Preparation of Submicron Size Gamma Lithium Aluminate Particles from the Mixture of Alumina Sol and Lithium Salt by Ultrasonic Spray Pyrolysis

Morphology and Luminescence of(GdY)2O3:Eu Particles Prepared by Colloidal Seed-Assisted Spray Pyrolysis

“…This morphology difference in colloidal and aqueous solutions was due to the difference in precipitation mechanism inside the droplets. In the case of colloidal solution, the salts precipitate on the surface of nanometer size gadolinium hydroxy carbonate sol dispersed uniformly in the droplet by heterogeneous precipitation (15,16) and so the particles prepared from colloidal solutions have a filled shape.…”

Study of the structure and optical properties of rare-earth-doped aluminate particles prepared by an amorphous citrate sol–gel process

“…The sol-gel method is a wet-chemical process that is advantageous compared to solid-state reaction methods. Such advantage had been related to the better product quality and lower processing temperature [6,7]. It had been an efficient technique for the preparation of phosphors due to good mixing of the starting reagents and relatively low reaction temperature, which resulted in more homogenous products than those obtained by direct solid-state reactions.…”

Preparation and characterization of Nano spinel powder via co-precipitation and sol-gel techniques

“…Increase of such ecological problems of chromite containing refractories caused repeated interesting in magnesia-spinel products. This technology was strongly investigated in Japan 30 years ago [13] and exported to European countries [14,15].…”