• Journal of Inorganic Materials
  • Vol. 37, Issue 8, 903 (2022)
Tingting WEI, Huarui XU*, Guisheng ZHU, Shenfeng LONG, Xiuyun ZHANG, Yunyun ZHAO, Xupeng JIANG, Jinjie SONG, Ningjie GUO, and Yipeng GONG
Author Affiliations
  • Engineering Research Center of Electronic and Information Materials and Devices, Ministry of Education; Guangxi Key Laboratory of Information Materials; College of Materials Science and Engineering, Guilin University of Electronic Science and Technology, Guilin 541004, China
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    DOI: 10.15541/jim20220115 Cite this Article
    Tingting WEI, Huarui XU, Guisheng ZHU, Shenfeng LONG, Xiuyun ZHANG, Yunyun ZHAO, Xupeng JIANG, Jinjie SONG, Ningjie GUO, Yipeng GONG. Preparation and Properties of BaTiO3 Ceramics by Low Temperature Cold Sintering [J]. Journal of Inorganic Materials, 2022, 37(8): 903 Copy Citation Text show less
    XRD patterns of A1 and A2 powders
    1. XRD patterns of A1 and A2 powders
    PSD curves of powders (a)A1 and (b)A2
    2. PSD curves of powders (a)A1 and (b)A2
    SEM and TEM images of powders (a-c)A1 and (d-f)A2
    3. SEM and TEM images of powders (a-c)A1 and (d-f)A2
    Ba3d orbital photoelectron spectra of powders (a) A1 and (b) A2
    4. Ba3d orbital photoelectron spectra of powders (a) A1 and (b) A2
    XRD patterns of BaTiO3 ceramics
    5. XRD patterns of BaTiO3 ceramics
    Section SEM images of BaTiO3 ceramics
    6. Section SEM images of BaTiO3 ceramics
    Dielectric temperature spectra of ceramics
    7. Dielectric temperature spectra of ceramics
    Densification process of cold sintering of BaTiO3
    8. Densification process of cold sintering of BaTiO3
    PowderD10/nm D50/nm D90/nm
    A174103124
    A276107129
    Table 1. Size distribution of powders
    PowderBaTiOCBa/Ti
    A110.8810.8139.8138.451.0075
    A27.5213.4739.1439.870.5583
    Table 2. Relative atomic ratio of A1 and A2 powder surfaces
    ProcessRelative density εr (1 kHz) εr@Tc (1 kHz) Tc (1 kHz) tanδ
    A2-CPS 92.73%9301413128 ℃0.08
    A1-CPS-CS 95.78%27685813124 ℃0.06
    A2-CPS-CS 96.62%28367274123 ℃0.03
    Table 3. Relative density and dielectric properties of ceramics
    ProcessFlux (in mass)Temperature/PressureTime/hDensity/%εr(1 kHz) tanδ (1 kHz) Heat treatmentRef.
    CSP-CSBa(OH)2/TiO2soultion 180 ℃/430 MPa1-3 h9517600.04700-900 ℃/3 h[11]
    CSPNaOH-KOH300 ℃/520 MPa12 h9818000.04-[15]
    Surface coating/CSP-CSH2O, Ba(OH)2solution 220 ℃/500 MPa1 h9715500.02700-900 ℃/3 h[10]
    1 mol/L acetic acid/powder-CSP 20% Ba(OH)2∙8H2O 225 ℃/350 MPa1 h9514400.09-[16]
    1 mol/L acetic acid/powder-CSP 11% Sr(OH)2∙8H2O 275 ℃/350 MPa1 h9215000.08-[21]
    0.1 mol/L acetic acid/powder-CSP 10% Ba(OH)2∙8H2O 400 ℃/350 MPa1 h9628300.03600 ℃/0.5 hThiswork
    Table 4. Summary of cold sintering of BaTiO3 ceramics
    Tingting WEI, Huarui XU, Guisheng ZHU, Shenfeng LONG, Xiuyun ZHANG, Yunyun ZHAO, Xupeng JIANG, Jinjie SONG, Ningjie GUO, Yipeng GONG. Preparation and Properties of BaTiO3 Ceramics by Low Temperature Cold Sintering [J]. Journal of Inorganic Materials, 2022, 37(8): 903
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