickel-base or cobalt-base superalloy. The braze material is composed of a nickel-base braze alloy that is preferably in powder form and may b... | 03/11/2003 |
| 6361581 | Thermal spraying composite material containing molybdenum boride and a coat formed by thermal spraying A protective coat formed by thermal spraying, and having an outstanding durability against corrosion by a molten light alloy. A thermal spraying composite material used to form such a coat contains from about 30 to about 70% by weight of molybdenum boride... | 03/26/2002 |
| 6296682 | Iron-based powder blend for use in powder metallurgy The object of the present invention is to provide an iron based blended powder for powder metallurgy that can provide a reformable sintered article that has a good sliding property with less variation in the property and a good impact resistance. More spe... | 10/02/2001 |
| 6284014 | Metal matrix composite An extrudable and weldable matrix alloy composite comprising: a) a base material metal of about 50 to 99.9% by weight, b) boron carbide or silicon carbide of about 0.1 to 50% by weight, c) less than about 3.0% by weight of at least one metal having an int... | 09/04/2001 |
| 6261336 | Stable aqueous iron based feedstock formulation for injection molding A composition for forming molded metal containing articles having improved stability. More particularly, a corrosion resistant composition for forming injection molded articles having a sodium silicate corrosion inhibiting additive. The corrosion inhibito... | 07/17/2001 |
| 6193930 | Brazing alloy Two or more metal or alloy parts (such as catalytic convertor parts) are brazed by melting a homogeneous nickel-based brazing filler alloy containing boron in an amount of not more than 0.2% by weight; converting the molten alloy to a powder of uniform co... | 02/27/2001 |
| 6139765 | Magnetic powder, permanent magnet produced therefrom and process for producing them A magnetic powder and a permanent magnet are provided which have magnetic properties enhanced by magnetic interaction. Disclosed are a magnetic powder comprising a mixture of two or more powders including a magnetic powder A (residual magnetic flux densit... | 10/31/2000 |
| 6110252 | Powder for corrosion resistant sintered body having excellent ductility Powder is composed of ferrite stainless steel containing: C: ࣘ0.1 wt %, Si: ࣘ3.0 wt %, Mn: ࣘ0.30 wt %, Ni: ࣘ2.0 wt %, Cr: 11 to 22%, Mo: ࣘ3.0 wt %, and the rest being substantially Fe. The metal compound of B, preferably CrB, is added to the pow... | 08/29/2000 |
| 6074454 | Lead-free frangible bullets and process for making same The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or copper alloy powd... | 06/13/2000 |
| 6060181 | Low loss magnetic alloy A more resistive, low loss magnetic alloy containing at least 80% cobalt, at least 10 wt % iron, about 2.5 wt % nickel, and about 0.3-2 wt % impurities including boron and manganese. The alloy is well suited for deposition upon dielectric substrates such ... | 05/09/2000 |
| 6054495 | Synthesis of unagglomerated metal nano-particles at membrane interfaces The present invention relates to a powder of unagglomerated metallic particles. More particularly, the present invention relates to a powder of unagglomerated metallic particles having an average diameter of about 1-100 nm and the process for making the s... | 04/25/2000 |
| 5981081 | Transition metal boride coatings A new family of transition metal boride coatings having excellent wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, transition metal boride particles dispersed in a metal matrix, the particles constituting from about 30 to... | 11/09/1999 |
| 5976695 | Thermally sprayable powder materials having an alloyed metal phase and a solid lubricant ceramic phase and abradable seal assemblies manufactured therefrom Thermally sprayable powders for the formation of abradable seals and abradable seals formed by thermally spraying the powders include an alloyed metal phase material and a solid lubricant ceramic phase material. The alloyed metal phase material includes a... | 11/02/1999 |
| 5972070 | Sintered friction material, composite copper alloy powder used therefor and manufacturing method thereof A sintered friction material includes a copper alloy base and hard particles. The copper alloy base includes copper and at least one of, and preferably both, Zn and Ni within a total range of 5 to 40 wt % of the copper alloy base. The hard particles are u... | 10/26/1999 |
| 5966585 | Titanium carbide/tungsten boride coatings A new family of titanium carbide/tungsten boride coatings having excellent wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, titanium carbide particles and tungsten boride precipitates dispersed in a metal matrix, the two ... | 10/12/1999 |
| 5938814 | Iron based powder mixture for powder metallurgy An iron based powder mixture for powder metallurgy is provided which can produce a sintered material having by far higher machinability and sliding properties than conventional sintered materials, and also a sintered material containing alloy elements but... | 08/17/1999 |
| 5936170 | Sintered liquid phase stainless steel, and prealloyed powder for producing same, with enhanced machinability characteristics A blend of pre-alloyed stainless steel powder for use in producing sintered stainless steel, said powder consisting essentially of, by weight, up to 0.05% carbon, 22% to 26% chromium, 10% to 24% nickel, 2.7% to 5% molybdenum, 0.1% to 1% boron, up to 2.0% ... | 08/10/1999 |
| 5910376 | Hardfacing of gamma titanium aluminides A gamma titanium aluminide substrate is hardfaced by providing a hardfacing material with a titanium-aluminum, gamma-titanium aluminide alloy component having a composition of titanium and about 42 to about 49 atomic percent aluminum, and a nonmetallic po... | 06/08/1999 |
