![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A process has been developed to produce nano MgO from natural raw magnesite through spray pyrolyser route. The nano MgO particles obtained have been comprehensively characterized by X-ray diffraction, particle size analysis, scanning electron microscopy and chemical analysis. The developed nano MgO has 99% MgO content and its average particle size is 80 nm. The nano MgO has been used as an additive for manufacture of precast high alumina castable refractory. The physical, chemical, thermo-mechanical and mineralogical properties of the castable products with and without nano MgO addition have been compared. It has been observed that addition of nano MgO enhances the thermo-mechanical, corrosion and erosion resistance of the precast high alumina products.