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7425353 |
Magnetic medium recording performance can be enhanced by irradiating a magnetic medium with ions having an acceleration voltage of between 10 keV and 100 keV to induce exchange coupling between grains of the magnetic medium. The magnetic...
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7405086 |
A manganese-implanted silicon substrate exhibits ferromagnetism and a Curie temperature above room temperature when magnetized. The implant is done at a temperature of between about 250 C and about 800 C, while the manganese concentratio...
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7125458 |
A simple and direct method of forming a SiGe-on-insulator that relies on the oxidation of a porous silicon layer (or region) that is created beneath a Ge-containing layer is provided. The method includes the steps of providing a structur...
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6589364 |
A silicon-germanium alloy of high crystal quality and containing uniform concentrations of dopant and germanium is formed by applying laser energy to a doped amorphous/polysilicon germanium layer overlying epitaxial silicon. Energy trans...
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6454877 |
A method and apparatus are provided for treating the surface of a metal body through phase transformation, ion implantation, and/or diffusion and to form new phases of metallic materials. The method and apparatus have been shown to be pa...
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6368425 |
Techniques are disclosed for improving the tribology between an air bearing surface of a magnetic recording head and a magnetic recording medium. In addition, techniques are described for reducing resistance to wear and corrosion of the ...
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6314764 |
A method of manufacturing a 1-inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using ni...
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6314763 |
A method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using ...
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6214479 |
This invention provides a covered member which possesses a high bond strength of a base material and a covering film, and has a smooth surface. The covered member comprises a base material and a covering film and the surface of the base ...
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6162513 |
A process for modifying a metal surface by irradiating energized ion particles onto a metal surface while blowing a reactive gas directly on the metal surface under a vacuum condition. The process can achieve the effect of decreasing the...
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6136385 |
A surface reforming method of a metal product, wherein a platinum film is formed on the surface of a metal product by injecting onto that surface a nitrogen ion, a carbon ion and a platinum ion in that order, and then injected onto said ...
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6083567 |
A surface of a substrate is vacuum coated with a material by sequentially implanting and depositing ions from a single ion source. First ions of the coating material are initially implanted into the surface of the substrate to form an im...
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5900126 |
An improved magnetic-recording disk and a process for manufacturing magnetic-recording disks are disclosed. A precision cold-rolled authentic stainless steel is the substrate for a magnetic-recording disk. The surface of the substrate ma...
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5879760 |
A method for protecting a titanium aluminide substrate against environmental degradation at higher temperatures, which comprises applying a layer of a ductile titanium alloy to at least one exterior surface of the substrate and applying ...
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5859404 |
A plasma heating apparatus for heating a workpiece includes a chamber of sufficient size to receive a workpiece therein and a source of a reduced gas pressure within the chamber of from about 0.01 to about 100 millitorr. The plasma heati...
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5851315 |
A process for implanting radioisotope ions into a substrate to create a radioisotope source, utilizing the chemical binding of selected ions to the surface of the substrate. Extraneous material not chemically bound to the substrate is re...
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5735974 |
A part of a light-water reactor, for example, a cladding for a light-water reactor has at least a portion made of an intermetallic compound, such as Ni 3 Al, Ni 2 Al 3 , TiAl, Ti 3 Al, Pt 2 Si, PtSi, FeAl 2 , CoAl, and MoSi 2 , there...
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5658394 |
Loom components such as reed dents or weft brake lamellae that, during operation, are exposed to frictional abrasion by a moving weft thread, are made of cold rolled strip steel or of refined nitrided steels. The components are then expo...
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5651839 |
A process for producing coherent twin, incoherent twin, low angle tilt, high angle tilt or CSL grain boundaries in materials is described. A planar material or a planar substrate coated with the polycrystalline material is heated in sele...
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5520966 |
A process for increasing the corrosion resistance of honeycomb core panel construction by using an ion beam enhanced deposition. In one aspect of the invention, molybdenum ions are embedded a predetermined depth into the front and back s...
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5423923 |
Deposition of a hard film of Ti-Si-N composite material on a substrate is carried out by using a source of evaporation possessing a composition of Ti a Si b (wherein "a" and "b" stand for atomic percentages respectively falling in the ...
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5413642 |
An alloy has less stable oxides, e.g. nickel oxide, chromium oxide, and iron oxide on a surface (FIG. 1 ). The material has specific reaction elements such as titanium and aluminum in a relatively low concentration throughout the alloy. ...
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5405458 |
Deposition of a hard film of Ti--Si--N composite material on a substrate is carried out by using a source of evaporation possessing a composition of Ti a Si b (wherein "a" and "b" stand for atomic percentages respectively falling in th...
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5199999 |
A method for ion implantation of relatively high concentrations of alloying elements into a metal target without sputtering the target, in which the target is precoated with a layer of preselected thickness of a light, low sputtering yie...
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5192618 |
The present invention relates to the improvement of corrosion wear resistance of iron-manganese (FeMn) film by ion implantation and subsequent annealing without substantially affecting the magnetic properties of the magnetic material. A ...
