Abstract: An improved anode assembly for an aluminum electrolysis cell is formed by the process of shaping an anode 10 and a cermet connector 12 from powders, machining said articles, and sintering said articles. The cermet connector mates with the anode via a threaded joint located at its region of high temperature 14 during operation thereof to avoid excessive ohmic losses. Mechanical support can be provided by the threaded joint or through the use of separate mechanical suspension bars 22.

Abstract: Titanium diboride graphite composite articles are produced by mixing TiO.sub.2, petroleum coke and a binder to form a plastic dispersion. Articles are shaped by molding or extrusion and baked to carbonize the binder to form a baked carbon-TiO.sub.2 composite. The article is impregnated with a molten or dispersed boron compound, then heated to drive TiB.sub.2 forming reaction. The article is then further heated to a graphitizing temperature to form a graphite-TiB.sub.2 composite useful as a cathode component in a Hall aluminum reduction cell.

Abstract: Carbon or graphite is protected against oxidation by application of a solution comprising monoammonium phosphate, zinc orthophosphate, phosphoric acid, boric acid, cupric oxide, wetting agent in water.

Abstract: A composite electrode for an arc smelting furnace comprising a water cooled aluminum upper clamped section 12, a hollow metal nipple 42, protected by refractory rings 46 in the unclamped area and a consumable graphite electrode 54.

Abstract: Method of manufacture of discs of fiber-reinforced composite comprising layers of segments with axial and circumferential fiber alignment for superior stiffness and resistance to radial and circumferential stresses in the plane of the disc.

Abstract: Amorphous carbon bodies forming a lengthwise series horizontal string or column 26 are converted to graphite by the Joule effect in a semi-cylindrical metal shell 20 with a refractory lining 22 and containing particulate thermal insulation medium 28. When the conversion to graphite is complete the insulation medium is dumped through the bottom of the metal shell into a hopper 50 and transferred for re-use while hot. Air pollution control is facilitated and energy and capital costs are lowered by specialization of equipment, retention of sensible heat and shorter cycle times, allowing operation with less equipment and higher production rates.

Abstract: TiB.sub.2 -carbon composites are produced by mixing the raw materials comprised of carbon, TiB.sub.2, pitch, and other reactants, forming a shaped article, processing in a nitrogen atmosphere up to 2100.degree. C., and in a noble gas above 2100.degree. C.

Abstract: A cathode component for a Hall aluminum cell is economically produced from a mixture of a carbon source, preferably calcined petroleum coke, and optionally calcined acicular needle petroleum coke, calcined anthracite coal; a binder such as pitch including the various petroleum and coal tar pitches; titanium dioxide, TiO.sub.2 ; and boric acid, B.sub.2 O.sub.3 or boron carbide, B.sub.4 C; forming said mixture into shapes and heating to a TiB.sub.2 -forming temperature.

Abstract: Raw petroleum coke is treated with a solvent to extract the soluble matter. The extracted matter is useful as coker feedstock, fuel, pitch binder, pitch precursor, impregnant and carbon black feedstock. The coke residue may be used without further treatment as a fuel or may be calcined for use in Hall aluminum cell anodes.

Abstract: Very fine particle size iron oxide or calcium fluoride is dispersed in a high sulfur petroleum coker feedstock before delayed coking to produce a needle coke with low CTE and negligible puffing on heating to the temperature of graphitization.

Abstract: Very fine particle size chromic oxide is dispersed in a high sulfur petroleum coker feedstock before or during delayed coking to produce a needle coke with low CTE and negligible puffing on heating to the temperature of graphitization.

Abstract: Chloro-hydrocarbons are used as pitch binder modifiers to improve the strength, density and electrical properties of carbon and graphite articles produced from carbonaceous particles, binders, and additives, and are particularly useful in manufacture of electrodes used in ultra high powered electric arc steel furnaces.

Abstract: An effective amount of silicon carbide, preferably mixed with graphite, is added to the blend of coals used to make a foundry coke, the blend is thoroughly mixed, pulverized, and coked in a by-product coke oven. The resulting coke has improved physical and chemical properties allowing production of gray iron with less fuel. Gray iron castings with improved hardness control at lower cost are produced by the inoculating effect of the silicon from silicon carbide and graphite in the mixture.

Abstract: Organic fibers are oxidized, ground and blended with a source of silica. Heat treatment of the blend in the range of 1400.degree. to 1700.degree. C. results in the formation of SiC whiskers. Various fibers including PAN, pitch and rayon which can be processed to form carbon and/or graphite fibers can be used as the carbon source. Ashed rice hulls as the source of silica are blended with the chopped fiber to form the SiC whiskers.

Abstract: Silicon carbide whiskers useful for reinforcement of metals are manufactured from SiO.sub.2 and carbon. Rice hulls are ashed in air at approximately 620.degree. C. to obtain amorphous SiO.sub.2, which is then blended with fine particle size carbon. The mixture is rapidly heated under CO atmosphere to 1500.degree. C., and when the temperature reaches that point the CO atmosphere is flushed with argon, the SiC whiskers forming in the argon atmosphere. The product is purified by ashing in air to remove excess carbon and/or washed with HF to remove unreacted SiO.sub.2.

Abstract: SiC whiskers are made by separating a quantity of rice hulls into two portions, carbonizing one portion in a non-oxidizing atmosphere, ashing the other portion in air, combining the carbonized residue and amorphous SiO.sub.2 obtained, and heating in a noble gas atmosphere.

Abstract: A transistorized detector sensitive to the ripple component of the DC output of an alternator gives a visual or audible warning signal when the ripple component exceeds a predetermined level providing early indication of failure of either a winding or rectifier diode.

Abstract: Electrodes suitable for the electrolysis of solutions, in particular for the production of aluminum in Hall-Heroult reduction cells, are composed of SnO.sub.2 with various amounts of conductive agents and sintering promoters principally GeO.sub.2, Co.sub.3 O.sub.4, Bi.sub.2 O.sub.3, Sb.sub.2 O.sub.3, MnO.sub.2, CuO, Pr.sub.2 O.sub.3, In.sub.2 O.sub.3, MoO.sub.3.

Abstract: An electrode for a high temperature secondary electrical storage cell including an alkali metal negative electrode, a molten salt electrolyte, and a transition metal sulfide as the positive electrode, formed by mechanically loading a precut form or graphite felt or foam with FeS.sub.x powder, coating or impregnating the precut form with a high carbon yield resin, curing the resin at an intermediate temperature, and carbonizing the resin at a temperature below 1000.degree. C.

Abstract: A man-carrying vehicle modified with a device for alleviating accelerative forces particularly useful for space travel is provided with a personnel carrier which automatically orients its occupant, with an imaginary Z-axis parallel to the spinal column and through the centers of mass of cross sections of the body and of the head perpendicular to the Z-axis such that the Z-axis is in a position normal to the resultant of the forces of acceleration, and which rotates the occupant about the Z-axis to alleviate or counteract the effects of the forces of acceleration in the X and Y directions normal to the Z-axis.