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Published in 2019 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-019-02618-w
Abstract: In order to achieve the long-term objective of high-performance KNN-based ceramics, BiMnO 3 -modified lead-free KNN-based ceramics were fabricated by conventional solid-state method in this work. The R–O–T multi-phases coexistence and the absence of Sb…
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Keywords:
based ceramics;
inter granular;
performance knn;
performance ... See more keywords
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Published in 2019 at "International Journal of Machine Learning and Cybernetics"
DOI: 10.1007/s13042-017-0720-6
Abstract: Imbalanced data classification is often met in our real life. In this paper, a novel k-nearest neighbor (KNN)-based maximum margin and minimum volume hyper-sphere machine (KNN-M3VHM) is presented for the imbalanced data classification. The basic…
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Keywords:
machine;
imbalanced data;
hyper;
hyper sphere ... See more keywords
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Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.11.009
Abstract: Abstract Potassium-sodium niobate (K1-xNaxNbO3, referred to as KNN) solid solutions, which are an important type of lead-free piezoelectric materials possessing environmentally friendly features, good piezoelectric response and high Curie temperature, have attracted considerable attention in…
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Keywords:
lead free;
full characterization;
material constants;
knn based ... See more keywords
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Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.03.190
Abstract: Abstract The effects of sintering additives on photostriction properties have been rarely reported and the polarization effect of KNN-based ceramics on the photostriction characteristics remains uncertain. In the present work, a highly feasible approach has…
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Keywords:
mno2;
knn based;
polarization;
improving photostriction ... See more keywords
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Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.156245
Abstract: Abstract A new KNN-based lead-free piezoelectric material system of (1-x)K0.4Na0.6Nb0.96Sb0.04O3-x(Bi0.45Sm0.05)Na0.5ZrO3 (abbreviated as KNNS-xBSNZ, 0.00 ≤ x ≤ 0.06) is designed to obtain high performance to meet the requirement of next generation electronic devices. The relevant electric properties such as…
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Keywords:
lead free;
temperature;
based lead;
performance ... See more keywords
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Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2020.01.029
Abstract: Abstract Transparent ceramics with good electrical performance have recently drawn broad interest as promising multifunctional materials. Here, we report that a superior transmittance (T = 75 % at 2000 nm) and good piezoelectricity (d33 ∼…
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Keywords:
knn;
piezoelectricity transparency;
compromise piezoelectricity;
based ceramics ... See more keywords
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Published in 2017 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2017.06.044
Abstract: Abstract Two kinds of ternary KNN-based lead-free piezoceramics: (0.985- x )K 0.5 Na 0.5 NbO 3 -0.015Bi 0.5 Na 0.5 TiO 3 - x BiScO 3 and (0.985- y )K 0.5 Na 0.5 NbO 3…
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Keywords:
lead free;
phase;
based lead;
free piezoceramics ... See more keywords
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Published in 2021 at "Nano Energy"
DOI: 10.1016/j.nanoen.2021.106133
Abstract: Abstract In recent times, the triboelectric and piezoelectric effects have garnered significant attention towards developing advanced material composites for energy harvesting and sensory applications. In this work, potassium sodium niobate (KNN) based energy films (EF)…
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Keywords:
piezo triboelectric;
knn based;
energy films;
output ... See more keywords
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Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c03160
Abstract: An easy approach is suggested to obtain excellent piezoelectric performances in potassium sodium niobate (KNN)-based ceramics simultaneously with low dielectric loss (tanδ), high Curie temperature (TC), and electromechanical coupling factor (kp). Herein, a KNN-based ceramics…
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Keywords:
nonstoichiometric nb5;
knn based;
based ceramics;
electrical properties ... See more keywords
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Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c18015
Abstract: As the most promising lead-free piezoelectric ceramics to replace lead zirconate titanate (PZT) ceramics, potassium sodium niobate (KNN) ceramics have been widely studied for their application prospects in various electronic devices. Increasing Qm while maintaining…
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Keywords:
lead free;
knn based;
hardening effect;
ceramics cuo ... See more keywords
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Published in 2021 at "Materials"
DOI: 10.3390/ma14154337
Abstract: Due to the ever-increasing limitations of the use of lead-based materials, the manufacturing of lead-free piezoceramics with competitive piezoelectric properties and established nontoxicity is considered a priority for the scientific and industrial community. In this…
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Keywords:
processing optimization;
lead free;
optimization toxicological;
free piezoceramics ... See more keywords