Huanpo Ning

TL;DR: In this article, the effects of frequency, temperature and microstructure (point defects, grain size and texture) on the ferroelectric properties of several Ferroelectric compositions, including BaTiO3, lead zirconate titanate (PZT), lead-free Na0.5K0.15Nd0.06FeO3.

TL;DR: Results not only pave the way for applications of Bi₅TiO₃-based piezoceramics, but also have great impact on the understanding of the mechanism of depolarization so as to provide a new design to optimize the performance of lead-free piezoelectrics.

TL;DR: In this paper, the ferroelectric and piezoelectric properties of lead-free Nd2Ti2O7 and La2Ti 2O7 grain-oriented ceramics prepared by spark plasma sintering using a two-step method are reported.

TL;DR: In this paper, an increase in the maximum polarization with increasing temperature was attributed to three possible mechanisms: polarization extension favored by the simultaneous presence of polar and non-polar phases, the occurrence of electric field-induced transitions from weakly polar relaxor to ferroelectric polar phase; and the enhanced polarizability of the crystal structure induced by the weakening of the Bi-O bond with increasing temperatures.

TL;DR: In this article, the physical, mechanical, and structural properties of n-type Mg2Si1−xSnx and p-type higher manganese silicide (HMS) compositions were investigated for the development of practical waste heat generators for automotive and marine thermoelectric applications, in the frame of the European Commission (EC)-funded PowerDriver project.