Spectroscopic Investigations of MoO3/CuO Nanocomposites : Mechanical Synthesis, Spectroscopic Characterization and Thermal Analysis

ISBN-13: 9783639864397 / Angielski / Miękka / 2016 / 124 str.

Dola Sundeep; A Gopala Krishna; T Vijaya Kumar

Opis

Nanocomposites extended a wide area of research in Engineering and allied sectors. Molybdenum is an important element used in tribology. For lubrication applications, most of lamellar/layered solid lubricants fail in open air and high temperatures above 773 K, as they turn into oxides. Mixed Oxide such as MoO3- CuO alloy or composite can provide enhanced frictional performance at different high temperatures. In the present book, we synthesized MoO3-CuO composite nanopowders at low cost by mechanical milling and characterized by XRD, SEM with EDS, FT-IR, Raman spectroscopy and TGA/DTA. X-Ray diffraction pattern demonstrates the peaks correspond to orthorhombic phase of _-MoO3 and Monoclinic phase of _-CuO. The average crystalline sizes of the two samples were found to be in 16 and 24nm. Thermogravimetry analysis and Differential Thermal Analysis (DTA) of MoO3-CuO revealed that the dual phase mixed oxide is stable up to 982 K with a negligible weight loss. Hence the synthesized mixed lubricous oxide nanocomposite powders can be used as a solid lubricant at elevated temperatures.

O autorze

Dola Sundeep Received his graduation in Electronics and CommunicationEngineering in 2013 and Master's degree in Nanotechnologyin 2015 from Jawaharlal Nehru Technological University Kakinada,India. He is working on nanocomposites and nanoelectronics.