A system for distributing silicon dioxide particles produced by a hydrolysis torch over the surface of a deposition mandrel. The system includes a drive mechanism for rotating and translating the mandrel past the torch, a bell crank for pivotally supporting the torch and a lost motion drive link for interconnecting the drive mechanism and the bell crank. As the drive mechanism rotates and translates the mandrel, the drive link and the bell crank move the torch along a line extending parallel to ...

A process for increasing the particle size of rare earth oxides is disclosed comprising: forming an aqueous mineral acid solution containing a rare earth source dissolved therein, reacting the rare earths in said solution with oxalic acid to form an insoluble rare earth oxalate, separating the rare earth oxalate from the reaction medium, contacting the rare earth oxalate with an aqueous oxalic acid solution having a concentration of oxalic acid of from about 1 to about 40 percent by weight and h...

A method is disclosed of preparing spherical particles of metal oxide hydrate and metal oxide hydrate with carbon, which particles can be converted into spherical oxide, and if carbon has been incorporated, into carbide particles. Spherical oxides and carbides of actinide metals are used as fissile material in nuclear technics. An aqueous solution of a metal salt is mixed at a low temperature with one or more ammonia liberating agents and subsequently solidified by dispersion in a phase of high ...

While being nonrotatably transported along a flight conveyor, glass containers are electrostatically treated with colored metal oxide film-forming organometallic compounds. The organometallic compounds are electrostatically sprayed in a nonflammable solvent system containing a halogenated solvent while a horizontal flow of air is provided across the flight conveyor in impinging relation with respect to the container being treated.

A novel construction for a nickel oxide capacitor including the use of a novel alloy and a novel method of manufacturing a nickel oxide capacitor.

A directly heated cathode assembly comprising a tape-shaped member having a perforated central plane portion and end portions longitudinally extending from two sides of the central portion, a cathode plate member in spaced confronting relationship with one surface of the central portion, and electron emissive material embedded within the perforations of the central portion and interposed between the cathode plate member and the central portion. The width of the central portion of the tape-shaped...

Organic metal compounds containing a high percentage of metal and having a central molecular structure comprising two or three metal atoms connected by oxygen bonds to each other, at least one of the metals being trivalent, and, in turn, connected to two or three acyloxy groups or to three divalent-metal acyloxy groups are prepared by reacting metal acetates or formates with metal oxides or hydroxides and with an aliphatic acid having from 7-22 carbon atoms or with a divalent metal acyl oxide of...

Tin oxide (SnO.sub.2) is etched by forming a layer of a metal such as aluminum on the portions of the SnO.sub.2 surface to be etched, and then contacting the metal with an aqueous solution of hydrochloric acid. Passage of a current through the tin oxide-metal composite as cathode while in contact with the solution as electrolyte may be employed to speed up removal of SnO.sub.2.

The invention provides metal oxide film structures for use as radioactive radiation windows, membranes of electrolytic cells and other purposes. The structures consist of an annular, or other closed frame of tantalum, niobium, tungsten or zirconium integral with a thin film of an oxide of the same metal, which spans the area enclosed by the frame. The structure is manufactured by subjecting a blank of the metal concerned, centrally masked on the larger part of the surface, to an anodizing treatm...

The specification discloses fabrics that are composed of metal oxides such as zirconia, tantala, and other metal oxides which have not heretofore been available in the form of fabrics. The metal oxide fabrics of this invention are characterized by being relatively flexible and strong, as well as exhibiting the desirable high temperature and chemical resistance properties that are typical of materials such as zirconia and tantala. The metal oxide fabrics of the invention are useful as battery sep...