A magnetoresistive memory element includes a stacked structure with a ferromagnetic reference region including a fixed magnetization; a ferromagnetic free region including a free magnetization that is free to be switched between oppositely aligned directions with respect to an easy axis thereof; and a tunneling barrier made of a non-magnetic material. The ferromagnetic reference and free regions and the tunneling barrier together form a magnetoresistive tunneling junction. The ferromagnetic free...

A resinoid dicing blade having approximately a 20% by volume porosity structure is coated and impregnated with Teflon.RTM. by a process which impregnates the resinoid blade with Teflon.RTM. to about 0.3 to 0.5% by weight. The Teflon.RTM. impregnated dicing blades not only reduces nozzle chipping when bonded silicon wafers are separated into a plurality of individual printhead die, but blade life is significantly increased.

A method of making a coated abrasive article having an electrically conductive backing is taught, wherein electrically conductive material is incorporated into a coated abrasive backing. The coated abrasive article made by this method has a reduced tendency to accumulate static electric charge in the abrasive article during abrading of a workpiece.

A process for preparing water-based pyrotechnic active compositions containing metal powder is described, which comprises coating the metal powder with a plastic which is insoluble in dilute acids and water and is substantially impermeable to water and oxygen, the coating being present in a quantity of not more than 5 per cent by weight, relative to the total mass of the metal powder, and suspending the powder obtained in water, mixing it with the other constituents of the active composition and...

An apparatus (2) for the impregnation of metal castings including an impregnation chamber (11) having an open end; a movable assembly (2) comprising a cover (20) for closing the open end of the impregnation chamber, a casting carrier (21), carrier transport means (22) for raising and lowering the casting carrier relative to the cover, and carrier rotating means (23); and transport means (24) for raising and lowering the movable assembly relative to the open end of the impregnation chamber. The i...

This invention relates to the use of plasma technology for coating thin polymer films on steel. The process utilizes DC power, system pressures of 0.01-1.0 torr, the steel substrate is made the cathode, and the anodes are equipped with magnetic enhancement. The result is a uniform, pin-hole free, dense organic coating. Furthermore, there is minimal deposition of the organic film on the anodes or interior of the chamber.

An apparatus for simultaneously delivering more than one kind of medicament to an eye, without premixing of the medicaments within the apparatus. The apparatus includes a special nozzle assembly which precludes reentry of medicament expelled from the nozzle to prevent commingling of the medicaments. In this way, dosages of two or more medicaments may be simultaneously delivered to an eye without the need for creating a stable premixture of the medicaments.

An economical process for applying nitride layers to titanium and titanium alloys. Within a short time, layer thicknesses of 20 .mu.m are obtained by pressure-nitriding in an ammonia atmosphere. To this end, temperatures of 500.degree. to 1000.degree. C. and pressures of 0.2 to 9 MPa are used.

The method of making a composite article of different metal portions by spraying molten metal on the surface of a solid metal member that has been cleaned and preheated in a controlled atmosphere at low pressure. The molten metal is sprayed on the surface of the solid metal member, preferably by plasma jet spraying. It is rapidly solidified to be adherent to the surface of the solid metal member to form a composite preform. The composite preform is cooled at a rate sufficiently low to reduce res...

Using a treating solution which is easy to dispose after use, the surface of a plastic material is treated so that the treated surface has good adhesion to a coating film to be formed thereon. An aqueous dispersion containing an abrasive which is harder than a plastic material to be surface-treated, is pressurized to about 1.0-200 kg/cm.sup.2 and then is injected onto the surface of said plastic material through an injection nozzle. An airless spray gun having said injection nozzle is supported ...