Growth of Carbon Particles.

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.

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1974
Accession Number
ADA003622

Entities

People

  • David M. Mann

Organizations

  • Allergy and Asthma Medical Group and Research Center

Tags

DTIC Thesaurus Topics

  • Combustion
  • Controlled Environment
  • Environment
  • Evaporation
  • Graphitic Materials
  • Hydrocarbons
  • Isothermal Processes
  • Light Scattering
  • Materials
  • Measurement
  • Melting
  • Melting Point
  • Motivation
  • Observation
  • Particles
  • Scattering
  • Vapors

Readers

  • Aerosol Science/Aerosol Physics
  • Analytical Chemistry
  • Combustion and Flow Dynamics.

Technology Areas

  • Fully Networked C3
  • Fully Networked C3 - Command and Control