VISCOUS FLOW AND COMPRESSIBILITY OF MOLTEN BORATES AT HIGH PRESSURE.

Abstract

A viscometer was designed and built to measure PVT (pressure, volume temperature) relationships and viscosities of glasses at temperature of up to 600C and 400 bars. Viscosities of boric oxide and binary borates, sodium oxide-boric oxide, sodium fluoride-boric oxide, and water-boric oxide were measured. Theoretical studies were made of the data and the results reduced to constant volume where the activation volume for flow increased drastically as the pressure increased. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1968
Accession Number
AD0701774

Entities

People

  • John D. Mackenzie

Organizations

  • Rensselaer Polytechnic Institute

Tags

DTIC Thesaurus Topics

  • Compressive Properties
  • Flow
  • Fluorides
  • High Pressure
  • Mechanical Properties
  • Physical Properties
  • Viscometers
  • Viscosity
  • Viscous Flow

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.