Vaporization Kinetics and Thermodynamics of Graphite Using the High Pressure Mass Spectrometer.
Final technical rept. 1 Jul 68-15 Oct 73,
MIDWEST RESEARCH INST KANSAS CITY MO
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An apparatus for producing and sampling graphite vapor was developed and studies of the vaporization of graphite were performed. An all-graphite Knudsen cell was heated to about 3300K in vacuum without significant heating of the beam system walls or occurrence of objectionable outgassing. A continuously operating vacuum viewport and automatic pyrometer system allowed temperature monitoring under rapid window darkening conditions produced during vaporization runs. An extensive experimental determination of the neutral time-of-flight behavior of both carbon and low temperature gaseous species was done. Various ionic carbon clusters are identified. Experimental design and equipment are discussed. Modified author abstract
- Ceramics, Refractories and Glass
- Atomic and Molecular Physics and Spectroscopy