Abstract: The invention relates to austenitic stainless steels, which resist swelling under irradiation.These steels contain at least one additional element chosen from among tin, germanium and antimony and having a total content from 0.05 to 1% by weight.The presence of one or more of these elements chosen from among germanium, tin and antimony makes it possible to limit the swelling phenomenon. Therefore these steels can be used in nuclear reactors.

Abstract: Directional solidification of Bi and Mn compositions to produce magnetic single domain size MnBi particles with aligned morphologies.

Abstract: An electrically conductive glass sheet used as a fog-resistant automotive window glass sheet. The electrically conductive glass sheet comprises a glass sheet, a pair of busbars, an electrically conductive thin film, and protective coatings. The busbars are formed in spaced relation on the surface of the glass sheet by baking electrically conductive paste printed on the surface of the glass sheet. The electrically conductive thin film formed on the surface of the glass sheet has ends or junctions connected to the busbars in overlapping relation to the surfaces of the busbars, the junctions being covered with the protective coatings. Since the junctions are covered with the protective coatings, good electric conductivity through the junctions is ensured for increased fog resistance, and variations from glass sheet to glass sheet are reduced.

Abstract: The present invention is designated to solve such problems whereby a process for producing a PbMo.sub.6 S.sub.8 type compound superconductor excellent in stoichiometric composition and electric characteristics can be provided.In addition to the above, another purpose of the present invention is to provide a process for producing a PbMo.sub.6 S.sub.8 type compound superconductor with stable electrical characteristics.

Abstract: A process for producing a Ni-steel with high crack-arresting capability is disclosed. The process comprises the steps of:heating a steel material containing 2.0-10% of Ni to a temperature between 900 and 1,000.degree. C.;hot rolling the steel material to provide a cummulative reduction of 40-70% at 850.degree. C. or below, and finishing the rolling operation at 700.degree.-800.degree. C.;immediately after completion of the rolling step, quenching the steel material to a temperature not higher than 300.degree. C.; andsubsequently tempering the quenched slab at a temperture not higher than the Ac.sub.1 point.

Abstract: A composite material is made from alumina-silica type short fibers embedded in a matrix of metal. The matrix metal is an alloy consisting essentially of from approximately 2% to approximately 6% of copper, from approximately 0.5% to approximately 3.5% of magnesium, and remainder substantially aluminum. The short fibers have a composition of from about 35% to about 80% of Al.sub.2 O.sub.3 and from about 65% to about 20% of SiO.sub.2 with less than about 10% of other included constituents, and may be either amorphous or crystalline, in the latter case optionally containing a proportion of the mullite crystalline form. The fiber volume proportion of the alumina-silica type short fibers is between approximately 5% and approximately 50%, and may more desirably be between approximately 5% and approximately 40%. If the alumina-silica short fibers are formed from amorphous alumina-silica material, the magnesium content of the aluminum alloy matrix metal may desirably be between approximately 0.

Abstract: A ladle stream breaker is disclosed, for use in a tundish comprising a pouring zone where a stream of molten metal is poured from a casting ladle through a pouring tube, and a flotation zone downward the pouring zone, where the molten metal free from its inclusions flows out through a vertical outlet tube into a continuous casting mold. The stream breaker consists of a closed box made from a refractory material, which box has a top wall provided with an opening sized to receive the lower end of the pouring tube, and a number of lateral walls each provided with a plurality of openings sized to allow the molten metal injected into the box to escape from this box in the form of a plurality of sub-streams of low energy. The lateral walls of the closed box and their openings are arranged in such a manner that every sub-stream flowing out of its associated opening impinges a wall of the tundish and flows in a direction substantially perpendicular to this tundish wall.

Abstract: Sulfide tarnish inhibiting of silver base alloys selected from the group consisting of Ag-Cu, Ag-Au, and Ag-Cu-Au is achieved by adding to silver base alloys at least one element with passivating ability and with heat of sulfide formation which exceeds the heat of sulfide formation of silver and in the amount which does not exceed 1.5 weight % as substitute of silver, so as to form a thin layer of oxide of the element which is selected from the group consisting of Cr, Ta, Al, Ti and Th. The layer of oxide is thin and does not affect the properties of silver base alloys. The added element, in the event of damage to the oxide layer, forms a sulfide film of the element before formation of silver sulfide, to thereby protect silver base alloys from tarnishing.

Abstract: This invention relates to a wire bonding gold line used for connecting a semiconductor tip electrode with an outside lead portion. This gold wire characteristically contains gold (Au) having a purity level 99.996-99.9995 wt % and 0.0032-0.008 wt % by total weight of said gold wire of germanium (Ge) so that the electric resistance of the wire bonding gold line is reduced, while the mechanical strength such as tensile strength and high temperature strength is excellent and a gold ball can be shaped into the form of a nearly perfect sphere in the connection of the tip electrode.

Abstract: The present invention relates to a highly corrosion-resistant surface-treated steel plate. The steel plate of the present invention comprises a zinc deposition or zinc alloy deposition film as the undercoat deposition layer, a chromate film formed on the undercoat deposition layer and a film of a resin composition formed on the chromate film. This resin composition comprises a base resin formed by adding at least one basic nitrogen atom and at least two primary hydroxyl groups to terminals of an epoxy resin. The resin composition may comprise a polyisocyanate compound as the curing agent. Furthermore, the resin composition may comprise silica or a hardly soluble chromium compound as the additive for improving the corrosion resistance. Moreover, the resin composition may comprise a silane compound as the crosslinking agent for the base resin and silica.

