Abstract: The invention relates to a surface treatment for stoichiometric silicon carbide. A carbon-rich silicon carbide layer is applied over the silicon carbide. In the case of the silicon carbide surface, the ratio of silicon to carbon in the carbon-rich layer varies from one at the silicon carbide interface to near zero in the interior of the carbon-rich layer to greater than zero and preferably 0.3 to 0.5 on the surface of the carbon-rich layer remote from the interface. A preferred method of making the silicon carbide layer is also presented.

Abstract: A coated article and method for producing the coated article are described. The article is coated with a system which provides protection against oxidation and corrosion and which significantly reduces the substrate temperature. An MCrAlY layer is applied to the article to be protected and a columnar grain ceramic is applied by vapor deposition to the MCrAlY coated article. An alumina layer which exists between the MCrAlY layer and the columnar ceramic layer provides for the adherence of the columnar layer to the MCrAlY layer. An important feature of the invention is that the interface between the MCrAlY layer and the alumina layer has a low surface roughness and this greatly improves the columnar ceramic layer adherence.

Abstract: A method of preparing a letterpress printing plate from a liquid photopolymer using an air knife to etch out the unpolymerized liquid to leave the relief image. A new printing plate substrate is used that has a laminae that is paper and a lamina that is a sealing coat on the paper. The paper is a special paper known as tag stock that is 5 to 20 mils thick, has tensile strengths of at least 30 pounds per inch in width in the press direction and at least 20 pounds per inch in width in the cross press direction, and fibers that are independently colored with a dark color having a good light absorption/reflectivity ratio.

Abstract: A process for preparing enamelware by preparing a slip containing inorganic fibers having a diameter of 5 to 30 microns and a length of 1 to 5 millimeters, enameling a ware with the slip, and drying and firing the enameled ware.

Abstract: A coated article and method for producing the coated article are described. The article is coated with a system which provides protection against oxidation and corrosion and which significantly reduces the substrate temperature. An MCrAlY layer is applied to the article to be protected and a columnar grain ceramic is applied by vapor deposition to the MCrAlY coated article. An alumina layer which exists between the MCrAlY layer and the columnar ceramic layer provides for the adherence of the columnar layer to the MCrAlY layer. An important feature of the invention is that the interface between the MCrAlY layer and the alumina layer has a low surface roughness and this greatly improves the columnar ceramic layer adherence.

Abstract: A coated article and method for producing the coated article are described. The article is coated with a system which provides protection against oxidation and corrosion and which significantly reduces the substrate temperature. An MCrAlY layer is applied to the article to be protected and a columnar grain ceramic is applied by vapor deposition to the MCrAlY coated article. An alumina layer which exists between the MCrAly layer and the columnar ceramic layer provides for the adherence of the columnar layer to the MCrAlY layer.

Abstract: The ion implantation is performed in a manner to vary the angle between an ion beam and an article to be implanted with ions, whereby it can be accomplished with remarkable ease while providing the impurity distribution which is flattened in the depthwise direction.

Abstract: A method of chemically vapor depositing a material on a plurality of stacked substrates comprising heating a tubular susceptor surrounding the stack to thereby heat the substrates by radiant heating.

Abstract: Sides rather than ends of miniature right-rectangular electronic parts are oriented for coating by disposing the ends of the parts in the resiliently coated passageways of a part handling plate and then raking parts to tip them into the passageways with their sides exposed. The parts are loaded into the part handling plate by first feeding them into a part loading plate subjected to vacuum and vibratory actions. The part loading plate has openings of generally circular upper cross-sections and downwardly tapering. The lower portions of the openings in the part loading plate are formed as ends of oblongs matching the sizes of part end surfaces.

Abstract: In vacuum sputter cleaning and plating operations forming a patterned metallic layer on a silicon semiconductor chip, alignment is maintained by anticipating the difference in thermal expansion between the molybdenum mask and the silicon chip and forming the apertures in the molybdenum mask in a radially offset position with respect to the intended cleaning and deposition locations on the semiconductor chip, when the mask and the chip are at room temperature. Then, when the mask and the silicon chip are maintained in a concentric position and are raised to the cleaning and deposition temperature, the differential expansion of the molybdenum mask will bring the apertures therein into perfect alignment with the intended deposition locations on the silicon wafer.

