New Development of Rapid-Solidified Fe-Ga Sensor/Actuator Alloy

Abstract

Rapid-solidification method was applied to make Fe-15at%Ga and Fe-17at%Ga ribbons of 100 micrometers thickness. These ribbons have large magnetostriction of 270 ppm, where the coercive force exhibits a maximum value. The phenomenon is related to special metallic texture, that is, the ribbon has strongly 001-oriented textured fine columnar microstructure with grain size of 2-5 micrometers. The ribbon has little-hysteresis loop of magnetostriction and a good ductility (i.e., full bending is possible). Rapid-solidified Fe-Ga alloy has a promising possibility as a new magnetic-induced sensor/actuator material.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 17, 2003
Accession Number
ADA429556

Entities

People

  • C. Saito
  • Manfred Wuttig
  • T. Okazaki
  • Takaaki Watanabe
  • Y. Furuya

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Actuators
  • Alloys
  • Coercivity
  • Crystal Structure
  • Crystals
  • Detectors
  • Diagrams
  • Fiber Spinning
  • Heat Treatment
  • Magnetic Fields
  • Magnetization
  • Materials
  • Polycrystals
  • Schematic Diagrams
  • Single Crystals
  • Strain Gages
  • Universities

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.