In this work, the conduction and relaxation behavior of lithium-ion conducting monoclinic Li[Formula: see text]Zr[Formula: see text]Al[Formula: see text](PO[Formula: see text] (LZAP) ceramic prepared via sol–gel method was investigated. Rietveld refinement of the X-ray diffraction data confirmed the structure of LZAP as monoclinic with space group [Formula: see text]21/[Formula: see text] at room temperature. The permittivity data were fitted using a modified Cole–Cole equation containing the complex conductivity terms to rationalize the giant dielectric constant and loss factor observed at lower frequencies. In addition, fittings revealed the presence of two thermally activated dielectric relaxations processes in LZAP ceramics, which were attributed to the lithium ions movement within the grain and grain boundary confines. The activation energies computed from the Arrhenius fitting of relaxation times associated with the grain and grain boundary regions were [Formula: see text]0.447 ± 0.009 eV and [Formula: see text]0.46 ± 0.01 eV, respectively. The activation energies for grain and grain boundary Li[Formula: see text] conduction were also found to have similar values ([Formula: see text]0.42 eV for grain, and 0.46 eV for grain boundary).
In this work, Shape-memory alloy (SMA)-based micromirrors were fabricated and the actuation was controlled through thermal stimulus. The micromirrors play a significant role in scanning and light deflection in the MEMS field. The SMA micromirrors were developed by coating CuAlNi thin film on strained kapton polyimide substrate using thermal evaporation. Later patterns were made on micromirrors for transmission and reflection of the light beam during actuation. The displacement of each distinct pattern was explored at different voltages ranging from 1 to 3 V through Joule heating technique. The maximum displacement observed was 1.9 mm for deltoid-patterned micromirror at 3 V. The ladder pattern recorded the minimum deflection of 1.1 mm at 3 V. The shape recovery ratio analysis showed that deltoid pattern bimorph had the highest recovery of 1.656. Energy-Dispersive X-ray Spectroscopy (EDS) analysis showed that the composition was maintained after the deposition.
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