title: Synthesis of BaFe12O19 Materials by Mechano-Thermal Route: Novel Inorganic Pigment with High Near-Infrared Reflectance.
abstract: We have prepared BaFe12O19 materials by annealing the ball milled reaction mixture at 1000 degrees C and studied by various characterization techniques. Among the several annealed samples, the samples prepared from 2-5 h ball milled powder show (nearly) single phase of BaFe12O19 materials with reduced average particle size of -42 nm, whereas the reaction mixture ball milled for longer duration (≥10 h) yielded contaminated BaFe12O19 phase. The platelet hexagonal shape grain is seen in the high resolution scanning electron microscope (HRSEM) micrographs for the BaFe12O19 materials. The HRSEM images indicate sizes of grains are in the range of 418 nm to 2.58 μm in hexagonal basal plane and a range of 1 to 2.5 Am in direction of hexagonal axis. The highlight of the work is the present BaFe1201, materials may be used as novel inorganic pigment due to high near infrared (NIR) reflectance.
authors.forename: S
authors.initials: S
authors.lastname: Balamurugan
authors.forename: B C
authors.initials: BC
authors.lastname: Brightlin
authors.forename: V Sherly Arputha
authors.initials: VS
authors.lastname: Kiruba