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Bulletin of the Russian Academy of Sciences: Physics最新文献

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Microstructural Mechanisms of Electromechanical Losses in Dense and Porous Ferroelectrically Hard Piezoceramics 致密多孔铁电硬压电陶瓷机电损耗的微观结构机制
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701054
I. A. Shvetsov, N. A. Shvetsova, M. G. Konstantinova, M. A. Lugovaya, N. A. Kolpacheva
{"title":"Microstructural Mechanisms of Electromechanical Losses in Dense and Porous Ferroelectrically Hard Piezoceramics","authors":"I. A. Shvetsov,&nbsp;N. A. Shvetsova,&nbsp;M. G. Konstantinova,&nbsp;M. A. Lugovaya,&nbsp;N. A. Kolpacheva","doi":"10.1134/S1062873826701054","DOIUrl":"10.1134/S1062873826701054","url":null,"abstract":"<p>A comparative study was carried out on the frequency-dependent behavior of electromechanical losses and dispersion effects in dense and porous ferroelectrically hard piezoceramics based on lead zirconate titanate. The study revealed electromechanical dispersion regions characterized by anomalies in the frequency dependence of the complex electromechanical coupling coefficient in the porous piezoceramics.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1244 - 1251"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complex Electromechanical Characteristics and Microstructural Features of Ferroelectrically “Soft” Porous Piezoceramics 铁电“软”多孔压电陶瓷的复杂机电特性和微观结构特征
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701170
N. A. Shvetsova, I. A. Shvetsov, N. A. Kolpacheva, A. N. Rybyanets
{"title":"Complex Electromechanical Characteristics and Microstructural Features of Ferroelectrically “Soft” Porous Piezoceramics","authors":"N. A. Shvetsova,&nbsp;I. A. Shvetsov,&nbsp;N. A. Kolpacheva,&nbsp;A. N. Rybyanets","doi":"10.1134/S1062873826701170","DOIUrl":"10.1134/S1062873826701170","url":null,"abstract":"<p>We presented the results of a comparative study of the microstructure and complex electromechanical properties of ferroelectrically soft dense and porous piezoceramics with identical composition. Complete sets of complex constants for experimental samples were measured and analyzed. The microstructural and physical mechanisms determining the electromechanical properties of dense and porous piezoceramics were considered.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1390 - 1398"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of Electroelastic Properties of Ferroelectrically Hard Porous Piezoceramics 铁电硬多孔压电陶瓷的电弹性研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701042
A. N. Rybyanets, I. A. Shvetsov, E. I. Petrova, M. G. Konstantinova
{"title":"Study of Electroelastic Properties of Ferroelectrically Hard Porous Piezoceramics","authors":"A. N. Rybyanets,&nbsp;I. A. Shvetsov,&nbsp;E. I. Petrova,&nbsp;M. G. Konstantinova","doi":"10.1134/S1062873826701042","DOIUrl":"10.1134/S1062873826701042","url":null,"abstract":"<p>The microstructural features and complex parameters of ferroelectrically hard porous piezoceramics based on lead zirconate titanate were investigated. Elastic dispersion regions characterized by anomalies in the frequency dependences of the complex modulus of elasticity, speed of sound, and attenuation of elastic waves were identified. It was established that the dispersion of elastic properties in the porous piezoceramics is determined by the presence of a quasi-rod structure of the ceramic framework.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1237 - 1243"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dependence of the Properties of Temperature-Stable Ferroelectric Ceramics PZT-21 on Manufacturing Process Factors 温度稳定铁电陶瓷PZT-21性能与工艺因素的关系
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701315
M. A. Marakhovskiy, A. A. Panich
{"title":"Dependence of the Properties of Temperature-Stable Ferroelectric Ceramics PZT-21 on Manufacturing Process Factors","authors":"M. A. Marakhovskiy,&nbsp;A. A. Panich","doi":"10.1134/S1062873826701315","DOIUrl":"10.1134/S1062873826701315","url":null,"abstract":"<p>The possibility of adjusting the properties of ferroelectric temperature-stable ceramics without changing the chemical composition by changing the methods and modes of powder grinding, as well as the conditions of synthesis and sintering was investigated. The dependences of the microstructure, mechanical and electrophysical properties of ceramics on the methods and technological modes of sintering were established.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1309 - 1314"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dielectric Relaxation and Activation of Dielectric Constant near the Ferroelectric Phase Transition in BaTiO3 and Pb0.9Ba0.1(Zr0.5Ti0.5)O3 Ceramics BaTiO3和Pb0.9Ba0.1(Zr0.5Ti0.5)O3陶瓷中铁电相变附近介电常数的弛豫和活化
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701327
D. V. Kuzenko
{"title":"Dielectric Relaxation and Activation of Dielectric Constant near the Ferroelectric Phase Transition in BaTiO3 and Pb0.9Ba0.1(Zr0.5Ti0.5)O3 Ceramics","authors":"D. V. Kuzenko","doi":"10.1134/S1062873826701327","DOIUrl":"10.1134/S1062873826701327","url":null,"abstract":"<p>The dielectric properties of BaTiO<sub>3</sub> and Pb<sub>0.9</sub>Ba<sub>0.1</sub>(Zr<sub>0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub> ceramics were studied within the temperature range of 300–600 K at frequencies of 25 Hz–500 kHz. For both materials, dispersion of the dielectric response was observed, both below and above the Curie temperature. Analysis of the obtained results revealed that this dispersion is associated with thermal activation processes, the nature of which is discussed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1315 - 1320"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress Relief in Ferroelectric Solid Solutions Containing a Tetragonal Phase in a Morphotropic Region 相变区含四方相铁电固溶体的应力消除
