60 K Phase Change Material Device.

Abstract

The objective of this Phase I SBIR program was to demonstrate the feasibility of phase change material device (PCMD) technology at 60 K. The application for this technology will be to optimize the improve the reliability, and reduce the cost of space-based infrared (IR) sensor systems for the DoD. In Phase I, an apparatus was designed and constructed for testing/characterizing PCMs and PCMDs, a one-tenth scale prototype PCMD was designed, analyzed, fabricated, and successfully tested, and four PCMs - nitrogen, freon-22, air, and nitrogen trifluoride - were performance tested. In addition, a plan was prepared for continued Phase II development. The experimental results indicate that nitrogen trifluoride is a very promising 60 K PCM. In particular, the testing showed that a nitrogen trifluoride-based PCMD has over two times the energy storage capacity of a nitrogen-based PCMD, and four times the energy storage capacity of a high heat capacity solid device.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1996
Accession Number
ADB215545

Entities

People

  • David C. Bugby

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Human Systems
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Air
  • Commerce
  • Computers
  • Critical Temperature
  • Crystal Structure
  • Department Of Defense
  • Energy Storage
  • Fingers
  • Heat Energy
  • Heat Transfer
  • Phase Change Materials
  • Phase Transformations
  • Q Meters
  • Temperature Gradients
  • Thermal Conductivity
  • Transition Temperature
  • Transitions

Readers

  • Combustion science or combustion engineering.
  • Integrated Circuit Design and Technology.
  • Software Engineering

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Satellites