Sm and Mn co-doped PMN-PT piezoelectric ceramics: Defect engineering strategy to achieve large d33 and high Qm

Enhanced high‐power performance of Fe‐doped PZMNZT piezoelectric ceramics

“…The (𝐹𝑒 ′ (𝑍𝑟 0.48 𝑇𝑖 0.52 ) − 𝑉 •• 𝑂 ) ′ or (𝐹𝑒 ′′ (𝑍𝑟 0.48 𝑇𝑖 0.52 ) − 𝑉 •• 𝑂 ) defect dipoles were generated when the oxygen vacancies were combined with the iron ion defect. The defect dipoles led to the existence of E i , which could correspondingly restrict the domain wall motion and suppress high-field tan δ 36 .…”

“…The $$( {Fe_{( {Z{r}_{0.48}T{i}_{0.52}} )}^{\prime} - V_O^{ \bullet \bullet }} )^{\prime}$$ or ($$Fe_{( {Z{r}_{0.48}T{i}_{0.52}} )}^{^{\prime\prime}} - V_O^{ \bullet \bullet }$$) defect dipoles were generated when the oxygen vacancies were combined with the iron ion defect. The defect dipoles led to the existence of E i , which could correspondingly restrict the domain wall motion and suppress high‐field tan δ 36 .…”

Recycling hazardous and energy-demanding piezoelectric ceramics using an oxide–halide perovskite upside-down composite method

“…Recyclability using the oxide-halide perovskite upside-down composite method could also be proven with Pb-free piezoelectric compositions, with BT-C and KNBNNO-C showing g 33 ) on the energy budget of fabrication (F) for the ceramic and composite samples studied in this work as well as for selected high-performance counterparts reported in the literature. 16,17,32,[48][49][50][51][52][53][54][55][56][57][58] In (b), the datapoint marked with * has an actual value of zero.…”

Effect of electric field frequency on double hysteresis loops and energy storage characteristics of Sm/Mn co-doped PMN-PT ferroelectric ceramics

“…[11][12][13][14][15][16][17] Most of the previous studies were on single element doping, while few studies were on multi-element co-doping, especially on A-site and B-site co-doping. [18][19][20] In this paper, A-site doping elements Sm ions and B-site doping elements Mn ions were co-doped in PMN-PT ceramics. Double hysteresis loops were formed and their shapes vary with the doping concentration and testing frequency, which can be used to regulate the energy storage performance of PMN-PT ceramics.…”

“…When Sm and Mn were co-doped into PMN-PT, they replaced Pb and Ti, respectively. The defect formula can be described as: 18) Sm O PbO 2Sm V 3O 3…”