Results 41 to 50 of about 115,045 (334)
The Helios mechanical despin drive assembly for the high-gain antenna reflector [PDF]
, 1976 Helios is the German-American solar probe which comes within 0.31 Astronomical Units of the sun. A special thermal design and a dry lubrication system have resulted in successful operation up to now, with Helios having finished its first orbit around the
Mueller, E. J. W.
core +1 more source
Experimental rig for measuring lubricant film thickness in rolling bearings [PDF]
, 2014 Electrical capacitance has been applied in the past for measuring the lubricant film thickness in rolling element bearings. The main difficulty arises from the fact that the measured capacitance is a combination of the capacitances of many rolling ...
Glovnea, Romeo +2 more
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Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings
Advanced Engineering Materials, EarlyView.Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira +8 more
wiley +1 more source
United Stirling's Solar Engine Development: the Background for the Vanguard Engine [PDF]
, 1984 The development and testing resulting in the Vanguard engine and some of the characteristics of the Stirling engine based power conversion unit are described.
Holgersson, S.
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Breakup of diminutive Rayleigh jets [PDF]
, 2010 Discharging a liquid from a nozzle at sufficient large velocity leads to a continuous jet that due to capillary forces breaks up into droplets. Here we investigate the formation of microdroplets from the breakup of micron-sized jets with ultra high-speed
Detlef Lohse +7 more
core +3 more sources
Advanced Engineering Materials, EarlyView.This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim +4 more
wiley +1 more source
Lubrication Pressure Injection System of Hot Rolling Line Valve Controlled Rolling
Chemical Engineering Transactions, 2018 The role of rolling lubrication technology in hot rolling production line and composition of rolling lubrication hydraulic injection system are described.
Yajun Liu, Lulu Shi, Zhongxu Lan
doaj +1 more source
, 1988 Particles suspended or dispersed in a fluid medium occur in a wide variety of natural and man-made settings, e.g. slurries, composite materials, ceramics, colloids, polymers, proteins, etc.
Bossis, Georges, Brady, John F.
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Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Positive commandable oiler for satellite bearing lubrication [PDF]
, 1977 The results of a feasibility study showed that on-orbit commandable lubrication of ball bearings can be accomplished by direct oil application to the moving ball surfaces.
James, G. E.
core +2 more sources