Chapter: Formation of
Nanoparticles and Solids
Jäger, C., Gail,
H.-P., Dohmen, R., Mutschke, Harald, Mennella, V. 80
Introduction: Condensation of cosmic dust in astrophysical environments
1.1 Mineral formation and condensation sequences of
magnesium silicates and iron in M-stars
1.2 Condensation of carbonaceous grains in C-stars
Section: Gas-phase condensation of astrophysically relevant particles
2.1 Introduction
2.2 Overview on methods and analytical tools
(HRTEM, EELS,
13C NMR, UV/VIS, IR, Raman, chromatographic methods)
Short range and
long range ordering
Particle beam
generation
Section: Gas-phase condensation experiments of magnesium iron silicates
3.1 Compositional and structural characterization of the
condensates
3.2 Spectral properties of the silicate condensates
Section: Gas-phase condensation of carbonaceous particles by laser pyrolysis and laser ablation
4.1 Condensation of very
small seed-like carbonaceous nanoparticles
4.2 TiC and SiC
co-condensation with carbon
4.3 Structural and
spectroscopic characterization of the condensation products
4.4 Investigation of
the by-products of carbon grain formation
4.3 Condensation pathways
of carbon nanograins in different temperature regimes
and the role of
intermediate and by-products
Section: Processing of cosmic dust grains (UV irradiation, temperature, shock waves, cosmic rays)
5.1 Silicates
5.1.1 Processing of silicates by gas-mediated solid-solid
reactions and the role of diffusion
5.1.2 Formation of crystalline silicates by annealing
5.1.3 Structural and compositional modifications by ion
irradiation
5.1.4 Processing by UV radiation
5.2 Carbon
5.3 Effect of UV irradiation and annealing on the structure
and spectral properties of amorphous carbon nanoparticles