| 5902943 | Aluminium alloy powder blends and sintered aluminium alloys The invention relates to an aluminum powder blend and sintered components produced from the aluminum powder blend. The powder is based on the precipitation hardenable 7000 series Al-Zn-Mg-Cu alloys with trace addition of lead or tin. The powder blend comp... | 05/11/1999 |
| 5733664 | Matrix for a hard composite A matrix powder for formation along with an infiltrant into a matrix for use as a wear element or for use in retaining at least one discrete hard element. The matrix powder includes crushed sintered cemented tungsten carbide particles. The composition of ... | 03/31/1998 |
| 5698006 | Nickel-aluminum intermetallic compounds containing dopant elements The improved intermetallic compounds represented by xNiAl+X (x=50.5-63.5), with dopant element X being selected from among Ti, Fe, V, W, Cr, Cu, Mo, Nb, Ta, Hf, Zr and B, are lightweight and have satisfactory oxidation resistance and high-temperature stre... | 12/16/1997 |
| 5690716 | Thermal spray powder A thermal spray powder for producing high hardness, low friction, wear resistant coatings on friction surfaces, comprising a blend of an agglomerated molybdenum/dimolybdenum carbide powder and a self-fluxing NiCrFeBSi alloy powder.... | 11/25/1997 |
| 5607887 | Method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products The present invention provides a method for preparing a ceramic mixed-oxide of at least two metals including mixing an alloy with a ceramic oxide. The alloy including a metal selected from the group consisting of aluminum, calcium, lithium, magnesium, sil... | 03/04/1997 |
| 5605559 | Alloy steel powders, sintered bodies and method Alloy steel powders capable of obtaining high strength in a sintered state and having excellent compacting compressibility and methods of manufacturing a sintered body. The alloy steel powder comprises, by wt %, about 0.5-2% of Cr, not greater than about ... | 02/25/1997 |
| 5599377 | Mixed iron powder for powder metallurgy A mixed iron powder for powder metallurgy containing less than about 0.1 wt % of Mn, about 0.08 to 0.15 wt % of S, a total of about 0.05 to 0.70 wt % of one or more compounds selected from MoO3 and WO3, about 0.50 to 1.50 wt % of gra... | 02/04/1997 |
| 5595608 | Preparation of permanent magnet A permanent magnet which contains R, T and B as main ingredients wherein R is Y or a rare earth element and T is Fe or Fe and Co and has a primary phase of R2 T14 B is produced by compacting a mixture of 60 to 95 wt % of a primary ph... | 01/21/1997 |
| 5486224 | Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets To a fine R--Fe--B alloy powder comprised predominantly of 10-30 atomic % of R (wherein R stands for at least one element selected from rare earth elements including yttrium), 2-28 atomic % of B, and 65-82 atomic % of Fe in which up to 50 atomic % of Fe m... | 01/23/1996 |
| 5464463 | Heat resistant aluminum alloy powder heat resistant aluminum alloy and heat and wear resistant aluminum alloy-based composite material Disclosed are heat resistant aluminum alloy powder and alloy including Ni in an amount of from 5.7 to 20% by weight, Si in an amount of from 6.0 to 25% by weight, at least one of Fe in an amount of from 0.6 to 8.0% by weight and Cu in an amount of from 0.... | 11/07/1995 |
| 5443617 | Powdery raw material composition for a permanent magnet The present invention aims at providing a powdery raw material composition for a permanent magnet superior in the magnetic properties and easy in preparation, a magnetically anisotropic permanent magnet, and a method for producing the magnet by use of the... | 08/22/1995 |
| 5401292 | Carbonyl iron power premix composition A carbonyl iron powder (CIP) premix composition suitable for metal injection molding is provided herein. The composition comprises (a) CIP having a particle size in the range of about 0.2-7 microns, preferably about 0.2-5 microns, and a narrow particle si... | 03/28/1995 |
| 5393483 | High-temperature fatigue-resistant nickel based superalloy and thermomechanical process A nickel based superalloy composition is disclosed that provides increased high temperature stress-rupture strength and improved resistance to fatigue crack propagation at elevated temperatures up to about 760° C. The composition is comprised of, by weig... | 02/28/1995 |
| 5368630 | Metal powder compositions containing binding agents for elevated temperature compaction An improved metallurgical powder composition capable of being compacted at elevated temperatures is provided comprising an iron-based powder, an alloying powder, a high temperature compaction lubricant, and a binder. The selected binders of this invention... | 11/29/1994 |
| 5358547 | Cobalt-phosphorous-base wear resistant coating for metallic surfaces A wear resistant coating includes a mixture or compound of Cobalt and Phosphorous either alone or mixed with one or more alloys to provide a coating for metallic surfaces rendering the metallic surfaces more resistant to wear. A preferred combination of C... | 10/25/1994 |
| 5356453 | Mixed powder for powder metallurgy and sintered product thereof A mixed powder for powder metallurgy comprising a Fe powder and an alloy powder mixed together in which the mean particle size and the solidus line temperature of the alloy powder and the amount of the liquid phase formed during sintering are so defined a... | 10/18/1994 |
| 5332422 | Solid lubricant and hardenable steel coating system A plasma sprayable powder for coating surfaces such as cylinder bores of an internal combustion engine, comprising grain size agglomerates of (i) a plurality of solid lubricant particles selected from the group consisting of graphite, MoS2, BN,... | 07/26/1994 |
