Accession Number : AD0853237

Title :   Mass Spectrometric Study of Rare Earth-Carbon Systems. III. The Holmium-Carbon and Dysprosium-Carbon Systems.

Descriptive Note : Final technical rept. 1 May 67-30 Apr 68,

Corporate Author : ROME UNIV (ITALY) ISTITUTO DI CHIMICA FISICA ED ELETTROCHIMICA

Personal Author(s) : Balducci, G. ; Capalbi, A. ; De Maria, G. ; Guido, M.

Report Date : MAR 1969

Pagination or Media Count : 33

Abstract : The vaporization of the systems holmium-carbon and dysprosium-carbon has been studied by means of the Knudsen effusion-mass spectrometric technique. In addition to the gaseous metal atoms, dicarbide and tetracarbide molecules were identified and their bond, atomization energies measured. A determination of the heats of formation for HoC2(s) and DyC2(s) has been made. (Author)

Descriptors :   (*RARE EARTH COMPOUNDS, VAPORIZATION), (*CARBIDES, VAPORIZATION), HOLMIUM COMPOUNDS, DYSPROSIUM COMPOUNDS, HEAT OF FORMATION, MASS SPECTROSCOPY, VAPOR PRESSURE, THERMOCHEMISTRY.

Subject Categories : Ceramics, Refractories and Glass
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE