Thin films of metal, metallic compounds or other materials are prepared by ultrasonic atomization of a solution which is intended to form the material to be deposited, the aerosol which is thus produced being transported by a carrier gas and deposited on a heated substrate.

A thin electroconductive glaze film comprising an amphorous uniform interdispersion of a glass phase and a conductive phase, said phases having been co-deposited as said film by sputtering thereof from a solidified slurry of a frit of said glass and a particulate dispersion of said conductor.

A process is disclosed which is useful for sealing a thin walled, flexible, plastic tube such as dialysis membrane tubing. The process utilizes a clamp which has an elongated base member having at least two spaced longitudinal ridges positioned thereon. A second mating member is hinged to the base member and has at least two grooves which are positioned to mate with the ridges of the base member when the clamp is closed. The clamp is held in a closed position by the longitudinal movement of the ...

Thin, absorbent pads with soft, flexible edges. The pad structure comprises a fluid pervious non-woven cover sheet, a central absorbent batt of comminuted wood pulp fibers, and a fluid-impervious backing element. Each element is coextensive with the others. The integrity of the central absorbent batt is maintained in the x and y directions by adhering the cover sheet and fluid impervious backing element to the respective top and bottom surfaces of the central batt by light applications of flexib...

The magnetic properties of a cobalt-nickel alloy type ferromagnetic thin layer for magnetic recording produced by electroplating are improved by adding copper and zinc together to the thin layer.

Here new periodic structures are proposed for making thin film optical devices such as lasers and passive devices such as filters and modulators utilizing the thickness variation introduced in a multi-layer thin film optical waveguide. Wave propagation in such structures is analyzed. Expressions are derived for the amount of distributed feedback and possible scattering loses. From the coupled-wave equations, the laser-oscillation conditions are developed. Examples of the invention are given for ...

The present invention provides a method for tritium dosimetry. A dosimeter comprising a thin film of a material having relatively sensitive RITAC-RITAP dosimetry properties is exposed to radiation from tritium, and after the dosimeter has been removed from the source of the radiation, the low energy electron dose deposited in the thin film is determined by radiation-induced, thermally-activated polarization dosimetry techniques.

Disclosed is an improved optical thin film coating system comprising all essential elements of resistive and electron beam evaporation systems, chemical vapor deposition systems and reactive plasma deposition systems. Sequences of cleaning and deposition processes which previously required moving substrates through several chambers are performed in a single vacuum chamber. The evaporative sources also efficiently vaporize solid materials to provide reactive gases for reactive plasma and chemical...

A device for spotting samples at spaced locations on the adsorbent surface of a TLC (thin-layer chromatography) plate has a base with an elevated, flat TLC plate supporting area and an adjacent stepped down solvent trough containing area separated by a step. A wicking plate, having a number of wick-holding wells, is adapted to be positioned over the trough with the wicks dipping in the trough and the upper ends of the wicks adapted to engage the adsorbent surface of a TLC plate lowered against t...

In an apparatus for drying solutions, dispersions or suspensions, distributor elements are moved by a central rotable installation between parallel planes. As the planes are not perpendicular to the axial shaft, the edges of the distributor elements touch and stroke over the whole surface of the heat exchanger. A self-cleaning effect of the inner surface of the drying apparatus is guaranteed. In a preferred embodiment the distributor elements are cylindrical.