Effect of BaO–B                         2                         O                         3                          composite sintering aid on sinterability and electrical property of BaZr                         0.85                         Y                         0.15                         O                         3-δ                          ceramic

Jiahui Jiao; Qiang Li; Yiheng Gu; Yali Luo; Lin Ge; Yifeng Zheng; Han Chen; Lucun Guo

doi:10.1016/j.ceramint.2019.04.062

Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic

Jiahui Jiao, Qiang Li, Yiheng Gu, Yali Luo, Lin Ge, Yifeng Zheng, Han Chen, Lucun Guo

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Yttrium-doped barium zirconate (BZY) has been extensively studied as a promising electrolyte material for protonic ceramic fuel cells. However, inferior sinterability is a major barrier in BZY development. In our research, the effect of BaO–B ₂ O ₃ composite sintering aid on the sintering behavior and electrical property of BaZr _0.85 Y _0.15 O _3-δ (BZY15) are examined. BaO–B ₂ O ₃ addition reduces the sintering temperature of BZY15 by approximately 200 °C via the liquid-phase sintering mechanism. The corresponding bulk and grain boundary conductivities are prominently improved (<3 wt% BaO–B ₂ O ₃ addition), whereas the further addition of sintering aid decreases the grain boundary conductivity. Notably, the scanning electron microscope (SEM) and electrochemical impedance spectroscopy (EIS) analyses suggest that the enhanced conductivity may be related to the temperature dependence of Ba evaporation.

Original language	English
Pages (from-to)	13679-13684
Number of pages	6
Journal	Ceramics International
Volume	45
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2019.04.062
State	Published - 1 Aug 2019

Keywords

Composite sintering aid
Electrical property
Electrolyte
Protonic ceramic fuel cells
Yttrium-doped barium zirconate

Access to Document

10.1016/j.ceramint.2019.04.062

Cite this

Jiao, J., Li, Q., Gu, Y., Luo, Y., Ge, L., Zheng, Y., Chen, H., & Guo, L. (2019). Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic Ceramics International, 45(11), 13679-13684. https://doi.org/10.1016/j.ceramint.2019.04.062

Jiao, Jiahui ; Li, Qiang ; Gu, Yiheng et al. / Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic In: Ceramics International. 2019 ; Vol. 45, No. 11. pp. 13679-13684.

@article{4b86e7e4ec3a40a29264f36566e38b37,

title = " Effect of BaO–B 2 O 3 composite sintering aid on sinterability and electrical property of BaZr 0.85 Y 0.15 O 3-δ ceramic ",

abstract = " Yttrium-doped barium zirconate (BZY) has been extensively studied as a promising electrolyte material for protonic ceramic fuel cells. However, inferior sinterability is a major barrier in BZY development. In our research, the effect of BaO–B 2 O 3 composite sintering aid on the sintering behavior and electrical property of BaZr 0.85 Y 0.15 O 3-δ (BZY15) are examined. BaO–B 2 O 3 addition reduces the sintering temperature of BZY15 by approximately 200 °C via the liquid-phase sintering mechanism. The corresponding bulk and grain boundary conductivities are prominently improved (<3 wt% BaO–B 2 O 3 addition), whereas the further addition of sintering aid decreases the grain boundary conductivity. Notably, the scanning electron microscope (SEM) and electrochemical impedance spectroscopy (EIS) analyses suggest that the enhanced conductivity may be related to the temperature dependence of Ba evaporation.",

keywords = "Composite sintering aid, Electrical property, Electrolyte, Protonic ceramic fuel cells, Yttrium-doped barium zirconate",

author = "Jiahui Jiao and Qiang Li and Yiheng Gu and Yali Luo and Lin Ge and Yifeng Zheng and Han Chen and Lucun Guo",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = aug,

day = "1",

doi = "10.1016/j.ceramint.2019.04.062",

language = "英语",

volume = "45",

pages = "13679--13684",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "11",

}

Jiao, J, Li, Q, Gu, Y, Luo, Y, Ge, L, Zheng, Y, Chen, H & Guo, L 2019, ' Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic ', Ceramics International, vol. 45, no. 11, pp. 13679-13684. https://doi.org/10.1016/j.ceramint.2019.04.062

Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic . / Jiao, Jiahui; Li, Qiang; Gu, Yiheng et al.
In: Ceramics International, Vol. 45, No. 11, 01.08.2019, p. 13679-13684.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Effect of BaO–B 2 O 3 composite sintering aid on sinterability and electrical property of BaZr 0.85 Y 0.15 O 3-δ ceramic

AU - Jiao, Jiahui

AU - Li, Qiang

AU - Gu, Yiheng

AU - Luo, Yali

AU - Ge, Lin

AU - Zheng, Yifeng

AU - Chen, Han

AU - Guo, Lucun

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Yttrium-doped barium zirconate (BZY) has been extensively studied as a promising electrolyte material for protonic ceramic fuel cells. However, inferior sinterability is a major barrier in BZY development. In our research, the effect of BaO–B 2 O 3 composite sintering aid on the sintering behavior and electrical property of BaZr 0.85 Y 0.15 O 3-δ (BZY15) are examined. BaO–B 2 O 3 addition reduces the sintering temperature of BZY15 by approximately 200 °C via the liquid-phase sintering mechanism. The corresponding bulk and grain boundary conductivities are prominently improved (<3 wt% BaO–B 2 O 3 addition), whereas the further addition of sintering aid decreases the grain boundary conductivity. Notably, the scanning electron microscope (SEM) and electrochemical impedance spectroscopy (EIS) analyses suggest that the enhanced conductivity may be related to the temperature dependence of Ba evaporation.

AB - Yttrium-doped barium zirconate (BZY) has been extensively studied as a promising electrolyte material for protonic ceramic fuel cells. However, inferior sinterability is a major barrier in BZY development. In our research, the effect of BaO–B 2 O 3 composite sintering aid on the sintering behavior and electrical property of BaZr 0.85 Y 0.15 O 3-δ (BZY15) are examined. BaO–B 2 O 3 addition reduces the sintering temperature of BZY15 by approximately 200 °C via the liquid-phase sintering mechanism. The corresponding bulk and grain boundary conductivities are prominently improved (<3 wt% BaO–B 2 O 3 addition), whereas the further addition of sintering aid decreases the grain boundary conductivity. Notably, the scanning electron microscope (SEM) and electrochemical impedance spectroscopy (EIS) analyses suggest that the enhanced conductivity may be related to the temperature dependence of Ba evaporation.

KW - Composite sintering aid

KW - Electrical property

KW - Electrolyte

KW - Protonic ceramic fuel cells

KW - Yttrium-doped barium zirconate

UR - http://www.scopus.com/inward/record.url?scp=85064083919&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2019.04.062

DO - 10.1016/j.ceramint.2019.04.062

M3 - 文章

AN - SCOPUS:85064083919

SN - 0272-8842

VL - 45

SP - 13679

EP - 13684

JO - Ceramics International

JF - Ceramics International

IS - 11

ER -

Jiao J, Li Q, Gu Y, Luo Y, Ge L, Zheng Y et al. Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic Ceramics International. 2019 Aug 1;45(11):13679-13684. doi: 10.1016/j.ceramint.2019.04.062

Effect of BaO–B ₂ O ₃ composite sintering aid on sinterability and electrical property of BaZr _0.85 Y _0.15 O _3-δ ceramic

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this