Particulate composites of Li0.5Co0.75Fe2O4 and BaTiO3 with mixed structure have been synthesized by the normal ceramic method with a variation of the molar percentages. X-ray diffraction was used to carry out the structural analysis and confirm the presence of constituent phases in the composites. The dc resistivity was measured as a function of temperature and molar percentage of constituent phases. The relative dielectric constant with variation of frequency (in the range 20 Hz to 1 MHz) and temperature at four fixed frequencies (i.e. 1 kHz, 10 kHz, 100 kHz and 1 MHz) was studied. The ac conductivity was calculated from dielectric data to understand the conduction mechanism. Hysteresis measurements were carried out to determine the saturation magnetization. The variation in magnetic behaviour with the composition of constituent phases was measured as a function of the applied dc magnetic field. A maximum magnetoelectric voltage coefficient of about 372 µV cm−1 Oe−1 was observed for the (0.3)Li0.5Co0.75Fe2O4/(0.7)BaTiO3 composite. The ME conversion factor has been explained in terms of molar constitution of ferrite–ferroelectric phases and resistivity.

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Dielectric materials developed from Tantalum (Ta) doped AgNbO3 (ATN) show excellent properties in variety of electronic technologies. In the temperature range of 70 to 400 °C, four major dielectric abnormalities were observed in ATN (x = 0.1) while in ATN (x = 0.2) the maxima of M1-M2 phase shift to low temperature value. ATN ceramics’ dielectric properties dominate temperature and electric field-based performance, which has a major effect on their properties. This study looked into the dielectric properties in ATN.

The electrical properties of the titanium doped AgNbO3 system are defined in this paper. In the modified system, doping moderately replaced Nb5+ with Ti4+ ion where the ceramics are prepared using solid-state reaction technique. The dielectric characteristics were examined at frequencies ranging from 1 kHz to 100 kHz. The dielectric value of the modified systems increased substantially while the P-E curve emerged with a value of relatively increased spontaneous polarization.

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The aim of the work is to explore and justify an innovative concept in the niche of aerospace industry called as Wing Morphing. To narrow down the study, specifically twist morphing is taken into consideration. Wings with twist and their flap counterparts are compared in similar conditions and their aerodynamic efficiency is observed. The project implementation is done with XFLR5, a VLM solver software. The results show that this concept brings about an improvement in the aerodynamic efficiency without adding much to the drag penalty. Keywords: Wing Morphing, Twist Morphing, Cl (coefficient of lift), Cd (Coefficient of drag), Alpha (angle of attack)

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