Results 51 to 60 of about 8,528 (155)
A review of friction stir welding of aluminium matrix composites [PDF]
, 2015 As a solid state joining process, friction stir welding (FSW) has proven to be a promising approach for joining aluminium matrix composites (AMCs). However, challenges still remain in using FSW to join AMCs even with considerable progress having been ...
Arbegast +63 more
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Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.Abstract We analyze large‐scale shear zones that are exposed along the equatorial chasmata of Eastern Aphrodite Terra to understand the role of strain localization in the deformation of the Venusian crust. These shear zones dip at low angles opposite to the slopes, forming terraces that expose portions of the shear planes.
Thomas Kenkmann +2 more
wiley +1 more source
Optimized Stud Arc Welding Process Control Factors by Taguchi Experimental Design Technique
, 2012 Welding is an ancient craft that combines art, science and human skill. It can be traced back to around 3000 BC, with the Sumerians and the Egyptians. The Sumerians used swords with parts joined by hard soldering. The Egyptians found that, after heating iron, it was much easier to work with welding just by hammering the parts to join them.
openaire +3 more sources
Index to NASA Tech Briefs, January - June 1966 [PDF]
, 1966 Index to NASA technological innovations for January-June ...
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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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Improved micro-contact resistance model that considers material deformation, electron transport and thin film characteristics [PDF]
, 2009 This paper reports on an improved analytic model forpredicting micro-contact resistance needed for designing microelectro-mechanical systems (MEMS) switches. The originalmodel had two primary considerations: 1) contact materialdeformation (i.e.
Coutu, Ronald A. +2 more
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High energy density capacitors for vacuum operation with a pulsed plasma load [PDF]
Results of the effort of designing, fabricating, and testing of a 40 joules/lb (88.2 joules/Kg) high voltage energy storage capacitor suitable for operating a pulsed plasma thruster in a vacuum environment for millions of pulses are presented.
Guman, W. J.
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Signal analysis of voltage noise in welding arcs [PDF]
Gas tungsten arc welds were made on low alloy steel plates to which intentional defects (discontinuities) were imposed. Disruption of shielding gas, welding over surface films, and tack welds produce changes in what is otherwise a relatively uniform ...
Eagar, T. W., Elis, E.
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Determination of airborne nanoparticles from welding operations [PDF]
, 2012 The aim of this study is to assess the levels of airborne ultrafine particles emitted in welding processes (tungsten inert gas [TIG], metal active gas [MAG] of carbon steel, and friction stir welding [FSW] of aluminum) in terms of deposited area in ...
Albuquerque, Paula Cristina +3 more
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Critical Review on Magnetically Impelled Arc Butt Welding: Challenges, Perspectives and Industrial Applications. [PDF]
Materials (Basel), 2023 Chaturvedi M +4 more
europepmc +1 more source