Your Selections

Magnetic materials
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

new

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.

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.
new

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…
This content contains downloadable datasets
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.

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

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.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

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
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings 12Cr - 0.12Cb (Nb) (410 Modified) Ferrite Controlled, Annealed

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5609E
  • Current
Published 2019-07-01 by SAE International in United States
This specification covers an aircraft-quality, corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash-welded rings, and stock for forging or flash-welded rings.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Insert, Screw Thread, Self-Locking, UNS S66286, Locked in, Key Locked Procurement Specification for

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS4892B
  • Current
Published 2019-07-01 by SAE International in United States
This procurement specification covers inserts made from A286 alloy of the type identified under the Unified Numbering System as UNS S66286 which have self-locking internal threads and integrated locking keys to positively secure the insert against rotation when properly installed in threaded holes.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Structural Vibration and Acoustic Analysis of a 3-Phase AC Induction Motor

Peyman Poozesh
Kettering University-Anand Krishnasarma, Allan Taylor, Javad Baqersad
Published 2019-06-05 by SAE International in United States
This paper aims to study the NVH and acoustic performance of a 3-phase AC induction motor in order to develop an approach to reduce the magnetic component of noise from an electric motor in an electric vehicle (EV). The final goal of this project is to reduce the magnetic component of sound from the motor by making modifications to the end bracket of the motor housing.EVs are being considered the future of mobility mainly due to the fact that they are environment-friendly. As many companies are already investing in this technology, electric drives are set to become extremely popular in the years to come. The heart of an EV is its motor. Modern electric vehicles are quiet, furthermore with the lack of an IC engine to mask most sounds from other components, the sound from the electric motor and other auxiliary parts become more prominent. The primary source of electromagnetic noise in a motor arises from magnetic flux variations in the air gap which interfere with the resonant frequencies of the stator core. These flux…
Annotation ability available