Swift Heavy ion irradiation effects on dielectric constant and dielectric loss in poly (ether ether ketone) (PEEK)

Rajesh Kalia; J. K. Sharma; Sapna Kalia

Volume 3, Issue 3 , 2018, , Pages 146-150


  The dielectric constant (ε') and dielectric loss (ε״) of pristine and C5+ (70 MeV) ion irradiated samples of the PEEK have been investigated with the variation of temperature at different frequencies (100 Hz, 1 kHz, 10 kHz and 100 kHz). The maxima are obtained around 170 oC in dielectric ...  Read More

Microwave absorption properties of Fe-Co oxide - thermally exfoliated graphene oxide composite

Avanish K. Srivastava; Bhumika Samaria; Smita Soni; Virendra S Chauhan; Jitendra Singh; Rajesh K Shukla; Anuj Shukla; Narendra Kumar

Volume 3, Issue 2 , 2018, , Pages 85-92


  In the ongoing search for newer materials for microwave absorption applications, the graphene merits a special consideration owing to its outstanding mechanical, thermal and electrical properties. Here, we report investigation on microwave absorption properties of Fe-Co oxide- thermally exfoliated graphene ...  Read More

Dielectric properties of epoxy based composites containing graphite, graphite oxide and thermally exfoliated graphene oxide

Bhumika Samaria; Avanish K. Srivastava; Virendra S Chauhan; Jitendra Singh; Smita Soni; Manoj K Dhaka; Rajesh K Shukla; Anuj Shukla; Narendra Kumar

Volume 3, Issue 2 , 2018, , Pages 93-98


  The discovery of graphene and subsequent development of graphene-based nanocomposites in different matrices including that in polymer is an important addition in the area of nanoscience and technology. This work deals with the studies on the dielectric properties of the nanocomposites of graphite, graphite ...  Read More

Comparative studies of the structural and electrical studies of conventional and microwave sintered Li0.35 Ni0.1Mn0.1Zn0.2Fe2.35O4 synthesized by the citrate precursor method

Sanatombi Sorokhaibam; Ibetombi Soibam; Sumitra Phanjoubam

Volume 2, Issue 1 , 2017, , Pages 67-70


  Substituted lithium ferrite having the chemical formula Li0.35 Ni0.1 Mn0.1 Zn0.2 Fe2.35 O4  have been synthesized by the citrate precursor method. The sample was given pre-sintering at 650oC in a conventional furnace. Final sintering was carried out at 900oC in a conventional surface and another ...  Read More

High Dielectric Constant SiO2 Nanoparticles

Sathosh K. Kurni; Pradip Paik

Volume 1, Issue 1 , 2016, , Pages 114-117


  SiO2 nanoparticles of average size 15-20 nm have been synthesized and its dielectric properties have been investigated as a function of frequency (between 20 Hz to 2 MHz). A very high dielectric constant of ca. 14000 at 20 Hz and at room temperature has been observed which is very high compared to the ...  Read More