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5098483 |
Improved methods for the treatment of spherical surfaces designed to improve their physical and chemical properties are disclosed. The methods include the provision of a fixture by which a plurality of spherical workpieces are presented ...
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4915746 |
A method of forming internal high temperature barriers in structural metals is provided. The barriers prevent movement of boundaries and dislocations inside the structural metal, and make strutural metals creep resistant at high homologo...
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4872922 |
A method and an apparatus for the ion implantation of spherical surfaces are disclosed. The method essentially includes the provision of a fixture by which a plurality of spherical workpieces are presented to a large area ion beam in a w...
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4855026 |
A sputter enhanced ion implantation process is disclosed that uses to advantage the ion beam sputtering phenomenon to deposit layers of coatings on surfaces of interest simultaneously with ion implanting that surface, and that without th...
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4775429 |
A large diameter high strength hot rolled steel bar consisting of a low alloy steel having a carbon content of 0.3 to 0.9% and a metallurgical structure with a interlammelar spacing of 0.05 to 0.15 μm, and having a diameter of at least ...
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4743308 |
A metal alloy with a treated surface and the process of effecting the treated surface are disclosed whereby its ion release under static, stress and crevice corrosion and corrosive wear conditions is reduced. The metal alloy preferably i...
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4725321 |
The present invention relates to a method for cooling a steel strip in a continuous-annealing furnace. Conventionally, the steel strip is cooled by a water medium and, thus, oxidation is inevitable. Recently developed roll cooling method...
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4724014 |
The present invention relates to a method for cooling a steel strip in a continuous-annealing furnace. Conventionally, the steel strip is cooled by a water medium and, thus, oxidation is inevitable. Recently developed roll cooling method...
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4713124 |
A method and oven equipment for cooling a charge after thermal treatment. The charge, which is located within a closed chamber, is cooled by blowing in cooling gas. The cooling occurs as a function of the actual conditions of the charge ...
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4693760 |
A process for preventing surface discoloration in orthopedic implants made of titanium and its alloys is disclosed. Such surface discoloration is apt to occur when the orthopedic implants are ion implanted to improve their wear character...
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4620884 |
The structure of the present invention rapidly heats metal strapping, wire and the like to a temperature in the range of about 800° F. up to about 1800° F. while maintaining accurate control on the final temperature using a simple cont...
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4620883 |
A metallic object is heat treated by suspending it in a fluidizable bed through which a gas can be passed at a volume/time rate to fluidize it. The temperature of the bed is varied in accordance with a temperature curve having regions of...
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4542009 |
Intercalatable layered or lamellar stable transition metal chalcogenides, such as CrS 2 , usable as cathode active materials and intercalatable layered or lamellar stable alkali metal-transition metal chalcogenides, such as LiCrS 2 , usa...
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4490190 |
A process for thermochemical treatment of metals with accurate control of the treatment temperature in a furnace having a structure similar to that of a classic furnace for thermal or thermochemical treatment in a rarified atmosphere, eq...
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4409042 |
A method and apparatus for measuring the temperature of a moving elongated article is disclosed wherein radiant heat is sensed eminating from the focal axis or point of a parabolic or paraboloidal reflector beside which the article moves...
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4404043 |
In a method for continuous heat treatment of separated elongated metallic material said material is conveyed stepwise through a single furnace chamber. Said furnace chamber comprises a heating section and an adjacent holding section. In ...
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4362578 |
This invention relates to a process and apparatus for hot working metals whereby a finer and more uniform grain structure is produced in the wrought product. In conventional hot working operations, the workpiece is initially heated to an...
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4352698 |
A process for improving the wear resistance of metals, comprising the operation of implanting into a metal article the wear resistance of which is to be improved ions of a material which is capable of forming within the article oxide com...
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4326897 |
An apparatus and method is provided for heat treating a tubular type heat exchanger. A heat fluid is passed through the tube bundle in order to heat the exchanger from within.
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4321097 |
A process and apparatus for cleanly and efficiently fabricating winged lawn mower blades from unfinished milled blade blanks. The unfinished blades are positioned in a magazine and fed one after the other to a heating station where they ...
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4168183 |
This is a process for improving the fatigue properties of structures which have dislocations or deformed regions in the surface layers. Solute is diffused into this surface region and inhibits the atomic movements which lead to initiatio...
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4046599 |
Steel wire rod leaving the last stand of a rolling mill is quenched to between 850° C and a temperature corresponding to the nose of the curve representing the start of the transformation of austenite to ferrite-pearlite plotted with re...
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3988955 |
A coated steel product, namely, a cutting instrument such as a band saw blade, in which the body of the blade is of steel, the tooth tip is of impulse hardened steel and the tip is covered with a coating of titanium carbide or refractory...
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3925116 |
A superhard martensite and method of making the same wherein ions of an element which is insoluble in iron are implanted into or/and planted onto a steel substrate. The steel is then heat treated, resulting in very fine grained martensite.
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3537917 |
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