AI Chat Paper
Note: Please note that the following content is generated by AMiner AI. SciOpen does not take any responsibility related to this content.
{{lang === 'zh_CN' ? '文章概述' : 'Summary'}}
{{lang === 'en_US' ? '中' : 'Eng'}}
Chat more with AI
Powered by AMiner. Clicking this button will take you away from SciOpen.
Home Journal of Advanced Ceramics Article
PDF (1,022.4 KB)
Cite
EndNote(RIS) BibTeX
Collect
Submit Manuscript AI Chat Paper
Show Outline
Outline
Show full outline
Hide outline
Outline
Show full outline
Hide outline
Research Article | Open Access

A novel Na1−xKxTaO3 perovskite microwave dielectric ceramic with high permittivity and high positive temperature coefficient

Liu Tanga,b, Hongcheng Yangb,c, Enzhu Lia,b( ), Chaowei Zhonga,b( )
State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 611731, China
School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
Show Author Information

Graphical Abstract

Abstract

A novel Na1−xKxTaO3 (x = 0, 0.025, 0.05, 0.075, 0.1, and 0.15) ceramic with high permittivity and high positive temperature coefficient was synthesized via the conventional solid-state method. All samples were determined to be pure phase orthorhombic NaTaO3 structure of space group Pmcn, and larger grain and lower porosity were observed after adding an appropriate amount of K+ ions. The Q × f value is majored by the packing fraction and grain size, while the value of τf is influenced by Ta–O bond valence. The Na0.95K0.05TaO3 ceramic possesses excellent dielectric properties of εr = 164.29, Q × f = 9091 GHz (f = 3.15 GHz), tanδ = 3.46×10–4, τf = +809.52 ppm/℃, sintered at 1550 ℃. Compared with NaTaO3 ceramics, the Na1−xKxTaO3 ceramics prepared in this study demonstrate higher dielectric constants and higher positive temperature coefficients, which are promising for device miniaturization and τf compensators.

Keywords

Na1−xKxTaO3 ceramicshigh permittivityhigh positive temperature coefficientperovskite

Electronic Supplementary Material

Download File(s)
JAC0807_ESM.pdf (416.5 KB)

