Abstract: In the production of stable dispersoid titanium, carbide strengthened copper by fusion metallurgy, refractory dispersoid particles are formed in situ within the copper melt by reaction between specifically selected components including nickel within the melt. The components are characterized by novel wetting relationships, by which the refractory dispersoid is maintained as such within the melt. The resulting composite material has been found to have an unusual association of high electrical conductivity and high temperature strength, by virtue of which novel electromechanical switches and the like are possible.

Abstract: A mold for continuous casting made of a copper alloy having been subjected to 15 to 40% cold working, said alloy consisting of copper as main constituent and an addition of 0.18 to 0.85% by weight of tin, and, if desired, several other metal components, the alloy having a high softening temperature and high-temperature strength, whose numerical values are given by specific formulas in which the thermal conductivity .lambda. is a determining factor which, in itself, is dependent on the construction of the mold, operating conditions etc.

Abstract: A superconductor having an equiaxed fine grain beta-tungsten crystalline structure found to have improved high field critical current densities is prepared by sputter-depositing superconductive material onto a substrate cooled to below 200.degree. C. and heat-treating the deposited material.

Abstract: A method of manufacturing semiconductor devices is disclosed which includes the steps of forming an insulating film on one surface of a semiconductor substrate, removing the insulating film selectively to expose at least a portion of one surface of the semiconductor substrate, forming a low temperature oxide film containing a first diffusion source which has a higher etch rate than the insulating film onto at least a part of the exposed surface while leaving the rest of the surface exposed, and heating the substrate to diffuse the first diffusion source film from the oxide film into the substrate and to diffuse a second diffusion source through the exposed surface into the substrate thereby at least two diffused regions can be formed on the substrate without relative displacement.

Abstract: A metallization system for metallurgically bonding a semiconductor die to metallic conducting slugs as terminals at the same time, and at the same temperature, that a surrounding glass sleeve is hermetically sealed to the conducting slugs for forming a zener diode, for example, is disclosed. The metallization system comprises a combination of aluminum, tin and palladium, for bonding to molybdenum, the aluminum being vapor deposited followed by a vapor co-deposition of aluminum and tin and further followed by a vapor deposited layer of palladium.

Abstract: Processing copper base alloys to improve the stress corrosion resistance thereof. Copper base alloys containing from 12.5 to 30% nickel and 12.5 to 30% manganese are subjected to a duplex aging treatment in order to improve the stress corrosion resistance thereof.

Abstract: A brass alloy consisting essentially of 57 to 62% by weight copper, 1 to 4% by weight lead and the balance zinc has improved machinability in terms of allowing high coating speeds or affording reduced coating tool wear, especially when the alloy is machined upon an automatic lathe, by the inclusion therein of 0.15 to 0.20% by weight each of tin and magnesium.

Abstract: The workability of a Group VIA metal, such as molybdenum, or an alloy of a Group VIA metal is improved by heat treating the Group VIA metal or alloy of the Group VIA metal in an environment for causing particles to be formed in the Group VIA metal or alloy of the Group VIA metal, and cooling the Group VIA metal or alloy of the Group VIA metal at a rate sufficiently rapid to prevent formation of particles large enough to cause embrittlement thereof. A ductile, recrystallized molybdenum or alloy thereof may thereby be produced.

Abstract: A new high temperature as-cast austenitic stainless steel is disclosed which is particularly suited for exhaust valve applications in automotive engines. The austenitic steel has improved creep strength, fatigue resistance, ductility, hardness and tensile strength at a temperature level of at least 1700.degree.F. The new steel has a composition, by weight percentage, within the following limits: carbon 0.35-0.95, manganese 2.5-4.0, chromium 16.0-19.0, nickel 10.0-12.0, molybdenum 7.0-8.0, silicon 2.5 max., copper 1.0 max., cobalt 3.0 max., other elements each no greater than 0.2 max. and all other elements as a total no greater than 3.5 max., the remainder being iron.

Abstract: Solution hardened alloys are formed by using at least two solutes which form associated solute pairs in the solvent metal lattice. Copper containing equal atomic percentages of aluminum and palladium is an example.

Abstract: A heat treatment of nine percent nickel steel including carburizing, double normalizing, tempering, subcooling and then tempering to provide a steel having useful mechanical properties at extremely low temperatures.

Abstract: Disclosed is a composite coating for wear surfaces comprising a layer of vapor deposited titanium nitride overlying a layer of titanium carbide. The composite coating is formed by successive chemical vapor depositions of titanium carbide and titanium nitride on a heated substrate.

Abstract: In a method of fabrication of nuclear reactor components such as fuel cans and pressure tubes, use is made of zirconium alloys such as Zircaloy 2 or Zircaloy 4 having an oxygen content of 0.14 to 0.25 % by weight. The components are subjected to an annealing operation at a temperature within the range of 400.degree. to 750.degree.C and especially 525.degree. to 750.degree.C over a period of approximately two hours, thus resulting in recrystallization.

Abstract: A process for providing a tungsten carbide wear surface to wear parts with relatively large wearing surfaces employs treated and nickel plated tungsten carbide tiles arranged in a matrix and brazed to a surface to be protected by employing low temperature brazing.

Abstract: An alloy containing: aluminum, zinc, manganese, titanium, zirconium and doping agents, with the weight percentage of the components being as follows: aluminum 2-12; zinc, 0.01-2.5; manganese, 0.01-2.5; titanium, 0.0001-0.5; zirconium, 0.002-2.0; beryllium, up to 0.1; iron, up to 0.01; nickel, up to 0.001; silicon up to 0.08; copper, up to 0.04; and magnesium, the balance.

Abstract: This invention provides bearing parts and a bearing steel characterized by rolling contact fatique life many times that of bearing parts and steels now in use. The steel composition is broadly about 0.7 to 1.0% carbon, up to 0.50% silicon, up to 0.50% manganese, about 3.75 to 4.75% molybdenum about 3.75 to 4.50% chromium, about 0.20 to 1.00% vanadium and the balance iron with usual impurities in ordinary amounts.

Abstract: A heating system utilizing a closed oil system and a friction element for heating the oil as the oil is forced through the element. The oil's path is from a storage tank through the friction element, then to the radiation units and then is returned to the storage tank. A high temperature path and a low temperature path are provided to improve comfort control.The heating element is formed of woven stainless steel which is compressed in a mold to obtain sufficient strand density to produce a high heat of friction.

Abstract: There is disclosed a method for producing austenitic ferrous alloys containing from 21-45% manganese and from 10-30% chromium by exposing the alloys in solid form to nitrogen or nitrogen compounds at a temperature of at least 1700.degree.F for a time period sufficient to raise the nitrogen content of at least the surface of the alloy to at least 0.85%.

Abstract: A tough abrasion-resistant refrigeration-hardenable white cast iron containing as its essential alloying constituents about 2.5% to about 3.5% carbon, about 2.5% to about 3.5% manganese, about 12% to about 22% chromium, about 1% to about 2% silicon, about 1.5% to about 3.0% molybdenum, about 1% to about 2% copper, and the balance iron along with conventional residual elements and incidental impurities present in usual amounts.

Abstract: The friction surface of a cast iron side wall member for a rotary piston engine is hardened by iontriding in an electrical glow discharge in a gas atmosphere containing nitrogen, after coating the areas not to be hardened, to inhibit glow discharge at those areas.