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Trace Element Control Nickel Alloy Castings

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS2280D
  • Current
Published 2019-11-05 by SAE International in United States
This specification establishes testing methods and maximum permissible limits for trace elements in nickel alloy castings.
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Steel, Bars, and Forgings 3.5Cr - 9.5Ni - 18Co - 1.1Mo (0.13 - 0.17C) Double Vacuum Melted, Normalized, Annealed

AMS E Carbon and Low Alloy Steels Committee
  • Aerospace Material Specification
  • AMS6517B
  • Current
Published 2019-10-10 by SAE International in United States
This specification covers a premium aircraft-quality alloy steel in the form of bars, forgings, and forging stock.
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3D Printing of Magnetic Liquid Droplets

  • Magazine Article
  • TBMG-35260
Published 2019-10-01 by Tech Briefs Media Group in United States

Systems such as magnetic data storage devices and MRI body scan machines rely on magnets made from solid materials. Now, using a modified 3D printer, scientists have made magnetic devices from liquids.

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Electromagnetic Characteristic Comparison of Superconducting Synchronous Motor Characteristics for Electric Aircraft Propulsion Systems

IHI Corporation-Hitoshi Oyori
The University of Tokyo-Yutaka Terao, Yusuke Ishida, Hiroyuki Ohsaki
Published 2019-09-16 by SAE International in United States
This paper describes the comparison of electromagnetic characteristics of two different superconducting-motor structures for electrified aircraft propulsion systems. Future electrified aircraft demand higher output (over 16 kW/kg) and higher efficiency (> 98%) for their motors in comparison with current ones. To satisfy the demands, two kinds of superconducting motors are dealt in this study: one is partially superconducting motors (PSCMs), made of superconducting field coils and copper armature windings; the other is the fully superconducting motors (FSCMs) made of superconducting field/armature windings. They are cooled at 20 K with liquid hydrogen. We designed these two motors with finite element method to obtain the output density of 16-20 kW/kg for future electrified propulsion systems. We selected 3.0- and 5.0 MW superconducting motors, considering the application to aircraft for almost 180 passengers and 44 MW rated power for take-off. Also, we evaluated the motor weight using two kinds of cryostat materials: stainless steel (SUS) and fiber-reinforced plastic (FRP). The results show that the 5.0 MW PSCM using FRP achieved the output density of 16.9 kW/kg and the…
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Nickel Alloy, Corrosion and Heat-Resistant, Bars and Forgings 58Ni - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al - 0.05Zr - 0.006B Consumable Electrode or Vacuum Induction Melted 1975 °F (1079 °C) Solution, Stabilization, and Precipitation Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5709J
  • Current
Published 2019-09-04 by SAE International in United States
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and forging stock.
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Annotation ability available

3D-Printed Soft Mesh Robots

  • Magazine Article
  • TBMG-35155
Published 2019-09-01 by Tech Briefs Media Group in United States

Researchers have created 3D-printed flexible mesh structures that can be controlled with applied magnetic fields while floating on water. The structures can grab small objects and carry water droplets, giving them the potential to be useful as soft robots that mimic creatures living on water surfaces or that can serve as tissue scaffolds for cell cultures.

Magnetic Metamaterial Amplifies MRI

  • Magazine Article
  • TBMG-35120
Published 2019-09-01 by Tech Briefs Media Group in United States

Magnetic resonance imaging (MRI) uses magnetic fields and radio waves to create images of organs and tissues in the human body, helping doctors diagnose potential problems or diseases. Doctors use MRI to identify abnormalities or diseases in vital organs as well as many other types of body tissue, including the spinal cord and joints.

Magnetic Field Sensors: A Comparison of Two Technologies

  • Magazine Article
  • TBMG-35094
Published 2019-09-01 by Tech Briefs Media Group in United States

The Hall effect was named after its discoverer, American physicist and thermoelectric researcher Harvard Edwin Herbert Hall. The Hall sensor acts as a magnetic field perpendicular to a current-carrying conductor, creating an electrical voltage across the current flow direction. There are many possible applications of this physical principle allowing the strength of an external magnetic field to be determined and measured. Current measurements are possible as each conductor through which current flows creates its own a magnetic field, which can be used to indirectly measure the current. Since the Hall effect is most pronounced in semiconductors, typically a small plate of semiconductor material is used as the Hall element.

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Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 41.5Ni - 16Cr - 37Fe - 2.9Cb (NB) - 1.8Ti Consumable Electrode or Vacuum Induction Melted 1750 °F (954 °C) Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5606F
  • Current
Published 2019-07-31 by SAE International in United States
This specification covers a corrosion and heat-resistant nickel alloy in the form of sheet, strip, and plate.
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Alloy, Corrosion-Resistant, Bars 20Cr - 35Ni - 35Co - 10Mo Vacuum Induction Plus Consumable Electrode Vacuum Remelted Solution Heat Treated for Work Strengthening

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5758J
  • Current
Published 2019-07-31 by SAE International in United States
This specification covers a high-strength, corrosion-resistant alloy in the form of bars.
This content contains downloadable datasets
Annotation ability available