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Dr Anshuman Srivastava, obtained his Ph.D in the field of Material Science and Engineering from Indian Institute of Technology (BHU) Varanasi, India. He has worked as a Joint Director (R and D), IIP Mumbai, Government of India. Presently, he is working as Associate Professor in Mechanical Engineering Department, SIET Allahabad, India. He has published many research papers in journals like Composites Science and Technology, Journal of Power Sources, Material Research Bulletin and many others. He is life member of various professional bodies like Electron Microscopy Society of India, International Association of Engineers (IAENG), IAENG Society of Industrial Engineering, IAENG Society of Mechanical Engineering, Material Research Society of India, Indian Society for Technical Education, Asian Polymer Association, Indian Society for Advancement in Material Processing and Engineering. Presently he is guiding several under graduate and post graduate research work. His research work is focused on Dielectric and Mechanical Properties of PVDF/CCTO and modified CCTO composites. Effect of varying amount of modified calcium copper titanate (CCTO and La. Nb, Zr and Sn doped CCTO) in PVDF has been investigated on the mechanical and dielectric properties of the composites. Phase analysis has been done using powder X-ray diffraction (XRD). SEM images were recorded to study the surface morphology. Thermal analysis has been done using Thermogravimetric analysis (TGA). Microstructural, dielectric and mechanical properties have been investigated in detail. Composites exhibit higher values of Young’s modulus than that of PVDF. Dielectric permittivity increases with the increase in ceramic content. Dielectric loss increases slightly with increasing temperature and decreases with increasing frequency. Dielectric relaxations have been studied using modulus spectroscopy. Two dielectric relaxations have been observed, one in the low frequency range and the other in the intermediate frequency range. The low frequency relaxation is attributed to the Maxwell-Wagner-Sillar type while the high frequency relaxation is due to αc relaxation associated with the molecular motion of the polymer chains in the crystalline regions of PVDF.
Polymer matrix composites,
Metal matrix composites,
Natural fibre reinforced Epoxy based Composites,
Biocomposites and Nanocomposites.
|Asheesh Kumar and Anshuman Srivastava|
|Research Article: Ind Eng Manage 2017, 6: 234|
|Rajul Rastogi, Prabhat Kumar Bhagat, Anshuman Srivastava, Yuktika Gupta, Pawan Joon, Asif Majid Wani, Sagar Parashar and Vijai Pratap|
|Case Report: J Neuroinfect Dis 2016, 7: 225|
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