Results 101 to 110 of about 20,755 (235)
NASA Tech Briefs Index, 1977, volume 2, numbers 1-4 [PDF]
Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for ...
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Joining lead wires to thin platinum alloy films [PDF]
, 1983 A two step process of joining a lead wire to .000002 m thick platinum alloy film which rests upon an equally thin alumina insulating layer which is adhered to a metal substrate is described.
Claing, R. G., Przybyszewski, J. S.
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Progress of MXenes‐based responsive materials for soft sensors and actuators
Responsive Materials, EarlyView.MXene, a promising 2D material, excels at mimicking human sensing and feedback system, making it ideal for intelligent robots. This review first covers its structure, properties, and synthesis. It then summarizes recent MXene‐based sensors and actuator.
Peidi Zhou +10 more
wiley +1 more source
A Review of Welding in Space and Related Technologies [PDF]
Deployment of welding and additive manufacturing (AM) technologies in the space environment has the potential to revolutionize how orbiting platforms are designed, manufactured, and assembled.
Naden, N., Prater, T. J.
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Index to NASA Tech Briefs, January - June 1966 [PDF]
, 1966 Index to NASA technological innovations for January-June ...
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Influence of Higher Tramp Element Level on the Weldability of Automotive Steels
steel research international, EarlyView.The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt +6 more
wiley +1 more source
Nine percent nickel steel heavy forging weld repair study [PDF]
The feasibility of making weld repairs on heavy section 9% nickel steel forgings such as those being manufactured for the National Transonic Facility fan disk and fan drive shaft components was evaluated.
Berry, R. F., Jr. +3 more
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Infrared Thermography for Weld Inspection: Feasibility and Application [PDF]
, 2018 Traditional ultrasonic testing (UT) techniques have been widely used to detect surface and sub-surface defects of welds. UT inspection is a contact method which burdens the manufacturer by storing hot specimens for inspection when the material is cool ...
Collins, William +2 more
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steel research international, EarlyView.This review investigates the processing‐microstructure‐property relationships in ferritic stainless steels (FSSs). It highlights advances in deformation behavior, heat treatments, surface modifications, and alloying effects. Theoretical models, including Johnson‐Mehl‐Avrami‐Kolmogorov, Arrhenius, nucleation theory, and diffusion theories, are discussed
Shahab Bazri +4 more
wiley +1 more source
Development of a beam builder for automatic fabrication of large composite space structures [PDF]
The composite material beam builder which will produce triangular beams from pre-consolidated graphite/glass/thermoplastic composite material through automated mechanical processes is presented, side member storage, feed and positioning, ultrasonic ...
Bodle, J. G.
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