References

[1]
Zhou D, Pang LX, Wang DW, et al. High permittivity and low loss microwave dielectrics suitable for 5G resonators and low temperature co-fired ceramic architecture. J Mater Chem C 2017, 5: 10094–10098.
Crossref Google Scholar
[2]
Yang H, Zhang S, Yang H, et al. The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams. J Adv Ceram 2021, 10: 885–932.
Crossref Google Scholar
[3]
Wang T, Li B. High-mobility transport symmetry and effect of strain on electronic and optical properties in few-layer blue phosphorus. Comput Mater Sci 2023, 224: 112177.
Crossref Google Scholar
[4]
Sebastian MT, Ubic R, Jantunen H. Low-loss dielectric ceramic materials and their properties. Int Mater Rev 2015, 60: 392–412.
Crossref Google Scholar
[5]
Xiao M, Lou J, Zhou ZQ, et al. Crystal structure and microwave dielectric properties of Ta5+ substituted MgZrNb2O8 ceramics. Ceram Int 2017, 43: 15567–15572.
Crossref Google Scholar
[6]
Wu MJ, Zhang YC, Xiang MQ. Synthesis, characterization and dielectric properties of a novel temperature stable (1−x)CoTiNb2O8−xZnNb2O6 ceramic. J Adv Ceram 2019, 8: 228–237.
Crossref Google Scholar
[7]
Guo WJ, Ma ZY, Luo Y, et al. Structure, defects, and microwave dielectric properties of Al-doped and Al/Nd co-doped Ba4Nd9.33Ti18O54 ceramics. J Adv Ceram 2022, 11: 629–640.
Crossref Google Scholar
[8]
Takahashi H, Baba Y, Ezaki K, et al. Dielectric characteristics of (A1+ 1/2 ·A3+ 1/2)TiO3 ceramics at microwave frequencies. Jpn J Appl Phys 1991, 30: 2339.
Crossref Google Scholar
[9]
Mercurio JP, Manier M, Frit B. Dielectric properties of ceramics within the BaO–Ln2O3–TiO2 system. Ferroelectrics 1992, 127: 35–40.
Crossref Google Scholar
[10]
Ezaki K, Baba Y, Takahashi H, et al. Microwave dielectric properties of CaO–Li2O–Ln2O3–TiO2 ceramics. Jpn J Appl Phys 1993, 32: 4319.
Crossref Google Scholar
[11]
Kato J, Kagata H, Nishimoto K. Dielectric properties of lead alkaline-earth zirconate at microwave frequencies. Jpn J Appl Phys 1991, 30: 2343.
Crossref Google Scholar
[12]
Shi F, Fu GG, Xiao EC, et al. Lattice vibrational characteristics and dielectric properties of pure phase CaTiO3 ceramic. J Mater Sci Mater Electron 2020, 31: 18070–18076.
Crossref Google Scholar
[13]
Yang SW, Liang BL, Liu CH, et al. Microwave sintering and microwave dielectric properties of (1−x)Ca0.61La0.26TiO3–xNd(Mg0.5Ti0.5)O3 ceramics. Materials 2021, 14: 438.
Crossref Google Scholar
[14]
Tkach A, Almeida A, Moreira JA, et al. Low-temperature dielectric response of NaTaO3 ceramics and films. Appl Phys Lett 2012, 100: 192909.
Crossref Google Scholar
[15]
Zhou XF, Qi H, Yan ZN, et al. Superior thermal stability of high energy density and power density in domain-engineered Bi0.5Na0.5TiO3–NaTaO3 relaxor ferroelectrics. ACS Appl Mater Interfaces 2019, 11: 43107–43115.
Crossref Google Scholar
[16]
Wang KG, Zhou HF, Luan XW, et al. NaTaO3 microwave dielectric ceramic a with high relative permittivity and as an excellent compensator for the temperature coefficient of resonant frequency. Ceram Int 2021, 47: 121–129.
Crossref Google Scholar
[17]
Grabowska E. Selected perovskite oxides: Characterization, preparation and photocatalytic properties—A review. Appl Catal B Environ 2016, 186: 97–126.
Crossref Google Scholar
[18]
Shannon RD. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst Sect A 1976, 32: 751–767.
Crossref Google Scholar
[19]
Sanderson RT. Electronegativity and bond energy. J Am Chem Soc 1983, 105: 2259–2261.
Crossref Google Scholar
[20]
Toby BH. EXPGUI, a graphical user interface for GSAS. J Appl Cryst 2001, 34: 210–213.
Crossref Google Scholar
[21]
Kroumova E, Aroyo MI, Perez-Mato JM, et al. Bilbao crystallographic server: Useful databases and tools for phase-transition studies. Phase Transitions 2003, 76: 155–170.
Crossref Google Scholar
[22]
Zhang X, Liu C, Shi L, et al. Ti4+ modified MgZrNb2O8 microwave dielectric ceramics with an ultra-high quality factor. J Am Ceram Soc 2021, 104: 6054–6063.
Crossref Google Scholar
[23]
Dahlborg MÅ, Svensson G, Sartori P. Structural changes in the system Zn(1–x)Cd(x)WO4, determined from single crystal data. Acta Chem Scand 1999, 53: 1103–1109.
Crossref Google Scholar
[24]
Ahtee M, Darlington CNW. Structures of NaTaO3 by neutron powder diffraction. Acta Crystallogr Sect B 1980, 36: 1007–1014.
Crossref Google Scholar
[25]
Wang G, Zhang DN, Li J, et al. Structural dependence of microwave dielectric performance of wolframite structured Mg1–xCaxZrNb2O8 ceramics: Crystal structure, microstructure evolution, Raman analysis and chemical bond theory. J Eur Ceram Soc 2021, 41: 3445–3451.
Crossref Google Scholar
[26]
Zhou HF, Tan XH, Huang J, et al. Phase evolution, microstructure and microwave dielectric properties of 2Li2O–AO–3WO3 (A = Mg, Zn) composite ceramics. J Mater Sci Mater Electron 2017, 28: 11439–11445.
