Figure 2. SEM micrograph of (a) dip coated TiO2- bound, CuFeMnO4 paint on textured aluminum surface at X 5000 magnification (b) porous block of the TiO2- bound, CuFeMnO4 paint coating formed on the textured aluminum surface taken at X 10 000 magnification

From

Optical Characterization of TiO2-bound (CuFeMnO4) Absorber Paint for Solar Thermal Applications

C. O. Ayieko, R. J. Musembi, A. A. Ogacho, B. O. Aduda, B. M. Muthoka, P. K. Jain

American Journal of Energy Research. 2016, 4(1), 11-15 doi:10.12691/ajer-4-1-2