Fly Ash

Practical significance

Clay is believed to occur on different Solar System bodies such as Mars satellites and asteroids. Moreover, it is an important component of mineral aerosols in the Earth atmosphere.

Origin

Inorganic fraction (mainly clays) of the combustion of powdered coal in an electricity power plant.

Main constituent
Clay minerals
Color
Gray brown powder
Particle size Fraunhofer: reff (μm)
3.65
Particle size Fraunhofer: veff
10.9
Size distribution plot:
Size Distribution Fly Ash
Size distribution table
size_flyash.txt
Particle shape

Irregular

SEM/TEM images:
Fly Ash SEM Image
All SEM/TEM images (zip file)
Fly Ash SEM Images
Scattering matrix (1) wavelength in nm
442.00 nm
Scattering matrix (1) table
matrix_flyash_442nm.txt
Scattering matrix (1) plot:
Scattering matrix elements Fly Ash - 442 nm
Scattering matrix (2) wavelength in nm
633.00 nm
Scattering matrix (2) plot:
Scattering matrix elements Fly Ash - 633 nm
Refractive index

Estimated to be in the range [1.5-1.7] + i[0.00001-0.001]

Angle range (deg)
[5,173]
Reference/s
Muñoz et al., 2001