Accession Number : AD0701774

Title :   VISCOUS FLOW AND COMPRESSIBILITY OF MOLTEN BORATES AT HIGH PRESSURE.

Descriptive Note : Final scientific rept. 1 Oct 64-Sep 30 68,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY N Y

Personal Author(s) : Mackenzie,John D.

Report Date : 30 SEP 1968

Pagination or Media Count : 11

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)

Descriptors :   (*BORATES, HIGH PRESSURE), VISCOSITY, EQUATIONS OF STATE, GLASS

Subject Categories : Physical Chemistry
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE