Electrical and Mechanical Properties of Irradiated Polycarbonate Using Argon Ion Beam

Cold cathode ion source used for irradiate poly carbonate films with different argon ion fluence,0.5 x 1018 and 1 x 1018 ions.cm-2 . Penetration of argon ions are observed and measure using SRIM Program. The values of dielectric constants and dielectric lossare measure at the frequency range (60 Hz–1MHz).It is also observe that the change in conductivity with influence changes.. The values of the exponent factor for samples are calculated. The mechanical properties including tensile strength (MPa) and elongation at break (%) were tested at room temperature

To study the structural, electrical, and magnetic properties of M (M = Mg2+, Mn2+, and Cd2+) doped Cu-Ni-Co-La spinel ferrites

Tertiary Cu0.25Ni0.15M0.25Co0.35La0.15Fe1.85O4 (M ¼ Mg2þ, Mn2þ, and Cd2þ) spinel ferrites powders were prepared using the cost-effective sol-gel auto combustion route. The lattice parameters, absorption and vibrational bands, energy band gap, AC conductivity, and dielectric loss of the as-prepared ferrites were all measured. The Cd2+ doped ferrite has a minimum crystallite size (D) of 50.9 nm, which is smaller compared to Mg2+ and Mn2+ doped ferrites. Furthermore, the X-ray diffraction (XRD), as well as Fourier transform infrared radiation (FTIR) and Raman analysis confirmed the doping of Mg2+, Mn2+, and Cd2+ ions on their respective lattice sites. The resistivity of the divalent ions (Mg2+, Mn2+, and Cd2+) doped ferrites decreased in the para region and increased in the ferro region as the temperature increased. Moreover, the resistivity of the Cd2+ doped ferrite was smaller when compared to the ferrites doped with Mg2+ and Mn2+ ions. From Arrhenius plots, the minimum activation energy (Δ E) 0.8671 eV was observed for Cd2+ doped ferrites. The Cd2+ substituted ferrite also has the smallest AC conductivity and dielectric loss compared to Mg2+ and Mn2+ substituted ferrites. The coercivity and saturation magnetization were 136.41 Oe and 92.29 emu/g for the Cd2+ doped ferrite, respectively. These results suggest that the Cd2+ doped ferrite material could be used in high-frequency and high-power applications