Crossref Google Scholar
[27]
Huang ZP, Li LX, Qiao JL. Trace additive enhances microwave dielectric performance significantly to facilitate 5G communications. J Am Ceram Soc 2022, 105: 7426–7437.
Crossref Google Scholar
[28]
Zhang Q, Su H, Tang XL, et al. Effects of Cu2+ substitution on bond characteristics, Raman spectra, and microwave dielectric properties of Li2Mg0.6Zn0.4SiO4 ceramics. J Eur Ceram Soc 2021, 41: 3432–3437.
Crossref Google Scholar
[29]
Zhang Q, Tang XL, Li YX, et al. Influence of substituting Na+ for Mg2+ on the crystal structure and microwave dielectric properties of Mg1–xNa2xWO4 ceramics. J Eur Ceram Soc 2020, 40: 4503–4508.
Crossref Google Scholar
[30]
Bosman AJ, Havinga EE. Temperature dependence of dielectric constants of cubic ionic compounds. Phys Rev 1963, 129: 1593–1600.
Crossref Google Scholar
[31]
Zhou D, Randall CA, Pang LX, et al. Microwave dielectric properties of Li2WO4 ceramic with ultra-low sintering temperature. J Am Ceram Soc 2011, 94: 348–350.
Crossref Google Scholar
[32]
Shannon RD. Dielectric polarizabilities of ions in oxides and fluorides. J Appl Phys 1993, 73: 348–366.
Crossref Google Scholar
[33]
Zhou D, Pang LX, Xie HD, et al. Crystal structure and microwave dielectric properties of an ultralow-temperature-fired (AgBi)0.5WO4 ceramic. Eur J Inorg Chem 2014, 2014: 296–301.
Crossref Google Scholar
[34]
Wang KG, Zhou HF, Zhou XJ, et al. High relative permittivity Bi4B2+xO9+3x/2 (x = 1.5, 2, 2.5, 3) microwave ceramics for ULTCC technology. Ceram Int 2020, 46: 13841–13847.
Crossref Google Scholar
[35]
Liu KY, Gao PX, Chen XL, et al. Microwave dielectric properties of glass free low temperature co-fired LixNa1−xY(MoO4)2 (x = 0–0.4) ceramics with temperature stability. J Alloys Compd 2023, 947: 169518.
Crossref Google Scholar
[36]
Kim ES, Chun BS, Freer R, et al. Effects of packing fraction and bond valence on microwave dielectric properties of A2+B6+O4 (A2+: Ca, Pb, Ba; B6+: Mo, W) ceramics. J Eur Ceram Soc 2010, 30: 1731–1736.
Crossref Google Scholar
[37]
Zhang X, Fang ZX, Jiang YH, et al. Microwave dielectric properties of a low firing and temperature stable lithium magnesium tungstate (Li4MgWO6) ceramic with a rock-salt variant structure. J Eur Ceram Soc 2021, 41: 171–178.
Crossref Google Scholar
[38]
Liu B, Liu XQ, Chen XM. Sr2LaAlTiO7: A new Ruddlesden–Popper compound with excellent microwave dielectric properties. J Mater Chem C 2016, 4: 1720–1726.
Crossref Google Scholar
[39]
Zhang BW, Li LX, Luo WJ. Oxygen vacancy regulation and its high frequency response mechanism in microwave ceramics. J Mater Chem C 2018, 6: 11023–11034.
Crossref Google Scholar
[40]
Yang HY, Li EZ, Duan SX, et al. Structure, microwave properties and low temperature sintering of Ta2O5 and Co2O3 codoped Zn0.5Ti0.5NbO4 ceramics. Mater Chem Phys 2017, 199: 43–53.
Crossref Google Scholar
[41]
Lee CT, Ou CC, Lin YC, et al. Structure and microwave dielectric property relations in (Ba1−xSrx)5Nb4O15 system. J Eur Ceram Soc 2007, 27: 2273–2280.
Crossref Google Scholar
[42]
Tian HR, Zheng JJ, Liu LT, et al. Structure characteristics and microwave dielectric properties of Pr2(Zr1−xTix)3(MoO4)9 solid solution ceramic with a stable temperature coefficient. J Mater Sci Technol 2022, 116: 121–129.
Crossref Google Scholar
[43]
Yang HY, Chai L, Liang GC, et al. Improved microwave dielectric properties of wolframite MgZrNb2O8 ceramics by (Ti1/2W1/2)5+ ionic co-substitution. J Mater Sci Mater Electron 2022, 33: 20846–20854.
Crossref Google Scholar
[44]
Wang G, Zhang DN, Huang X, et al. Crystal structure and enhanced microwave dielectric properties of Ta5+ substituted Li3Mg2NbO6 ceramics. J Am Ceram Soc 2020, 103: 214–223.
Crossref Google Scholar
[45]
Brese NE, O'Keeffe M. Bond-valence parameters for solids. Acta Crystallogr Sect B 1991, 47: 192–197.
Crossref Google Scholar
[46]
Yang HY, Li EZ, Yang YF, et al. Co2O3 substitution effects on the structure and microwave dielectric properties of low-firing (Zn0.9Mg0.1)TiO3 ceramics. Ceram Int 2018, 44: 5010–5016.
Crossref Google Scholar
Journal of Advanced Ceramics
Volume 12 Issue 11,
November 2023
Pages 2053-2061
DOI: 10.26599/JAC.2023.9220807
Cite this article:
Tang L, Yang H, Li E, et al. A novel Na1−xKxTaO3 perovskite microwave dielectric ceramic with high permittivity and high positive temperature coefficient. Journal of Advanced Ceramics, 2023, 12(11): 2053-2061. https://doi.org/10.26599/JAC.2023.9220807

1442

Views

235

Downloads

7

Crossref

6

Web of Science

8

Scopus

0

CSCD

Altmetrics
Received: 26 June 2023
Revised: 11 September 2023
Accepted: 12 September 2023
Published: 29 November 2023
© The Author(s) 2023.

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Return