Single Crystal Terfenol-D Development.

Abstract

This report will provide a review of both existing and newly attempted methods for processing Terfenol-D. This review will describe each process and highlight both benefits and drawbacks of each method. The commonly used method of manufacturing Terfenol-D today is the referred to as the Float Zone Growth Method. EDO proposed to develop the following two alternate manufacturing methods the Traveling Heater Method and the Dash Method. The Traveling Heater Method appeared to provide the greatest probability of success and was therefor the focal point at the onset of the process development. Due the short duration of the contract, approximately 3-4 months, little effort was initiated on the DASH Method. The objective of this program has been to develop low cost processes that would produce single, non dendritic and non-rotationally twinned crystals of the rare earth magnetostrictive material Terfenol-D (RFe2). jg p.5

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1994
Accession Number
ADA299137

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemical Analysis
  • Chemistry
  • Crystal Growth
  • Elements
  • Engineering
  • Hand Cranks
  • Heating Elements
  • Internal Pressure
  • Materials
  • Measurement
  • Silicon Carbide
  • Single Crystals
  • Stainless Steel
  • Test Methods
  • Thermal Expansion
  • Vacuum Chambers

Readers

  • Materials Science and Engineering.
  • Systems Analysis and Design