Abstract: Disclosed is a practical aluminum based alloy containing 1 to 99 weight percent beryllium, and improved methods of semi-solid processing of aluminum alloys containing beryllium. The present methods avoid molten beryllium, agitation of molten aluminum-beryllium alloys and the need for introducing shear forces by utilizing atomized or ground particles of beryllium mixed with solid, particulate or liquidus aluminum.

Abstract: A controlled oxygen content copper clad laminate product and process. In accordance with one aspect of the present invention, there is provided a laminate having a first layer of oxygen-free copper joined to a second layer of oxygen-rich copper by the steps of (i) cladding the first layer to the second layer at a relatively low speed to minimize rolling friction, (ii) finish rolling the laminate to substantially increase its thickness tolerance, (iii) slitting the laminate to increase its width tolerance, (iv) profiling a groove at a selected location in the laminate, (v) finish slitting a plurality of ribbons from the laminate, (vi) tension leveling the laminate to straighten and flatten its shape, (vii) stamping the laminate into sections each of a selected configuration, (viii) cleaning laminate surfaces, and (ix) direct bonding the laminate to a substrate material such that the first layer is annealed to the second.

Abstract: An actuator armset for a computer disk drive, in accordance with one aspect of the present invention, is comprised of a magnesium alloy containing beryllium. The armset has a bore for rotating about a spindle of the disk drive to position a transducer radially across a disk of the disk drive. In accordance with another aspect of the invention is an actuator armset of a disk drive system for movably positioning and supporting a transducer over a disk of the disk drive. The armset has a bore for pivoting about a spindle and comprises a magnesium alloy containing beryllium. A bearing assembly is interposed between the armset and the spindle, a flexible suspension being mounted at one end of the armset. Mounted to an opposing end of the suspension is a transducer. A voice coil is, in turn, mounted to a set of armset brackets such that the voice coil and the brackets are opposite the suspension and transducer.

Abstract: Disclosed is a practical magnesium based alloy containing 1 to 99 weight % beryllium and an improved method of semi-solid processing of magnesium alloys containing beryllium. The present method avoids agitation of molten alloys and the need for introducing shear forces by utilizing atomized or ground particles of beryllium mixed with solid, particulate or liquidus magnesium.

Abstract: A process for cladding precious metals to precipitation hardenable materials. In accordance with one aspect of the present invention, are the steps of (i) placing a precious metal layer of a first selected thickness atop a selected beryllium-copper alloy base metal strip of a second selected thickness to approximate a desired final product thickness, (ii) cold rolling the layer and strip to reduce their respective thicknesses by generally more than 50%, (iii) heating the layer and strip to a first selected temperature generally within a range of 1000.degree.-1300.degree. F., (iv) maintaining the first temperature for a first selected time to promote metallic bonding of the layer to the strip while softening the base metal, (v) pickling the layer and strip to remove surface oxides, (vi) cold rolling the layer and strip to a thickness generally 11% greater than that of the desired final product thickness, (vii) heating the layer and strip to a second selected temperature generally within a range of 1250.degree.

Abstract: A beryllium metal matrix phase includes up to 70% by volume of beryllium oxide single crystals dispersed therein. The composites are useful for electronics applications because of their light weight, high strength and effective thermal properties.

Abstract: A process for producing beryllium oxide (BeO) from beryllium hydroxide (Be(OH).sub.2) in a single reactive step. Beryllium hydroxide powder is mixed with a calcination additive containing Mg and/or Ca and calcined at 1000.degree.-1300.degree. C. The resultant oxide pow-der is characterized by low fluorine content (<100 ppm), low surface area (<1.5 m.sup.2 /g) and a controlled particle size of 2 .mu.m to 25 .mu.m.

Abstract: This invention relates to a composition of a region joining two members treated thermodynamically by a process set forth by the present invention. In accordance with one aspect of the present invention, there is provided a region comprising a solidified bead containing generally between 1.6 and 2.0% beryllium, a melt and mix zone containing generally between 0.6 and 1.8% beryllium, a recrystallized zone containing generally between 0.6 and 1.0% beryllium, and an overaged zone containing generally between 0.3 and 0.8% beryllium.

Abstract: This invention relates to a process for thermodynamically treating a region joining two members. In accordance with one aspect of the present invention, are the steps of heating the region to a first temperature generally within a range of 750.degree. F. and 850.degree. F. so as to diffuse a strengthening material in the region into a heat affected zone between the members; maintaining the first temperature for a first selected time within a range of 3 to 20 hours so as to raise the percentage of strengthening material diffusing into the heat affected zone; heating the region to a second temperature generally within a range of 900.degree. F. to 1000.degree. F. so as to initiate hardening of the heat affected zone; maintaining the second temperature for a second selected time generally within a range of 0.5 to 5 hours so as to harden the heat affected zone with minimal decrease in hardening of regions outside the heat affected zone; and cooling the region to room temperature.

Abstract: A beryllium metal matrix phase includes up to 70% by volume of beryllium oxide single crystals dispersed therein. The composites are useful for electronics applications because of their light weight, high strength and effective thermal properties.

Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and cobalt, e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 1% or about 1.5% or about 2% cobalt, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.

Abstract: The invention contemplates a thermomechanical process applicable to beryllium copper alloys consisting essentially of about 0.2 wt % to about 0.7 wt % beryllium; from about 1.0 wt % to about 3.5 wt % nickel and cobalt in the aggregate, where nickel comprises at least about 1.0 wt %; up to about 1.0 wt % zirconium; up to about 0.005 wt % lead; up to about 0.1 wt % magnesium; up to about 1.5 wt % silver; up to about 0.5 wt % incidental impurities including lead; and the balance essentially copper; which process comprises solution annealing said alloy at a temperature of at least about 90% of the incipient melting point of the alloy expressed in degrees Fahrenheit, cold working the solution treated alloy to reduce the section thickness thereof at least about 60% or much more, and then aging the alloy to produce therein an improved combination of properties including strength, ductility, formability and conductivity.

Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and nickel, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 1% nickel where cobalt may be substituted for up to about one-half of said nickel content at a substitution ratio of about 1 part by weight cobalt for about 2 parts by weight nickel, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.

Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and cobalt, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 2% cobalt, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.

Abstract: This invention is directed to age hardenable copper beryllium alloys, and to articles and parts made therefrom, which contain special small amounts of beryllium and cobalt; e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 0.4% cobalt, which, when finished by solution treating, cold working at least about 50% or at least about 70% and age hardening have a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength.

Abstract: Copper-base alloys are disclosed which are characterized by unusually low melting points combined with good tensile strength and ductility in the as-cast condition, excellent founding characteristics, high hardness and strength in the as-cast plus heat treated condition, ability to be used as brazing alloys, and excellent wrought characteristics. These alloys can possess an attractive pale gold or silvery appearance as cast in sand, permanent mold and investment mold, and comprise the following constituents in the ranges and ratios specified:Percent by Weight Manganese 12 to 36 Zinc 4 to 28 Beryllium 0.10 to 1.00 Copper 50.0 + (10 .times. Be content) to 58.0 + (14 .times. Be content).Up to 2% lead may be usefully incorporated in these alloys to improve machinability.