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Large strain improvement of lead-free (1−x) Bi0.5Na0.42K0.08Zr0.02Ti0.98O3–xBa(Nb0.5Fe0.5)O3 piezoelectric ceramics
รศ.ดร.ศุภลักษณ์ มะโนธรรม  |  -  
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Large strain improvement of lead-free (1−x) Bi0.5Na0.42K0.08Zr0.02Ti0.98O3–xBa(Nb0.5Fe0.5)O3 piezoelectric ceramics
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Collection RMUTK Research Repository (RMUTK IR)
วารสารวิชาการ — e-Journal Articles
ID RMUTK Digital RMUTK000169
Title Large strain improvement of lead-free (1−x) Bi0.5Na0.42K0.08Zr0.02Ti0.98O3–xBa(Nb0.5Fe0.5)O3 piezoelectric ceramics
Alternative title Large strain improvement of lead-free (1−x) Bi0.5Na0.42K0.08Zr0.02Ti0.98O3–xBa(Nb0.5Fe0.5)O3 piezoelectric ceramics
Authors รศ.ดร.ศุภลักษณ์ มะโนธรรม ผู้แต่งหลัก
รศ.ดร.พิชิตชัย บุตรน้อย Corresponding
Faculty คณะครุศาสตร์อุตสาหกรรม
Journal Title Journal of Materials Science
ISSN 573-4803
Volume / Issue / Pages Vol.59 | No.13 | pp.5330-5344
Published 2024-03-28
Year 2567
Level ระดับนานาชาติ (SCOPUS)
Quartile Q1
Abstract -
Abstract (EN) In the past decade, great focus has been devoted to the possibility of employing electric felds to induce extremely large strains in Pb-free materials. In the present investigation, lead-free 1−x(Bi0.5Na0.42K0.08)Zr0.02Ti0.98O3–xBa(Nb0.5Fe0.5)O3 or (1−x)BNKZTO–xBNFO ceramics where x = 0, 0.005, 0.010, or 0.015 were prepared via a solid-state reaction. An enhanced strain was achieved by doping a suitable amount of BNFO into BNKZTO, resulting in phase formation and microstructural changes that afect electrical properties, such as dielectric, ferroelectric, and electric feld-induced strain (S‒E) behavior. X-ray difraction analysis revealed both rhombohedral (R) and tetragonal (T) phases in all of the analyzed ceramic samples. The (1–x)BNKZTO-xBNFO binary system ceramics show remarkable strain coefcients at ambient temperature, exhibiting a maximum strain of 0.42% when given an electric feld of 60 kV/cm and a normalized strain coefcient (d*33 = Smax/Emax = 700 pm/V).
Keywords (TH) -
Keywords (EN) Energy storage density; ultra-strain; BNFO doped; lead-free ceramics
Access Level Open Access (เปิดสาธารณะ)
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https://link.springer.com/article/10.1007/s10853-024-09482-y
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