Aggregates (fluffy) Sample 4

Practical significance

For experiments intended to mimic the formation of circumstellar dust.

Origin

Produced in the Condensation Flow Apparatus at the NASA Goddard Space Flight Center.

Main constituent
75% MgSiO, 25% MgO no hydrogen in the condensing vapor.
Color
Light brown, light-brown magnesiosilica indicative of amorphous MgSiO with a high amount of silica grains; Mg/Si=1.3
Particle size

Modal grain sizes: 50 nm, 30-50 nm
Aggregate/cluster sizes: about 650 nm, 150-400nm

SEM/TEM images:
Aggregates (fluffy) Sample 4 TEM Imge 1
Aggregates (fluffy) Sample 4 TEM Imge 1
All SEM/TEM images (zip file)
Aggregates (fluffy) Sample 4 TEM Imges
Scattering matrix (1) wavelength in nm
632.80 nm
Scattering matrix (1) table
matrix_aggregate4_632nm.txt
Scattering matrix (1) plot:
Scattering matrix elements Aggregate (fluffy) Sample 4 - 633 nm
Refractive index

Real part 1.6.

Angle range (deg)
[5,174]
Reference/s
Volten et al., 2007