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The kinetics of topochemical and morphological conversion of platelet-shaped Na3.5Bi2.5Nb5O18, PbBi4Ti4O15, and BaBi4Ti4O15 Aurivillius phases to NaNbO3, PbTiO3, and BaTiO3 perovskites were studied.… (More)
- Florian Bouville, Etienne Portuguez, +5 authors Sylvain Deville
- 2014
We demonstrate a facile method to produce crystallographically textured, macroporous materials using a combination of modified ice templating and templated grain growth (TGG). The process is… (More)
[0001] textured alumina ceramics with a fine grain size were fabricated between 1400°C and 1600°C via templated grain growth (TGG) using fine alumina platelets (~0.6 and ~3 μm diameter) aligned by… (More)
Abstract Lead-free piezoelectric ceramics with the composition of (K 0.5 Na 0.5 )NbO 3 (KNN) and 0.995(K 0.5 Na 0.5 )NbO 3 –0.005AETiO 3 (AE = Mg, Ca, Sr, Ba) were successfully prepared by… (More)
- Yingchun Liu, Yunfei Chang, +6 authors Wenwu Cao
- ACS applied materials & interfaces
- 2017
Both low strain hysteresis and high piezoelectric performance are required for practical applications in precisely controlled piezoelectric devices and systems. Unfortunately, enhanced piezoelectric… (More)
⟨001⟩-oriented (K0.5Na0.5)(Nb0.97Sb0.03)O3 (KNNS) ceramics with a narrow orientation distribution (full width at half maximum=7.0°) were produced by templated grain growth using NaNbO3 templates.… (More)
Abstract Large platelet NaNbO 3 (NN) seed crystals have been successfully synthesized from bismuth layer-structured ferroelectric Bi 2.5 Na 3.5 Nb 5 O 18 (BNN) precursor by topochemical microcrystal… (More)
Lead-free (K0.44Na0.52Li0.04) (Nb0.96−xTaxSb0.04)O3 piezoelectric ceramics were prepared by the conventional solid-state sintering method. The grain growth of the ceramics was inhibited and the… (More)
The interface of ZnTe/Si(211) grown by molecular beam epitaxy was investigated by high-resolution transmission electron microscopy. Several types of defects such as misfit dislocations, stacking… (More)
In reactive templated grain growth (RTGG), oriented template crystals are used to seed both phase formation and crystallographic orientation in textured ceramics. This mechanism differs substantially… (More)