Investigations and Comparison of Thermogravimetric and Differential Thermal Analysis of Molybdenum Trioxide and Its Nanocomposite PowdersJournal: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) (Vol.10, No. 3)
Publication Date: 2020-06-30
Authors : T. Vijaya Kumar; K.V. Ramana;
Page : 6403-6412
Keywords : MoO3; Ball Milling; Nanocomposite; TGA and DTA;
The objective of the present work was to investigate and compare thermo gravimetric analysis (TGA) and differential thermal analysis (DTA) of MoO3 , MoO3 -CuO, MoO3 -V2O5 and MoO3 -TiO2 composite nano powders using ball synthesis techniques at different intervals of time. The synthesized composite nanopowders were characterized by spectroscopic characteristics such as Powder X Ray diffraction (PXRD), Scaning Electron Microscopy (SEM), Electron Dispersive X Ray Spectroscopy (EDS), Thermo gravimetric Analysis (TGA) and Differential Thermal Analysis (DTA). The orthorhombic phase of V2O5 , MoO3 , TiO2 and monoclinic phase of CuO were revealed by X-Ray peak profile demonstrates. MoO3 , MoO3 -CuO and MoO3 -TiO2 SEM photographs Indicate the unusual particle forms and MoO3 -V2O5 , show abnormal circular structures of vanadium flakes deposits. The EDS spectrum confirms the presence of the elements of the prepared samples. From the thermal analysis it has observed that thermo gravimetric and differential thermal analysis plots for MoO3 - CuO nanocomposite powders shows high thermal stability up to 7100C as there is a negligible weight loss which gives the better results. The as-synthesized nanocomposites can also be used at a high temperature as stable lubricants.
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