**Rahmat Ellahi 1,2,\*, Ahmed Zeeshan 1, Farooq Hussain 1,3 and Tehseen Abbas <sup>4</sup>**


Received: 14 September 2018; Accepted: 10 November 2018; Published: 24 November 2018

**Abstract:** The current effort is devoted to investigate the shiny thin film with a metallic tactile covering of nanoparticles over the surface of a rotating disk. To decorate, glowing silver and gold particles were chosen. Four illustrative base liquids, namely (i) ethanol, (ii) methanol, (iii) ethylene-glycol, and (iv) water were considered with different geometries, which have great importance in industrial usage. An emphasis on comparative multi nanofluid analysis was used to make a sound judgment on which one of the fluids best suited the metallic glittering process of spin coating. The film thickness process highly depends on the process of evaporation, which takes some time to settle on the disk's surface. It was found that of the base fluids, the best choices were ethanol alloys with silver. Hence, one can conclude that from an experimental point of view, if silver alloy is used for coating, then only those liquids can be considered that exhibit ethanol-like properties. The impact of pertinent parameters with different aspects are graphically illustrated in each case.

**Keywords:** thin film; spin coating; rotating disk; nanoparticles; Newtonian fluids
