Autor: Surowiak, Z. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: An Influence of the Synthesis Conditions οn the PFN Ceramics Properties
Autorzy:: Bochenek, D.
Surowiak, Z.
Tematy:: 77.80.-e
68.37.Hk
77.80.Bh
77.22.Gm; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1795786.pdf Link otwiera się w nowym oknie
Opis:: In the work tests of the influence of the technological conditions on the basic applied properties of the $Pb(Fe_{0.5}Nb_{0.5})O_3$ ceramics were carried out. The $Pb(Fe_{0.5}Nb_{0.5})O_3$ specimens were obtained by a two-stage method of synthesizing (the niobite method), a technique of the powder mixture calcinations, changing a temperature range of the iron-niobate $(FeNbO_{4})$, whereas compacting was conducted by free sintering.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Multicomponent ceramic materials on the basis of PZT for the production of piezoelectric resonators
Autorzy:: Bochenek, D.
Surowiak, Z.
Gavrilyachenko, S. V.
Kupriyanov, M. F.
Tematy:: PZT
piezoelectric transducers
resonance frequency
thermal stability; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/176898.pdf Link otwiera się w nowym oknie
Opis:: Investigations on the influence of the PbTiO₃ content on the crystalline and domain structure of PZT-based four-component solid solutions have been performed. It has been shown that there is a close relation between the structure and temperature stability of the resonance frequency (f_r) of the fabricated piezoceramic transducers. Better and more stable results have been obtained by doping and modifying the basic chemical composition obtaining Pb(Zr_1-x Ti_x)O₃. The compositions with minimal Δ f_r / f_r, within the temperature range T = 213–358 K (in relation to room temperature T_r = 293 K), exhibited (i) the smallest internal friction (Q^-1_m), (ii) the highest mechanical quality (Q_m), (iii) high values of spontaneous deformation of the elementary cell (δ_T and δ_Re), (iv) the complex a-c-domain structure in the tetragonal phase (T) and the simple domain structure in the rhombohedral phase (Re). The practical result of the present work was the fabrication of piezoceramic electric band filters exhibiting Δ f_r / f_r < 0.2% and a high mechanical quality factor (Q_m = 3225).
Dostawca treści:: Biblioteka Nauki

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