Abstract: A tank furnace for the metallurgical treatment of non-ferrous metals, consisting of a refractory hearth in the form of an inverted arch disposed on perimetral plate assemblies which are able to move in order to compensate for hearth expansion, a containing belt formed of metal box elements, and walls and a crown of refractory material, said elements being separately supported by an external frame and being able to slide relative to each other due to thermal expansion.

Abstract: A system for continuously removing and transporting trimmed edge metal scrap material in the form of a indeterminate length of ribbon from a strip edge trimming or slitting station in a strip processing line to a final disposal station wherein the trimming station can be advantageously disposed in the path of travel of the strip of metal being processed. In a preferred embodiment of the invention, the said system includes a curvilinear enclosed conveyor means, one open end of which is disposed in the area of the trimming station and the other open end of which is disposed adjacent to the disposal station for continuously capturing the trimmed edge metal scrap material from the trimming station as it is cut from the moving strip of metal and then directing it to the disposal station at the proper rate of speed.

Abstract: A multiple orifice injection valve having a stationary block which communicates between the vessel and a sliding plate. The sliding plate is provided with at least one injection port and drive means for rotatably indexing the same in and out of register with the various orifices in the stationary block. Both the stationary block and sliding plate may have special wear features. The sliding plate is held by means of a carrier, and the same urged by a plurality of spring-loaded rockers into pressure face-to-face relationship with the stationary block. The valve can be open by a toggle latch and toggle hinge assembly thereby permitting removal of the sliding plate and/or the stationary block. Injection is provided by a quick disconnect coupling having two injection ports. The one port receives wire or other metallic material in wire form, and the second port injects gas, powdered metals, or other fluid-like materials.

Abstract: A technique for metallizing a substrate while providing stress relief for the metallization on the substrate is disclosed. Chrome conductive metallization (22) is deposited on a top surface (21) of an insulating glass substrate (20). An interior gold conductive metallization (23) is deposited on the chrome, and metallization (24) having a substantial nickel composition is deposited on the gold. Subsequently, an additional outer gold metallization (25) is provided on the nickel, and solder is provided on the additional gold metallization. Prior to the application of solder to the outer gold layer 25, the metallization layers are subjected to anodic bonding temperatures and voltage potentials. The gold layer between the nickel and chrome layers diffuses along the grain boundaries of the nickel and chrome layers, thus reducing the ability to transmit stress through these metallizations induced by the solder.

Abstract: A multi-layer structure that includes a transparent dielectric substrate, a layer of a nickel-containing steel alloy, and a layer of copper and/or chrome.

Abstract: A rapidly-solidified aluminum alloy powder having a nominal composition of 7% Zn, 2.5% Mg, 2% Cu, 0.3% Zr, and 0.3% Cr is used to make a high forming-rate, superplastic, high-strength aluminum alloy. The powder is outgassed, consolidated, and extruded, thereby developing a wide range of particle size distribution of dispersoids in the process, containing respectively zirconium and chromium dispersoids, as well as age hardening precipitates. The consolidated powder is then rolled to 85% reduction to provide a sheet material which is superplastically formed at a temperature in the range of 450.degree. C. to 490.degree. C. and at a rate between 5.times.10.sup.-3 to 5.times.10.sup.-2 per second.

Abstract: A weldable titanium alloy particularly intended for use at high temperatures and under conditions of high stress in aircraft engines, the alloy having the composition 5.6% aluminium, 4% tin, 4% zirconium, 1% niobium, 0.25% molybdenum, 0.5% silicon, 0.05% carbon, optionally containing 0.2% tungsten and being used in the heat treated condition. The heat treatment would normally comprise a solution treatment above the beta transus, typically at 1080.degree. C., and an ageing or stress relieving treatment at a temperature of approximately 650.degree. C. for approximately 24 hours.

Abstract: Lead with a low alpha particle emission is produced by selecting an orebody wherein lead mineral is present in a coarsely disseminated form and substantially free of impurities. The ore is selected from a host rock that is relatively low in alpha emitters, such as a carbonate rock. The ore is mined and is milled such that the lead mineral can be separated from the host rock and any other minerals. The ground ore may be screened into one or more fractions having a narrow range of particle sizes. Each fraction is formed into a fluid suspension, and each suspension is subjected to gravity separation to remove the host rock and any other minerals which substantially contain the alpha particle-emitting substances, and to recover the lead mineral as a concentrate with a low alpha count. The lead concentrate is subjected to a suitable smelting operation, without the introduction of alpha emitters for the recovery of a low alpha lead.

Abstract: An improved tundish is disclosed, for use in combination with a casting ladle and a casting mold to continuously cast metal slabs. This tundish comprises an elongated, flat-bottomed basin known as a flotation box in between a pouring box with a vertical partition and an antivortex box. A first recess is provided in the bottom of the basin just under the partition to prevent any slag formed upstream of the partition from being entrained. The first recess also creates an upward stream rising from the bottom of the recess along the partition downstream the same, which allows optimal inclusion separation and substantial reduction of the dead volume zones in the basin downstream the partition. A second recess from which an outlet nozzle downwardly extends, is also provided in the bottom of the basin adjacent to the end of the flotation box. This second recess forms an antivortex volume above the outlet nozzle, thereby allowing substantial reduction of the metal left in the tundish on every casting sequence.

Abstract: There is provided a high-purity molybdenum target or high-purity molybdenum silicide target for LSI electrodes which comprises a high-purity metallic molybdenum having an alkali metal content of not more than 100 ppb and a radioactive element content of not more than 10 ppb. Further, a process is provided for producing such target comprising a wet purification processing followed by a series of dry processings.