Growth, Spectral, Optical, Electrical and Third Order Nonlinear Optical Properties of Organic Single Crystal: p-Toludinium Fumarate

s. Suresh; v. Seetharaman; R. Mohan Kumar

Volume 5, Issue 1 , 2020, , Pages 1-4

  p-Toludinium fumarate (PTF) a potential organic single crystal was grown by slow evaporation solution growth technique. Single crystal X-ray diffraction study was used to compute the unit cell parameters. The nuclear magnetic resonance spectral study reveals the proton and carbon molecular structure ...  Read More

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

Structural and electrical behaviour of sol-gel derived Li-Ni-Co ferrite/SiO2 nanocomposites

Nandeibam Nilima; Mamata Maisnam; Sumitra Phanjoubam

Volume 2, Issue 5 , 2017, , Pages 310-314

  Li-Ni-Co ferrite/SiO2 composites with representative formula Li0.41Ni0.1Co0.08Fe2.41O4+ xSiO2 (i.e., x = 0wt. %, 5wt. %,10wt. % and 20wt. %) were prepared by sol-gel method. The prepared composites were pre-sintered at 600ºC for 2 hrs and then finally sintered at 1000ºC for 6 hrs. X-ray diffraction ...  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