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701339
V. Yu. Topolov
{"title":"Stress Relief in Ferroelectric Solid Solutions Containing a Tetragonal Phase in a Morphotropic Region","authors":"V. Yu. Topolov","doi":"10.1134/S1062873826701339","DOIUrl":"10.1134/S1062873826701339","url":null,"abstract":"<p>Heterophase and domain structures are studied in ferroelectric solid solutions with a perovskite-type structure and compositions from a morphotropic region. Conditions for complete stress relief at the tetragonal-orthorhombic phase coexistence are examined in lead-free solid solutions containing (Ba,Ca)(Ti,Zr)O<sub>3</sub>. An important role of the 90° domains of the tetragonal phase in achieving complete stress relief is shown. Tendencies of monodomainization of the morphotropic phases are discussed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1370 - 1375"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear Dielectric Response of (1 – x)[0.7PbZrO3–0.3(K0.5Bi0.5)TiО3]–xSrTiO3 Solid Solutions （1 - x）[0.7PbZrO3-0.3 (K0.5Bi0.5)TiО3] - xsrtio3固溶体的非线性介电响应
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701261
L. N. Korotkov, M. A. Pankova
{"title":"Nonlinear Dielectric Response of (1 – x)[0.7PbZrO3–0.3(K0.5Bi0.5)TiО3]–xSrTiO3 Solid Solutions","authors":"L. N. Korotkov,&nbsp;M. A. Pankova","doi":"10.1134/S1062873826701261","DOIUrl":"10.1134/S1062873826701261","url":null,"abstract":"<p>The nonlinear dielectric response (δε) of (1 – <i>x</i>)[0.7PbZrO<sub>3</sub>–0.3(K<sub>0.5</sub>Bi<sub>0.5</sub>)TiО<sub>3</sub>]–<i>x</i>SrTiO<sub>3</sub> solid solution samples was studied in an electric bias field (<i>E</i><sub>=</sub>) of 0–15 kV/cm in a temperature range of 200–550 K. It was found that the δε(<i>T</i>) dependences have an oscillating appearance, with alternating signs of δε. The shape of the δε(<i>T</i>) curves alters regularly depending on the concentration <i>x</i>. For a number of compositions, it was found that the maximum of the temperature dependence of the permittivity shifts in the low-temperature direction under the action of the bias field <i>E</i><sub>=</sub>.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1259 - 1263"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monte Carlo Study of the Shift of the Critical Temperature in Ferroelectric Films 铁电薄膜中临界温度位移的蒙特卡罗研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701248
O. S. Ergina, O. G. Maksimova
{"title":"Monte Carlo Study of the Shift of the Critical Temperature in Ferroelectric Films","authors":"O. S. Ergina,&nbsp;O. G. Maksimova","doi":"10.1134/S1062873826701248","DOIUrl":"10.1134/S1062873826701248","url":null,"abstract":"<p>The paper presents the results of computer simulation of the change in the phase transition temperature in a thin ferroelectric film using modified Ising-like models, considering the influence of the substrate and electrodes. It was shown that one of the dominant factors that most strongly affect the phase transition in such films is deformation caused by mismatches in the coefficients of thermal expansion of the film, its substrate, and the electrodes.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1212 - 1219"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flexoelectric Relaxation in Barium Titanate Ceramics 钛酸钡陶瓷的柔性电弛豫
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701212
V. G. Zalesskii, E. D. Obozova, K. V. Dyakonov, A. V. Khalipov
{"title":"Flexoelectric Relaxation in Barium Titanate Ceramics","authors":"V. G. Zalesskii,&nbsp;E. D. Obozova,&nbsp;K. V. Dyakonov,&nbsp;A. V. Khalipov","doi":"10.1134/S1062873826701212","DOIUrl":"10.1134/S1062873826701212","url":null,"abstract":"<p>Polarization response to inhomogeneous deformation was investigated in unpoled barium titanate ceramic plates. Here we report the measurements of the temperature dependence of the flexoelectric response and its relaxation.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1422 - 1426"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exitons in Crystals of Lithium Niobate Doped with Iron 掺铁铌酸锂晶体中的逸出子
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701091
R. M. Magomadov, M. E. Zobov, S. P. Kramynin, S. N. Tsebaev
{"title":"Exitons in Crystals of Lithium Niobate Doped with Iron","authors":"R. M. Magomadov,&nbsp;M. E. Zobov,&nbsp;S. P. Kramynin,&nbsp;S. N. Tsebaev","doi":"10.1134/S1062873826701091","DOIUrl":"10.1134/S1062873826701091","url":null,"abstract":"<p>The processes of formation and decay of excitons in a lithium niobate crystal with an iron impurity (0.06%) were investigated. Studies of thermally stimulated luminescence and thermally stimulated conductivity showed that the probability of exciton decay is higher than the probability of exciton formation and that the exciton spectrum in lithium niobate crystals with an iron impurity depends on the duration of illumination of the crystal.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1321 - 1326"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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