Abstract & Overview
the synthesis of zirconia-yttria nanoparticles in phase t', non-transformable tetragonal phase of the zirconia, is important for the reinforcement of different ceramic matrixes with nanometric and submicronic structures, in order to enhance the mechanical resistance of the composite obtaining a better and homogeneus stress distribution.the objective of this research is to obtain the phase t' by sol-gel synthesis and spray drying of the gel suspension.the precursors used in this study were: zirconium oxychloride octa-hydrate and yttrium oxide which was dissolved in hydrochloric acid and water, after salts hydrolysis, the suspension subsequently undergo to spray drying and the obtained spherical nanostructured aggregates were calcined at 650 °c.non transformable tetragonal composition employed was 7.5ysz (7.5% mol yo 1.5 ), according to the equilibrium diagram of zro 2 -yo 1.5 system.the products obtained were characterized by XrD and sem, verifying obtaining the phase t' and analyzing the microstructure of the obtained particles.From XrD results, it was determined that calcination temperature was enough for the obtention of the t' phase.its results were compared with obtained by controlled precipitation route of the same composition at high temperatures.keywords: yttria stabilized zirconia nanoparticles, sol gel -spray drying process, non transformable tetragonal phase t' gerardo Manuel RoDRíguEz toRREs msc since 1997, PhD student at the universidad michoacana de san nicolás de Hidalgo (umsnH) since 2015, title of PhD work is "influence of the Addition of stabilized zirconia Particles in the mechanical Properties of micro concretes made with submicrometric Portland composite cement".teaching experience: introduction to materials science, construction materials and road construction Workshop.Work experience: manager of project in the company impact engineering of quality sA de cv mexico, with more than 150 executive projects in road infrastructure area in period 2006-2013.