Thermodynamic Properties of Bi-Metallic Powders

Abstract

The object of the program is to study the heats of combustion of intermetallic compounds as compared with mechanical mixtures of the corresponding metals. The program will consist of three parts: Preparation of ultrafine powders, bimetallic alloy (compound) systems, Al B, Zr Al, Zr Si, Al Li, and Ti Si, and of the corresponding elements; determination of the heats of formation of: the above binary compounds; and the oxides and related products of combustion of the above binary alloys; the preparation of research quantities for further evaluation. A Parr series 1200 adiabatic calorimeter was installed, and its heat equivalent determined. A few preliminary runs on the determination of the heat of combustion of Al metal powder revealed that this reaction is very violent. A few runs were made to explore the field of solution calorimetry. It was found that Al powders are slow to react with 1 N HCl at room temperature. Only at temperatures exceeding 55 C did reaction rates become high enough to complete the reaction in the course of minutes.

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Document Details

Document Type
Technical Report
Publication Date
Jan 05, 1962
Accession Number
AD0269265

Entities

People

  • Robert W. Steeves
  • Willem Versluys

Tags

Communities of Interest

  • Counter IED
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Binary Alloys
  • Calorimeters
  • Combustion
  • Contracts
  • Electron Beams
  • Elements
  • Government Procurement
  • Heat Energy
  • Heat Of Combustion
  • Heat Of Reaction
  • Materials
  • Metals
  • Powder Metals
  • Powders
  • Power Supplies
  • Thermodynamic Properties

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Rocket Propulsion.