Experimental Investigation on Zirconium Oxide with Engine...

1. INTRODUCTION Nano materials have inmost a huge concentration in the last two decades because of their unique properties that find potential applications in many fields of science and technology. It has grown explosively in the last decade, because of the increasing availability of methods, synthesis of nanomaterials as well as tools of characterization and manipulation. Nanotechnology makes us to believe that we would have the ability to create anything that we could precisely define. Synthesis of nanomaterials is another key issue. General approaches in synthesizing nanomaterials involve vapour, liquid or solid state routes or their intelligent combinations. Size effects are an essential aspect of nanomaterials. Size effects are of†¦show more content†¦The most of the researches in the past for nanomaterials like CuO, Al ¬2o3 and other materials and few in Tio2 and Zro2. Ehsan et al. 2013(1) in their work add copper oxide (CuO) nanoparticles to engine oil and evaluate the produced changes in some of its properties like, viscosity, pour point, and flash point of nanolubricants at different concentrations (0.1, 0.2, and 0.5 wt.%), and also their thermal conductivity coefficient as for quality parameters which are effective in the functionality of engine oil are checked. From the results, thermal conductivity coefficient and flash point of nanolubricants with 0.1 wt.% concentration had 3% and 7.9% improvement with respect to the base oil, at a lower conce ntration with respect to the engine oil without CuO had no appreciable change. Hasnah et al. (2013) [8] In their study, instability at the interfaces is created by dispersing 0.05 wt% ZnO nanoparticles in aqueous sodium dodecyl sulphate (SDS) solution. In their experiment four samples of unlike average crystallite size were used to study the effect of particle size on the spontaneous emulsification process. From the study, ZnO Nanofluid which consists of larger particles size gives 145%increase in the oil recovery as compared with the smaller ZnO nanoparticles. In contrast, 63% more oil was recovered by injecting Al2O3 nanofluid of smaller particles size as compared to the larger one.