The piezoelectric properties of transparent 0.75Pb(Mg1/3Nb2/3)O3-0.25PbTiO3:Pr3+ ceramics

Enhancement of the photoluminescence modulation ratio in highly transparent KNN-based ceramics for optical information storage

“…30 Besides, it was found in our previous work that Pr 3+ -doping can reduce the grain size and greatly improve transparency in PMN-PT ceramics. 31 Therefore, we choose Pr 3+ as the doping element of KNN ceramics. In this study, we prepared single Pr element doped KNN (K 0.5 Na 0.5 NbO 3 – x Pr with x = 1.0, 2.0, 2.5, 3.0, abbreviated as KNN– x Pr) transparent photochromic ceramics via pressure-less sintering.…”

Superior lead-free high-temperature piezoceramics of BiFeO3–BaTiO3–(Bi0.5Na0.5)TiO3 through cooperative regulation

“…3(a) and (b) compare the variation of d 33 and ε r against T c for the presently studied compositions with other MPB piezoelectric ceramic systems, respectively. 6–10,20–53 It is evident that the d 33 value of most MPB compositions can be further enhanced by adjusting the T c value downward relative to room temperature, which is generally associated with the substantial increase of ε r . 12,14,15 As a result, many previously reported piezoelectric material systems usually exhibit either high T c but extremely low d 33 , or relatively large d 33 but low T c .…”

Transparent high-performance piezoceramics through pressureless sintering

“…Previous research has demonstrated the impressive properties of ceramics produced using hot-press sintering methods. For example, Yan et al [42] reported Eu-doped PMN-PT ceramics with a high piezoelectric coefficient of 1400 pC/N and 68% in the NIR region. Similarly, Qin et al [43] prepared Pr 3+ -doped PMN-PT ceramics with even higher transparency at 900 nm, reaching 68%, in addition to a piezoelectric coefficient of 465 pC/N.…”