From: Rheological, Mechanical, Microstructural and Radiation Shielding Properties of Cement Pastes Containing Magnetite (Fe3O4) Nanoparticles
Material
SEM particle size [nm]
BET surface area [m2/g]
Specific gravity [g/cm3]
Bulk density [g/cm3]
Color
Fe3O4 nanopowder
50–100 nm
6–8
4.8–5.1
0.84 g/mL
Black