Vaporization Kinetics and Thermodynamics of Graphite Using the High Pressure Mass Spectrometer.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1974
- Accession Number
- AD0785136
Entities
People
- Frank T. Greene
- Jacob E. Beachey
- Thomas A. Milne
Organizations
- MRIGlobal