Lead halide perovskites have attracted extensive attention in recent years because of their excellent photoelectronic properties, such as high absorption coefficients, carrier mobilities, defect tolerances, and photoluminescence efficiencies. However, a key issue hindering commercial application is the toxicity lead. Replacing lead with other nontoxic elements promising solution to this problem...

Demand for lead-free, free-cutting brass is increasing in response to lead regulations Europe. The authors of this paper have attempted develop a lead-free with an α + β two-phase microstructure, which different from existing C6932 alloy. As result basic investigations, it was found that the addition Si β-brass dramatically reduces cutting resistance due effect appears be reduction stacking def...

In this work, to systematically investigate the evolution characteristics of electrical properties in polymorphic piezoceramics, Ba(Ti0.92Zr0.08)O3 ceramics are selected as a paradigm that possesses all general phase structures above room temperature. It is found with temperature change can be divided into three stages based on structure transforming: high ferroelectric and stable strain at R R...