Srimannarayana Kola, K. V. Ramesh, D. Venkatesh, G. V. Swamy, T. Durga Rao, Md Haleema
{"title":"Dielectric Diffusive and Relaxor Behaviour of SrO Substituted BCZT Ceramics","authors":"Srimannarayana Kola, K. V. Ramesh, D. Venkatesh, G. V. Swamy, T. Durga Rao, Md Haleema","doi":"10.1134/S1063783424602054","DOIUrl":null,"url":null,"abstract":"<p>Ba<sub>0.85</sub>Ca<sub>0.15</sub>Zr<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>3</sub> (BCZT) ceramics possess exceptional dielectric, ferroelectric, and piezoelectric properties, making them a compelling choice for manufacturing microelectronic devices. The BCZT ceramic materials were replaced with Ba<sub>0.85</sub>Ca<sub>0.15–<i>x</i></sub>Sr<sub><i>x</i></sub>Zr<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>3</sub>. The samples were calcinated at 1150°C for 4 h in a conventional high-temperature muffle furnace. The powders were then sintered in a microwave furnace at 1450°. The cubic structure of the material at room temperature was confirmed using Rietveld X-ray diffraction. Dielectric studies, which were temperature and frequency dependent, showed that the dielectric constant and dielectric loss increased with SrO substitution upto <i>x</i> = 0.10. Relaxor behavior was observed in all Sr-substituted samples. The degree of diffuseness was calculated using the modified Curie–Weiss law.</p>","PeriodicalId":731,"journal":{"name":"Physics of the Solid State","volume":"67 2","pages":"140 - 147"},"PeriodicalIF":0.9000,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of the Solid State","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063783424602054","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
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Abstract
Ba0.85Ca0.15Zr0.9Ti0.1O3 (BCZT) ceramics possess exceptional dielectric, ferroelectric, and piezoelectric properties, making them a compelling choice for manufacturing microelectronic devices. The BCZT ceramic materials were replaced with Ba0.85Ca0.15–xSrxZr0.9Ti0.1O3. The samples were calcinated at 1150°C for 4 h in a conventional high-temperature muffle furnace. The powders were then sintered in a microwave furnace at 1450°. The cubic structure of the material at room temperature was confirmed using Rietveld X-ray diffraction. Dielectric studies, which were temperature and frequency dependent, showed that the dielectric constant and dielectric loss increased with SrO substitution upto x = 0.10. Relaxor behavior was observed in all Sr-substituted samples. The degree of diffuseness was calculated using the modified Curie–Weiss law.
期刊介绍：
Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.
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