Advanced Materials for Turbomachinery. Technical Memo Number 2. Advanced Materials Compatibility with Storable Propellants (Monomethyl Hydrazine and Nitrogen Tetroxide)

Abstract

The advanced materials for turbomachinery (AMT) program is tasked with determining which advanced materials currently on the market are the most suitable for application to turbopumps. Initial work involves pumps carrying storable propellants (Monomethyl Hydrazine (MMH) and Nitrogen Tetroxide (NTO), and the first tests to be completed are compatibility tests of Liquid Crystal Polymers (LCP's) along with some Metal Matrix Composites (MMC's) and Ceramic Matrix Composites (CMC's). Preliminary investigations have been completed, and most of the LCP'S have shown themselves to be unsuitable for storable propellant applications. One LCP, however, has been shown to be compatible with NTO and it is under consideration for use in further applications. The CMC's and MMC's examined have proven to be more compatible than LCP's, but they are not impervious to the propellants. Testing was not carried out under extreme conditions. (high temperatures, samples under stress), so it does not necessarily indicate how a material will perform under actual turbopump conditions.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1991
Accession Number
ADA246725

Entities

People

  • Thomas R. Hill

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Advanced Materials
  • Body Weight
  • Ceramic Matrix Composites
  • Chemical Reactions
  • Composite Materials
  • Crystals
  • Hydrazines
  • Liquid Crystal Polymers
  • Liquid Crystals
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Metal Matrix Composites
  • Polymers
  • Propellants
  • Rocket Oxidizers
  • Rocket Propellants

Readers

  • Materials Science and Engineering.
  • Reinforced Composite Materials
  • Rocket Propulsion.