Abstract: A method of making high purity crystalline AlON bodies by synthesizing and calcining AlON powders having less than 80 ppm Si, Mg, Ca, Na, and K impurities. The AlON powders are milled to reduce the particle size of the AlON powders using a high purity milling media. An AlON body is formed from the milled AlON powders. Such AlON bodies are particularly suitable for semiconductor process chamber components.

Abstract: An aluminum oxynitride-based plasma reactor for processing of semiconductor substrates is provided. A method for making an aluminum oxynitride reactor components is also provided. A method for processing a semiconductor substrate in an aluminum oxynitride based plasma reactor is also provided.

Abstract: A high performance transparent polycrystalline ceramic material is provided. The transparent polycrystalline ceramic material has a nitrogen-containing isotropic lattice structure and having 80% optical transmission at a wavelength between 3.86 and 4.30 microns through said material at 11 mm of thickness.

Abstract: A method of making high purity crystalline AlON bodies by synthesizing and calcining AlON powders having less than 80 ppm Si, Mg, Ca, Na, and K impurities. The AION powders are milled to reduce the particle size of the AlON powders using a high purity milling media. An AlON body is formed from the milled AlON powders. Such AlON bodies are particularly suitable for semiconductor process chamber components.

Abstract: A high performance transparent polycrystalline ceramic material is provided. The transparent polycrystalline ceramic material has a nitrogen-containing isotropic lattice structure and having 80% optical transmission at a wavelength between 3.86 and 4.30 microns through said material at 11 mm of thickness.

Abstract: The invention pertains to hardware such as cutting tools with improved performance, wear-resistance and durability made from sintered polycrystalline aluminum nitride based ceramic composites containing secondary or dispersed phases for enhanced toughness. The articles of this invention provide good hardness, toughness, chemical inertness, thermal stability, lubricity, wear-resistance, and the ability to operate in the presence of liquid coolants, yielding good surface finish and long lifetime. The cutting tools of this invention are applicable to a wide range of industrial, biomedical, commercial and other applications.

Abstract: A method of braze joining a copper member to a substrate of metal or ceramic material is disclosed according to which a diffusion barrier coating as defined is applied to the substrate alone, and a selected brazing alloy is interposed between copper member and substrate, followed by a two-step heating treatment. In the first step the assembly is heated at a temperature and for a time sufficient to melt the brazing alloy and cause a bond to form between the brazing alloy and the copper member and between the brazing alloy and the substrate. In the second step the temperature is raised and maintained in the range from about 600.degree. C. to about 950.degree. C. in a "solutionizing heat treatment" (as defined) for a time sufficient to allow the brazing alloy to form an "extended solid solution" (as defined) with copper in a controlled fashion to convert the bond to a strong joint which is resistant to thermal stress.

Abstract: A surgical instrument for use in endoscopic surgical procedures and especially arthroscopic surgery having an outer elongated tubular member and a concentric inner elongated tubular member positioned in and rotatable within the outer tubular member having an opening in its distal end and the inner tubular member having a cutting edge positioned at its distal end so as to coincide with and be exposable through the opening in the outer tubular member to effect the cutting of tissue and the removal of the cut tissue by aspiration through the inner tubular member, a coating of a metal from the group consisting of silver and gold extending substantially around the circumferential surface of at least one of the outer surface of the inner tubular member or the inner surface of the outer tubular member, the metallic coating from the group consisting of silver and gold being of such thickness and extending a sufficient distance along the axial length of the member to which it is applied to provide a malleable surface

Abstract: Metal bonded carbon fiber-reinforced composites are disclosed in which the metal and the composite are strongly bound by (1) providing a matrix-depleted zone in the composite of sufficient depth to provide a binding site for the metal to be bonded and then (2) infiltrating the metal into the matrix-free zone to fill a substantial portion of the zone and also provide a surface layer of metal, thereby forming a strong bond between the composite and the metal. The invention also includes the metal-bound composite itself, as well as the provision of a coating over the metal for high-temperature performance or for joining to other such composites or to other substrates.

Abstract: Coatings are disclosed (a) which are useful by themselves to substantially improve the surface properties of substrates to which they are applied and (b) which are useful as subcoats to substantially improve the bonding of coatings of nitrides, carbides and borides of titanium, hafnium and zirconium to such substrates. The coatings which are disclosed are novel materials characterized by a microcrystalline, single-phase, solid solution structure comprising:(a) about 20 to 70% by weight of at least one element from the group consisting of cobalt and nickel;(b) about 8 to 35% by weight of chromium;(c) about 3 to 20% by weight of at least one element from the group consisting of molybdenum and tungsten; and(d) about 0.5 to 10% by weight of at least one element from the group consisting of carbon, nitrogen and boron.

Abstract: The instant disclosure is concerned with martensitic stainless steel cutting edges such as razor blades which have superior corrosion resistance and which, although containing only between 0.30% to 0.45% carbon have hardnesses which are equal or better than cutting edges made from martensitic stainless steels containing 0.6% or more carbon which are widely sold commercially. Generally the blades are produced by treating them prior to hardening so that they will have a fine carbide microstructure comprising about 200 to about 500 carbides per 100 square microns, hardening them under conditions in which the fine microstructure will be substantially retained, i.e. subsequent to hardening they will still have about 200 to 500 carbides per 100 square microns, and forming the cutting edge.

Abstract: A process for producing long-lasting corrosion resistant carbon steel razor blades and the products made thereby. The process comprises first coating the cutting edges of the blades with chromium; and then immersing the blades in an electroless coating bath to provide a coating of a nickel-phosphorous, nickel- copper- phosphorous, cobalt-phosphorous or cobalt-nickel-phosphorous coating material on at least the bodies of the blades, the chromium coating preventing beading up of the coating material on the cutting edges of the blades to an extent that would require resharpening of the cutting edges. The blades may thereafter be overcoated with a carboxy-substituted silicone oil composition preferably comprising therein a long chain aliphatic acid, alcohol, amide and mixtures thereof.

Abstract: The present invention is concerned with processes for microhoning cutting edges and especially those of razor blades, wherein the edges are subjected to sonic energy and especially ultrasonic energy while said edges are in contact with a slurry or dispersion of abrasive particles which have diameters of less than 3 microns.

Abstract: The present invention is concerned with processes for michrohoning cutting edges and especially those of razor blades, wherein the edges are subjected to sonic energy and especially ultrasonic energy while said edges are in contact with a slurry or dispersion of abrasive particles which have diameters of less than 3 microns. The sonic or ultrasonic energy is emitted from a horn having a corrugated end and the ridges of said corrugated end are oriented so as to be perpendicular to the edges of the razor blades as they pass the horn, said blades being stacked in a magazine in which their edges are substantially parallel to one another and their flat surfaces in face-to-face relationship.