Abstract: A non-stinging composition for removing make-up from the area near the eye comprising cleanser, buffering agent, water, chlorhexidine digluconate, and phenethyl alcohol.

Abstract: A metallic or ceramic layer is deposited on a component by plasma spraying. This produces a rough, still porous, coating which is poorly bonded at the interface with the substrate. Aluminium or chromium is vapor deposited under pulsating pressure to react with the substrate to form an oxidation resistant coating of Ni Al (intermetallic) or Ni Cr (solid solution) which may include ceramic particles and is aerodynamically smooth.

Abstract: In a process for producing vacuum deposition films which comprises providing a vacuum deposition film composed of an alloy or an intermetallic compound of two or more components having different vapor pressures at a specified temperature on a base, the improvement which comprises charging the component having the lower vapor pressure at said temperature to an evaporation source in a vacuum evaporation chamber in such an amount that the evaporation amount thereof per unit time does not substantially vary, and carrying out vacuum evaporation while continuously feeding a component having a higher vapor pressure at said temperature into said evaporation source in an amount corresponding to the evaporation amount thereof per unit time.

Abstract: In a method for prime coating fiberboard products the improvement wherein a foaming agent is added to a conventional aqueous latex based prime coating and the coating aerated to give a frothed prime coating having a consistency of 500 to 750 grams per liter, the frothed coating applied to the board product at a rate of 220 to 320 grams per square meter, and heated to collapse the froth and dry the coating.

Abstract: Synergistic fire retardants for wood and other cellulosic materials which are substantially non-hygroscopic and which do not require high curing temperatures in the material treated are formed of the partial reaction product of dicyandiamide, phosphoric acid, boric acid and water wherein the combined weight ratio of dicyandiamide and phosphoric acid to boric acid is from about 60 to about 40 to from about 90 to about 10.

Abstract: The specification discloses a low temperature process for depositing oxide layers on a substrate by photochemical vapor deposition, by exposing the substrate to a selected vapor phase reactant in the presence of photochemically generated neutral (un-ionized) oxygen atoms. The oxygen atoms react with the vapor phase reactant to form the desired oxide, which deposits as a layer on the substrate. The use of photochemically generated neutral oxygen atoms avoids damage to the substrate due to charge bombardment or radiation bombardment of the substrate. The deposited oxide layer may optionally incorporate a selected dopant material in order to modify the physical, electrical, or optical characteristics of the oxide layer.

Abstract: This invention is concerned with a process for applying a protecting silicon-containing coating on a superalloy. The invention further concerns the thus obtained specimens having a protective coating.

Abstract: In the method of forming diffusion coatings for improved corrosion, erosion or wear properties in high performance alloy structures, the coatings being characterized by the intimate presence of an interdispersed phase material in desired amount to enhance one or more of these properties, which includes interdiffusing under non-oxidizing conditions a portion of the structure surface and an alloying element disposed therewith, such as aluminum, in a diffusion pack of predetermined composition desirable for the interdiffusion, the improvement comprising maintaining the desired amount of interdispersed phase material relatively richly concentrated within a selected pack zone corresponding to the locus of interdiffusion for intimate diffusion coating interdispersal from the pack zone in interdiffusion responsive relation and freely of varying the predetermined composition of the pack.

Abstract: Radially-propagating, free, liquid sheets comprising single or multiple discrete layers are used to coat moving substrates. The use of these free liquid sheets allows the high speed application of single or multicomponent coatings to substrates. Apparatus for forming radially-propagating, free, liquid sheets and applying the sheets to substrates in the form of coatings is also disclosed.

Abstract: An improved process for providing corrosion protection to ferrous metal substrates is disclosed. The improved process involves a first treating of the surface of the ferrous metal substrate with nitric acid followed by directly applying to the previously treated surface a zinc-rich coating composition. Upon curing the zinc-rich coating composition, an adherent electroconductive coating is formed. The coating provides excellent corrosion protection and since it is electroconductive, the coating is weldable and can accept a subsequent electrocoat.