Abstract: A method for the manufacture of articles such as heat exchangers, heat absorbers, thermal skins, rocket engine components and the like which method comprises providing a substrate or mold, etching or cutting cooling channels therein, filling said channels and processing to form a part which is then fabricated into the final article. In the production method a unique filler or core material comprising a strontium composition is utilized thus rendering a product of high quality and net-shape finish.

Abstract: This invention relates to superconducting magnetic storage (SMES) apparatus made of repetitious modular units or modules which support a superconducting electrical magnet and a fluid and which are capable of efficient load transfer and are mass producible. The invention also relates to a method for making a modular SMES apparatus.

Abstract: The process for fabricating ceramic bodies which comprises providing a particulate ceramic powder such as Si.sub.3 N.sub.4, and adding a sintering aid such as SiO.sub.2 and/or Y.sub.2 O.sub.3, and providing an aqueous solution of a water soluble plastic binder, particularly poly(2-ethyl-2-oxazoline), and which can include auxiliary components, e.g. a surfactant. The ceramic powder including sintering aids is dispersed in the aqueous solution containing binder, and stirring is continued until the dispersion becomes viscous. The resulting viscous dispersion is then dried to form a mixture of the particulate ceramic material and the binder, and the dried mixture is injection molded, e.g. at temperature of about 400.degree. to 500.degree. F. in an argon atmosphere. The injection molded product is then stripped of the binder by heating at temperature ranging from about 700.degree. to about 850.degree. F., without causing any stripping defects.

Abstract: A superconducting magnetic energy storage apparatus comprising a cylindrical superconducting coil; a cylindrical coil containment vessel enclosing the coil and adapted to hold a liquid, such as liquefied helium; and a cylindrical vacuum vessel enclosing the coil containment vessel and located in a restraining structure having inner and outer circumferential walls and a floor; the apparatus being provided with horizontal compression members between (1) the coil and the coil containment vessel and (2) between the coil containment vessel and the vacuum vessel, compression bearing members between the vacuum vessel and the restraining structure inner and outer walls, vertical support members (1) between the coil bottom and the coil containment vessel bottom and (2) between the coil containment vessel bottom and the vacuum vessel bottom, and external supports between the vacuum vessel bottom and the restraining structure floor, whereby the loads developed by thermal and magnetic energy changes in the apparatus can

Abstract: There are provided superplastic alloys formed by electrodeposition of the alloy onto a cathode from an electrolyte containing a first metal ion, which is iron, nickel or cobalt, and a second constituent different from the first, which is iron, nickel, cobalt, tungsten or molybdenum, or a colloidal dispersoid. The products formed are fine-grain deposits free of intergranular embrittling films, and exhibit grain boundary flow at a superplastic temperature below a recrystallization temperature of the deposit. Nickel-cobalt alloys are preferred, and are deposited from halide-free sulfamate baths, with care being taken to eliminate all anode oxides from the system. In a complex structure, the approximate initial hardware contour is formed by electrodeposition, and the final structure formed by superplastic forming.

Abstract: A process of preparing ceramic powders for sintering comprises the steps of dispersing ceramic powders and sintering aids in a low-boiling dispersing liquid to form a suspension, ultrasonically vibrating the suspension to defloculate agglomerates which may have formed, and continuing the ultrasonic vibration until the dispersing liquid is evaporated.

Abstract: Metal matrix composite materials are formed from a reinforcing, submicron-particle material, such as SiC, which is not easily wettable by a matrix metal, such as Al, and therefore cannot be uniformly dispersed in the matrix because the particles agglomerate. A coating 12 of material, such as Si, easily wettable by the matrix metal, is placed on the surface of the particles 10 before mixing the reinforcing particles in the matrix metal.

Abstract: A method for healing surface cracks 10, especially in metals, by scanning a high-energy, diffused, pulsed electron-beam past a crack 10 in a slowly moving specimen object 12. The crack 10 moves laterally with respect to the beam so that the beam pattern 14 is a sawtooth pattern comprising a series of overlapping circles 22, each comprising one pulse of diffused energy.

Abstract: A salt system having a reduced rate of corrosion comprises a salt selected from the group consisting of KNO.sub.3,NaNO.sub.3 and mixtures thereof, and a minor amount of a corrosion inhibitor selected from the group consisting of Li.sub.2 O, Na.sub.2 O, CuO, Mgo, NiO, CaO, Al.sub.2 O.sub.3, Cr.sub.2 O.sub.3, SiO.sub.2, Mn.sub.3 O.sub.4, Ti.sub.2 O.sub.3, Y.sub.2 O.sub.3, Na.sub.2 CrO.sub.4, Na.sub.2 Cr.sub.2 O.sub.7, K.sub.2 CrO.sub.4, K.sub.2 Cr.sub.2 O.sub.7, and mixtures thereof.

Abstract: A process for the preparation of electrodeposited nickel-cobalt comprises immersing an anode and a cathode into an electrolyte solution comprising a predetermined Ni.sup.++ /Co.sup.++ ratio, passing a current from the anode to the cathode, and agitating the electrolytic solution in the area of the cathodic surface so as to prevent cathodic starvation and thereby eliminate the independent variables of current density and agitation.

Abstract: There are provided fiber reinforced structures formed of one or more layers of reinforcing fibers contained in an electroformed, superplastic, nickel-cobalt matrix.

Abstract: A process for fabricating character bands 22 for computer printers and the product generated thereby. The process comprises the steps of electrodepositing a binary or ternary nickel alloy onto a cylindrical cathodic mandrel 20, preferably machining away excess backing material 36 so as to leave a smooth surface 38, and separating character band 22 from mandrel 20.