Accession Number:

ADA003622

Title:

Growth of Carbon Particles.

Descriptive Note:

Annual rept. 1 Aug 73-1 Aug 74,

Corporate Author:

AERODYNE RESEARCH INC BURLINGTON MASS

Personal Author(s):

Report Date:

1974-10-01

Pagination or Media Count:

25.0

Abstract:

Soot formation is an undesirable facet of most hydrocarbon combustion processes. The present work has focused upon carbon particle formation in a controlled environment using in situ techniques to monitor carbon vapor molecular species and particle formation. A second motivation for studying carbon is the general scarcity of information about the nucleation process of high melting point materials. The specific approach taken in this work was to study particle formation in a cooling jet of carbon vapor diluted by an inert, carrier gas. Vapor was produced by the evaporation of a resistance heated graphite tube. The carbon vapor, mixed with carrier gas flowed into a light scattering chamber where spectroscopic measurements were performed on the cooling vapor. The report discusses the experimental apparatus, with particular emphasis on the carbon vapor furnace, observations of C2 and C3 molecular species and observations of carbon particle formation, and indicated directions for continued studies.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE