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Superlative parts crowned at powder-metal competition
of only 60%. A kinematic optical mount used in laboratory equipment won an Innovative Functional Assembly award of distinction. Precision Powdered Metal Parts Inc., Pomona, Calif., forms the 316L stainless-steel part that is fabricated to a density of 6.4 gm/cm 3 with a yield strength of 25 kpsi
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Powder-Forged Connecting Rod Evaluation
the. rod cap end, and then machining portions of. the product to realize the final dimensional. characteristics of the component. The powder forged (PF) rod is: fabricated by consolidating metal powders into a preform that. is sintered, reheated to forging temperature (or in some cases forged
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Magnesium
As the lightest structural metal available, magnesium's combination of low density and good mechanical strength results in a high strength-to-weight ratio. Because of their low modulus of elasticity, magnesium alloys can absorb energy elastically. Combined with moderate strength, this provides
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Fabrication of Nano-Structures using EB-Lithography and its Application to Long-Wavelength Quantum-Wire Lasers
It is important to fabricate high density and high uniformity nano-structures for the realization of quantum wire lasers. In this work, 1.5um-wavelength GalnAsP/InP quantum wire lasers were fabricated by electron beam (EB) lithography, and wet chemical etching followed by embedding organic metal
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Refractory Metals
inert atmospheres; and by electron-beam welding in vacuum. The best welds are produced by inertia (friction) welding and electron-beam welding; welds produced by the other techniques are less ductile. Generally, arc-cast metal develops better welds than do powder-metallurgy products. Heavy sections
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MICRO: Techemergent
of the latest roadmap. Recently, the technology's viability as a manufacturing tool for 90-nm devices as well was demonstrated by two firms. IBM built a critical level of a 64-bit power processor, while TSMC fabricated electrically functioning SRAM chips. Both companies maintain that the process yield
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MICRO: Behind the Mask - Walker (February 2001)
challenges for NGL, the MCoC has fabricated a range of masks for a variety of applications, including proximity x-ray lithography (PXL), electron projection lithography (EPL), scattering membrane and scattering stencil lithography, and extreme ultraviolet lithography (EUVL). The MCoC's strategy is to apply
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Medical Device Link . The Future of Medical Microelectromechanical Systems
Will microelectromechanical systems (MEMS) for the medical industry reach the potential envisioned for them? MEMS are micron-sized structures such as beams, cantilevers, diaphragms, valves, plates, and switches that can function as tiny sensors and actuators. They are fabricated by integrated