Sudhir Tiwari
Indian Institute of Technology Delhi
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Publication
Featured researches published by Sudhir Tiwari.
Nanomaterials and Nanotechnology | 2013
Sudhir Tiwari; Jayashree Bijwe; S. Panier
The surface of carbon fabric (CF) was treated with nanoparticles (NPs) of Ytterbium fluoride (YbF3) (40-80nm size) in various amounts (0, 0.1, 0.3 and 0.5wt%) to improve its wettability with a Polyetherimide (PEI) matrix. The effect of treatment on the fibres of the CF was also studied by adhesion testing and fibre tow tension testing. An improvement in wettability with PEI and a slight reduction in the tensile strength of the CF was observed in these tests. Fourier transform infrared-attenuated total reflectance spectroscopy (FTIR-ATR) indicated the addition of functional groups on the fabric after treatment. Micro- Raman spectroscopy (MRS) showed a slight distortion in the structure of the CF due to the treatment. Increased roughness of the fibre surface and adhesion of NPs on the fibre surface were observed by field emission scanning electron microscopy (FESEM). Composites were developed based on untreated and surface-treated CFs by impregnation techniques. The composites were analysed for interlaminar shear strength (ILSS) and a maximum improvement of 61% was observed for the 0.3% concentration of YbF3, followed by a slight decline in ILSS, indicating that it was the optimum dose.
Wear | 2011
Sudhir Tiwari; Jayashree Bijwe; S. Panier
Journal of Materials Science | 2011
Sudhir Tiwari; Mohit Sharma; S. Panier; Brigitte Mutel; Peter Mitschang; Jayashree Bijwe
Polymer Composites | 2008
Jayashree Bijwe; Rekha Rattan; M. Fahim; Sudhir Tiwari
Journal of Materials Science | 2012
Sudhir Tiwari; Jayashree Bijwe; S. Panier
Tribology Letters | 2011
Sudhir Tiwari; Jayashree Bijwe; S. Panier
Wear | 2011
Sudhir Tiwari; Jayashree Bijwe; S. Panier
Materials Science and Engineering B-advanced Functional Solid-state Materials | 2010
Mohit Sharma; Sudhir Tiwari; Jayashree Bijwe
Wear | 2012
Sudhir Tiwari; Jayashree Bijwe; S. Panier
Tribology International | 2011
Sudhir Tiwari; Jayashree Bijwe; S. Panier