Simultaneous measurement in fluid n-D/sub 2/ of P, V, T and sound velocity to 20 kbar. [T= 75 to 300 K]

Conference · Sat Jan 01 00:00:00 EST 1977

OSTI ID:7209190

Liebenberg, D H; Mills, R L; Bronson, J C

The molar volume and ultrasonic velocity of fluid n-D/sub 2/ as a function of pressure at constant temperature were measured simultaneously in a piston--cylinder apparatus over the range 75 less than or equal to T less than or equal to 300/sup 0/K and 2 less than P less than 20 kbar. A total of 1340 data sets along 33 isotherms were obtained with an average deviation of 0.4 percent both in volume and ultrasonic velocity. These data are being used to obtain an equation of state for deuterium. Comparisons with earlier hydrogen data show that the D/sub 2/ molar volumes are about 2 percent less than the H/sub 2/ molar volumes and that the sound velocity in D/sub 2/ is about 1/root times the sound velocity in H/sub 2/ at the same pressure and temperature. The sound velocity differences are much larger than were measured between D/sub 2/ and H/sub 2/ in solid and liquid phases. These data represent the first comprehensive high-pressure study of the properties of fluid deuterium, a material that is important in energy research. 5 figures.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7209190
• Report Number(s): LA-UR-77-739; CONF-770537-6
• Resource Relation: Conference: 7. symposium on thermophysical properties, Gaithersburg, MD, USA, 10 May 1977
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DEUTERIUM
EQUATIONS OF STATE
ULTRASONIC WAVES
LIQUIDS
LOW TEMPERATURE
MEDIUM TEMPERATURE
PRESSURE DEPENDENCE
VELOCITY
VERY HIGH PRESSURE
VOLUME
EQUATIONS
FLUIDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
SOUND WAVES
STABLE ISOTOPES
360603* - Materials- Properties