Results 11 to 20 of about 34,475 (219)

Temperature Dependent Piezoelectric Properties of Lead-Free (1-x)K0.6Na0.4NbO3–xBiFeO3 Ceramics [PDF]

open access: yes, 2020
(1-x)K0.4Na0.6NbO3–xBiFeO3 lead-free piezoelectric ceramics were successfully prepared in a single perovskite phase using the conventional solid-state synthesis.
Feteira, Antonio   +6 more
core   +3 more sources

Shocks exógenos y endeudamiento externo. Impacto sobre el crecimiento y la distribución en economías emergentes y en desarrollo

open access: yesEl Trimestre Económico, 2020
Antecedentes: Diversos modelos kaleckianos han planteado la interacción entre crecimiento económico y distribución funcional del ingreso en economías abiertas. Esta clase de modelos suele omitir los efectos ejercidos por el nivel de endeudamiento externo
Pablo G. Bortz   +2 more
doaj   +1 more source

Derivations and Centroids of Four Dimensional Associative Algebras [PDF]

open access: yes, 2016
In this paper, we focus on derivations and centroids of four dimensional associative algebras. Using an existing classification result of low dimensional associative algebras, we describe the derivations and centroids of four dimensional associative ...
Abdulkareem, A. O.   +2 more
core   +1 more source

Correlation between electric-field-induced phase transition and piezoelectricity in lead zirconate titanate films [PDF]

open access: yes, 2014
We observed that electric field induces phase transition from tetragonal to rhombohedral in polycrystalline morphotropic lead zirconate titanate (PZT) films, as reported in 2011 for bulk PZT.
Defay, E   +5 more
core   +3 more sources

Do financial inclusion and income inequality matter for human capital? Evidence from sub-Saharan economies

open access: yesBorsa Istanbul Review, 2023
Sub-Saharan African (SSA) countries are struggling as they have a lower level of human capital than developed countries. These economies are also trying to develop their financial sector with improved products and services.
Wenjing Huang   +4 more
doaj   +1 more source

Accurate measurement of the piezoelectric coefficient of thin films by eliminating the substrate bending effect using spatial scanning laser vibrometry [PDF]

open access: yes, 2010
One of the major difficulties in measuring the piezoelectric coefficient d(33,f) for thin films is the elimination of the contribution from substrate bending.
Huang, Zhaorong, Leighton, Glenn J. T.
core   +1 more source

Synthesis of high density sub-10 µm (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3-xCeO2 lead-free ceramics using a two-step sintering technique

open access: yesJournal of Asian Ceramic Societies, 2019
(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3-xCeO2, (BCZTCe) lead-free piezoelectric ceramics were processed conventionally using a two-step sintering technique.
Vijay Bijalwan, Pavel Tofel
doaj   +1 more source

Lead Free Multilayer Piezoelectric Actuators by Economically New Approach

open access: yesFrontiers in Materials, 2020
The replacement of lead zirconate titanate ceramics (PZTs), with a lead-oxide (PbO)-free alternative is the subject of intense investigation worldwide. In this research, a cheap reliable methodology for the fabrication of multilayers (MLs) of lead-free ...
Fayaz Hussain   +7 more
doaj   +1 more source

Enhanced process stability for the low temperature sputter deposition of aluminium nitride thin films

open access: yesMaterials Research Express, 2018
MEMS (micro electro-mechanical systems) operated in resonance and excited piezoelectrically are nowadays used for a broad range of different application scenarios.
M Fischeneder   +3 more
doaj   +1 more source

Effect of sintering on the piezoelectric properties and microstructure of lead free (Ba1-xCaxZr0.1Ti0.9O3) (x=0.065) ceramics [PDF]

open access: yesScience of Sintering, 2022
In this work, pellet samples of barium calcium zirconate titanate (Ba1-xCaxZr0.1Ti0.9O3, x=0.065) were prepared using solid state reaction route with double sintering. The structural and piezoelectric properties were measured.
Biswas Don, Sharma Prolay, Panwar N.S.
doaj   +1 more source

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