Journal of Inorganic Materials, Volume. 37, Issue 8, 903(2022)
Figures & Tables(12)
4. Ba3d orbital photoelectron spectra of powders (a) A1 and (b) A2
Table 1. Size distribution of powders
View tableView in ArticleTable 1. Size distribution of powders
Powder D10/nm D50/nm D90/nm A1 74 103 124 A2 76 107 129
Table 2. Relative atomic ratio of A1 and A2 powder surfaces
View tableView in ArticleTable 2. Relative atomic ratio of A1 and A2 powder surfaces
Powder Ba Ti O C Ba/Ti A1 10.88 10.81 39.81 38.45 1.0075 A2 7.52 13.47 39.14 39.87 0.5583
Table 3. Relative density and dielectric properties of ceramics
View tableView in ArticleTable 3. Relative density and dielectric properties of ceramics
Process Relative density εr (1 kHz) εr@Tc (1 kHz) Tc (1 kHz) tanδ A2-CPS 92.73% 930 1413 128 ℃ 0.08 A1-CPS-CS 95.78% 2768 5813 124 ℃ 0.06 A2-CPS-CS 96.62% 2836 7274 123 ℃ 0.03
Table 4. Summary of cold sintering of BaTiO3 ceramics
View tableView in ArticleTable 4. Summary of cold sintering of BaTiO3 ceramics
Process Flux (in mass) Temperature/Pressure Time/h Density/% εr(1 kHz) tanδ (1 kHz) Heat treatment Ref. CSP-CS Ba(OH)2/TiO2 soultion 180 ℃/430 MPa 1-3 h 95 1760 0.04 700-900 ℃/3 h [ 11 ]CSP NaOH-KOH 300 ℃/520 MPa 12 h 98 1800 0.04 - [ 15 ]Surface coating/CSP-CS H2O, Ba(OH)2 solution 220 ℃/500 MPa 1 h 97 1550 0.02 700-900 ℃/3 h [ 10 ]1 mol/L acetic acid/powder-CSP 20% Ba(OH)2∙8H2O 225 ℃/350 MPa 1 h 95 1440 0.09 - [ 16 ]1 mol/L acetic acid/powder-CSP 11% Sr(OH)2∙8H2O 275 ℃/350 MPa 1 h 92 1500 0.08 - [ 21 ]0.1 mol/L acetic acid/powder-CSP 10% Ba(OH)2∙8H2O 400 ℃/350 MPa 1 h 96 2830 0.03 600 ℃/0.5 h Thiswork
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Tingting WEI, Huarui XU, Guisheng ZHU, Shenfeng LONG, Xiuyun ZHANG, Yunyun ZHAO, Xupeng JIANG, Jinjie SONG, Ningjie GUO, Yipeng GONG.
Paper Information
Category: RESEARCH ARTICLE
Received: Mar. 4, 2022
Accepted: --
Published Online: Jan. 10, 2023
The Author Email: XU Huarui (huaruixu@guet.edu.cn)
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