Zobrazeno 1 - 10
of 68
pro vyhledávání: '"E. Dimitriu"'
Autor:
F. Craciun, C.C. Negrila, E. Dimitriu, Bogdan Stefan Vasile, R. Birjega, R. Trusca, M. Cernea
Publikováno v:
Materials today (Amsterdam. Online) 18 (2020): 100350-1–100350-9. doi:10.1016/j.mtchem.2020.100350
info:cnr-pdr/source/autori:F. Craciun (1), E. Dimitriu (2), B.S. Vasile (3), C.C. Negrila (4), R. Trusca (3), R. Birjega (5), M. Cernea (4)/titolo:The enhancement mechanism of dielectric properties of Pb(Zr,Ti)O3 via (Mg2+,Sb3+) incorporation for supercapacitors/doi:10.1016%2Fj.mtchem.2020.100350/rivista:Materials today (Amsterdam. Online)/anno:2020/pagina_da:100350-1/pagina_a:100350-9/intervallo_pagine:100350-1–100350-9/volume:18
info:cnr-pdr/source/autori:F. Craciun (1), E. Dimitriu (2), B.S. Vasile (3), C.C. Negrila (4), R. Trusca (3), R. Birjega (5), M. Cernea (4)/titolo:The enhancement mechanism of dielectric properties of Pb(Zr,Ti)O3 via (Mg2+,Sb3+) incorporation for supercapacitors/doi:10.1016%2Fj.mtchem.2020.100350/rivista:Materials today (Amsterdam. Online)/anno:2020/pagina_da:100350-1/pagina_a:100350-9/intervallo_pagine:100350-1–100350-9/volume:18
Due to the extraordinary versatility of the perovskite structure in accommodating different dopant ions in its structure, in recent years a huge number of multifunctional perovskite materials have been developed. In this work we aim to obtain high te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ec6d26098af25f98560bf39d80ac8c
https://publications.cnr.it/doc/433514
https://publications.cnr.it/doc/433514
Publikováno v:
Journal of crystal growth 317 (2011): 16–22. doi:10.1016/j.jcrysgro.2010.11.029
info:cnr-pdr/source/autori:E. Dimitriu (a,b); R. Ramer (c); F. Craciun (d)/titolo:Mapping local defects in PbO-based piezoceramics/doi:10.1016%2Fj.jcrysgro.2010.11.029/rivista:Journal of crystal growth/anno:2011/pagina_da:16/pagina_a:22/intervallo_pagine:16–22/volume:317
info:cnr-pdr/source/autori:E. Dimitriu (a,b); R. Ramer (c); F. Craciun (d)/titolo:Mapping local defects in PbO-based piezoceramics/doi:10.1016%2Fj.jcrysgro.2010.11.029/rivista:Journal of crystal growth/anno:2011/pagina_da:16/pagina_a:22/intervallo_pagine:16–22/volume:317
The effect of impurities and defects of various types on the properties of ferroelectric perovskites remains a subject of great interest and is investigated by increasingly sophisticated experimental techniques. The microscopic structure and defect c
Publikováno v:
Russian Journal of Physical Chemistry A. 83:1537-1541
Present study extended the list of solvent and reagents appropriate to use for the colorimetric detection and semi quantitative analysis of various energetic compounds. The new reagents used in this study include DMSO as solvent/reagent, and tetramet
Publikováno v:
Ferroelectrics. 353:138-148
Scanning electron microscopy (SEM) and energy dispersive X-ray measurements reveal inhomogeneities in the distribution of elements in W-, Li-doped PZT materials with the composition PbZr 0.51 Ti 0.49 − 2.5x W 1.5x Li x O 3 (x = 0.03 and 0.05). Incr
Publikováno v:
Materials Science Forum. :188-192
The behaviour of the dielectric and piezoelectric properties of doped PZT ceramics, with variable lead content, has been investigated from –50oC to room temperature. The PZT materials were prepared by the oxide technique and samples were sintered a
Autor:
E. Dimitriu, A. Iuga
Publikováno v:
Materials Science Forum. :225-229
A PZT-type material, doped with niobium and lithium was prepared by the ceramic technique. The microstructure of the sintered material at 1280oC was performed by scanning electron microscopy (SEM), transmission electron microscopy and by X-ray diffra
Publikováno v:
Journal de Physique IV (Proceedings). 128:105-110
The variation with temperature of the dielectric and piezoelectric properties and dielectric properties aging of ferroelectric ceramics with composition Pb 0.95 Sr 0.05 Mg 0.042 Sb 0.083 Ti 0.45 Zr 0.425 O 3 are presented. Dielectric measurements evi
Publikováno v:
Journal de Physique IV (Proceedings). 128:139-143
Piezoceramics with composition 0.46 Pb(Zr 0.3 Ti 0.7 )O 3 - 0.53 Pb(Ni 1/3 Nb 2/3 )O 3 have been synthesized by solid-state reaction at different temperatures. The density varied between 8.05-8.1 g/cm 3 . The sintered samples have been chemically ele
Publikováno v:
Ferroelectrics. 319:3-10
A series of microstructural experiments were performed to study complex doped PT-type ceramics from micrometer to nanometer scale. Grain size and shape, size and number of pores were determined from the scanning electron micrographs. Inside the grain
Publikováno v:
Journal of the European Ceramic Society. 25:2401-2404
The goal of this work is to prepare doped PZT-type materials with improved radial piezoelectric properties. Ceramic materials were obtained by solid-state reaction at different sintering temperatures. SAED, bright field TEM and HRTEM methods were use