description of a unique machine tool permitting achievement of 15-a rms diamond-turned surfaces

a new machine tool now in the final stages of development at the pacific northwest laboratory uses a unique tool motion to produce diamond-turned surfaces of exceptionally high quality. the cutting tool is programmed to move in 4-nm increments along two axes: an x axis and an omega axis. exceptionally stiff and accurate control of the too..

manufacturing methods and technology program for ruggedized tactical fiber optic cable

the scope of this quarter's effort, as reported herein, includes the following tasks and achievements: (1) cable process optimization; (a) complete polyurethane jacket evaluation samples (four types, four manufacturers), (b) complete fungus testing, (c) select optimized polyurethane type, (d) begin optimized cable fabrication for third en..

manufacturing methods and technology program for ruggedized tactical fiber optic cable

the scope of this quarter's effort, as reported herein, includes the following tasks and achievements: (1) cable process optimization--(a) complete first engineering samples; test, select optimized fiber buffering, (b) complete lay length evaluation samples; test, select optimized lay length, (c) receive polyurethane materials (four types..

effect of degree of abrasion of carbon fiber composite surfaces on strengths of adhesive bonded joints

strengths of double lap joints between carbon fiber composite and aluminum alloy varied over a three fold range, and low strengths were correlated with a high proportion of failure in adhesion to the composite. low strengths were traced to incomplete abrasion by grit blasting of the composite surface before bonding, although the effect ap..

semiautomated inspection of superfinished spherical surfaces

lapping and polishing techniques are used at bendix kansas city to fabricate superfinished spherical metal surfaces. a laser-light reflection method has been developed for semiautomated inspection of the surfaces. the reflected and diffracted light intensity distributions from the spherical surface are measured with an array of photodetec..

metal matrix composite bonding characteristics and impact properties

this research program objective is to develop an understanding of the surface characteristics and bond behavior in metal matrix composites as related to the impact properties. the initial part of this program addresses itself to bonding of aluminum foils with different surface treatments. scanning electron micrographs revealed the presenc..

the surface composition and energetics of type hm graphite fibers. / reprint: the surface composition and energetics of type hm graphite fibers

no abstract available

immobilized enzymes. 1973-june, 1980 (citations from the ntis data base)

the bibliography covers the industrial as well as the biochemical use of immobilized enzymes. enzyme technology, activity, stability, supports, fabrication, deactivation, and chemical reactions are cited. some of the applications for these enzymes include food processing and chemical manufacturing. (this updated bibliography contains 130 ..

development of high efficiency (14) solar cell array module. third quarterly report, july 15, 1979-november 15, 1979

most effort was concentrated on development of procedures to provide large area (3'' diameter) high efficiency (approx. 15.5 am1, 28 exp 0 c) p/n solar cells. these efficiencies had been obtained for 2 x 2 cm area cells, but tests showed that the problem was not reduced silicon quality near the edges of the larger slices. the problems wer..

microwave heating: industrial applications. 1970-may, 1980 (citations from the engineering index data base)

industrialized uses of microwave heating are covered in these citations of worldwide research. the topics include industrial heating and drying for processes such as paper drying, vulcanization, and textile processing. equipment design and safety are also cited (this updated bibliography contains 225 abstracts, 22 of which are new entries..