Zobrazeno 1 - 10
of 15
pro vyhledávání: '"G. K. Savchuk"'
Autor:
A. K. Letko, G. K. Savchuk
Publikováno v:
Inorganic Materials. 53:226-232
We have studied how the duration of ultrasonic processing of presynthesized lead zirconate titanate powders influences the crystal structure and physical properties of ceramics produced from such powders. The effect of the ultrasonication time on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::969c45902e8ea916c40fc69f9593a5e6
https://doi.org/10.1134/s0020168517020121
https://doi.org/10.1134/s0020168517020121
Autor:
A. K. Letko, G. K. Savchuk
Publikováno v:
Inorganic Materials. 49:733-739
We have studied the dielectric properties of microwave ceramic materials in the binary system Zn2TiO4-TiO2 and examined the effect of doping with Sn2+, Sb3+, Bi3+, and Mg2+ on the dielectric properties and microstructure of the ceramics. The doped Zn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f57fe7ed9b88b3570269bca8f8b06c2
https://doi.org/10.1134/s0020168513070169
https://doi.org/10.1134/s0020168513070169
Publikováno v:
Inorganic Materials. 49:632-637
Celsian ceramics based on hexagonal BaAl2Si2O8 have been prepared through synthesis at 1450°C followed by firing at 1500°C. The unit-cell parameters of BaAl2Si2O8 and principal bond distances in its structure have been determined by the Rietveld me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b29ea22014749f41b9794f728d6a1b42
https://doi.org/10.1134/s0020168513060101
https://doi.org/10.1134/s0020168513060101
Autor:
G. K. Savchuk, A. I. Akimov
Publikováno v:
Crystallography Reports. 57:892-897
The relationship between the superconducting transition temperature Tc and the crystal-structure parameters of high-temperature superconducting ceramic samples of the Tl2201 phase, which were prepared using high-pressure cold pressing, has been deter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::056e924193d8ab182a44b4fff2fc4573
https://doi.org/10.1134/s1063774512070024
https://doi.org/10.1134/s1063774512070024
Publikováno v:
Inorganic Materials. 47:1227-1232
This paper describes the preparation and properties of (Na0.5Bi0.5)1 − x A x TiO3 (A = Sr, Cd) lead-free ferroelectric ceramics. The (0.63–0.66)Na0.5Bi0.5TiO3 · (0.37–0.34)Sr0.7Bi0.2TiO3 ceramics are shown to have the best dielectric and piezo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a4c5cb4447a67acf9a7ea62060e284a
https://doi.org/10.1134/s0020168511100013
https://doi.org/10.1134/s0020168511100013
Autor:
A. I. Akimov, G. K. Savchuk
Publikováno v:
Inorganic Materials. 44:1244-1250
The principal bond distances in the structure of tetragonal PbMg1/3Nb2/3O3-PbTiO3 (PMN-PT) solid solutions have been determined by the Rietveld method. The ferroelectric state of (PbMg1/3Nb2/3O3)0.62(PbTiO3)0.38 samples is shown to be governed by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebf120292197cbb14dfc19ee1d38f293
https://doi.org/10.1134/s0020168508110198
https://doi.org/10.1134/s0020168508110198
Autor:
G. K. Savchuk, A. I. Akimov
Publikováno v:
Crystallography Reports. 50:S136-S140
A simple method for the synthesis of the Ag5Pb2O6 compound in argon atmosphere is suggested. The optimum conditions for the synthesis of the stoichiometric Ag5Pb2O6 compound are determined on the basis of thermogravimetric and DTA data. It is shown t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::790a7c48af6513f067a1e148020907f0
https://doi.org/10.1134/1.2133989
https://doi.org/10.1134/1.2133989
Autor:
G. K. Savchuk, A. I. Akimov
Publikováno v:
Inorganic Materials. 41:542-548
A new process for Ag5Pb2O6 synthesis is described. Ag5Pb2O6-Ag ceramics are prepared and characterized using x-ray diffraction, thermal analysis, and scanning electron microscopy. The room-temperature resistivity of Ag5Pb2O6 ceramics is 0.35–0.37 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad7b04cb8450b3ffa34fe87481e7cb2
https://doi.org/10.1007/s10789-005-0165-2
https://doi.org/10.1007/s10789-005-0165-2
Autor:
G. K. Savchuk, A. I. Akimov
Publikováno v:
Inorganic Materials. 40:716-720
The conditions of Bi2Ti4O11 formation are studied. It is shown that the process is diffusion-controlled and depends significantly on the heating rate. The optimal conditions for producing Bi2Ti4O11 ceramics are determined. Cold pressing of Bi2Ti4O11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32c07838ea6cfd62f7233a837520437d
https://doi.org/10.1023/b:inma.0000034770.04111.12
https://doi.org/10.1023/b:inma.0000034770.04111.12
Publikováno v:
Journal of Applied Spectroscopy. 70:498-502
The IR spectra of samples of solid solutions of lead zirconate-titanate with a rhombohedral and a tetragonal structures have been investigated. The frequencies of the vibrational modes of pairs or groups of atoms bound together have been determined i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c19d23a50b15de28f7f5ec3de0d7f73a
https://doi.org/10.1023/a:1026129927034
https://doi.org/10.1023/a:1026129927034