Blacklight sintering of BaZrO3-based proton conductors

被引：1

作者：

Ebert, Julian N. ^{[1
,2
]}

Jennings, Dylan ^{[1
,2
,3
]}

Guillon, Olivier ^{[2
]}

Rheinheimer, Wolfgang ^{[1
,2
]}

机构：

[1] Univ Stuttgart, Inst Fertigungstechnol keram Bauteile IFKB, D-70569 Stuttgart, Germany

[2] Forschungszentrum Julich, Inst Energy Mat & Devices Mat Synth & Proc IMD 2, D-52425 Julich, Germany

[3] Ctr Microscopy & Spect Electrons Mat Sci & Technol, D-52425 Julich, Germany

来源：

SCRIPTA MATERIALIA | 2025年 / 256卷

关键词：

Blacklight sintering; Laser treatment; Ionic conductors; Microstructure; Grain boundary segregation; DOPED BARIUM ZIRCONATE; GRAIN-BOUNDARIES; BAZR0.8Y0.2O3-DELTA; CONDUCTIVITY; MICROSTRUCTURE; ELECTROLYTE; CERAMICS; TRANSPORT; BEHAVIOR;

D O I：

10.1016/j.scriptamat.2024.116414

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Acceptor-doped BaZrO3, a ceramic proton conductor, is well researched for use in solid oxide fuel cells due to its proton conductivity and chemical stability. A major drawback of the material is the difficulty of sintering as it requires high sintering temperatures and long heating times (> 1600 degrees C, 24 h). An emerging sintering technology to mitigate this challenge is blacklight sintering, which uses a high-powered blue or UV light source to heat ceramics extremely fast leading to short sintering times and reduced energy demand. In this work, BaZr0.8Y0.2O3-delta (BZY20) and BaZr0.8Y0.1Sc0.1O3-delta (BZY10Sc10) were blacklight-sintered with a high-power blue laser in under four minutes. Even though the resulting samples have a gradient from large to small grains and structurally disordered grain boundaries, the proton conductivity is comparable to conventionally sintered samples. Hence, blacklight sintering is a promising technology with the potential to sinter BaZrO3 much faster, while saving energy.

引用

页数：7

共 50 条

[21] Effect of dopant nature on structures and lattice dynamics of proton-conducting BaZrO3 [J].

Sahraoui, D. Zeudmi ;

Mineva, T. .

SOLID STATE IONICS, 2013, 253 :195-200

[22] Hydrogen separation properties and characterization of BaZr0.9-xPrxIn0.1O3-δ proton conductors [J].

Yang, Chunli ;

Yao, Wei ;

Li, Jun ;

Wang, Lei ;

Wang, Kai ;

Liang, Yanru ;

Yun, Sining .

MATERIALS TODAY COMMUNICATIONS, 2025, 45

[23] Dense and translucent BaZrxCe0.8-xY0.2O3-δ (x=0.5, 0.6, 0.7) proton conductors prepared by spark plasma sintering [J].

Bu, Junfu ;

Jonsson, Par Goran ;

Zhao, Zhe .

SCRIPTA MATERIALIA, 2015, 107 :145-148

[24] Sintering of BaZrO3 and SrZrO3 perovskites: Role of substitutions by yttrium or ytterbium [J].

Bendjeriou-Sedjerari, B. ;

Loricourt, J. ;

Goeuriot, D. ;

Goeuriot, P. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (21) :6175-6183

[25] Electrical properties of BaCeO3-based composite protonic conductors [J].

Lacz, Agnieszka ;

Grzesik, Katarzyna ;

Pasierb, Pawel .

JOURNAL OF POWER SOURCES, 2015, 279 :80-87

[26] The BaCeO3-based composite protonic conductors prepared by Spark Plasma Sintering (SPS) and free-sintering methods [J].

Sari, Sherly Novia ;

Nieroda, Pawel ;

Pasierb, Pawel .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2023, 48 (76) :29748-29758

[27] A review on sintering technology of proton conducting BaCeO3-BaZrO3 perovskite oxide materials for Protonic Ceramic Fuel Cells [J].

Loureiro, Francisco J. A. ;

Nasani, Narendar ;

Reddy, G. Srinivas ;

Munirathnam, N. R. ;

Fagg, Duncan P. .

JOURNAL OF POWER SOURCES, 2019, 438

[28] Sulfur and carbon tolerance of BaCeO3-BaZrO3 proton-conducting materials [J].

Medvedev, D. ;

Lyagaeva, J. ;

Plaksin, S. ;

Demin, A. ;

Tsiakaras, P. .

JOURNAL OF POWER SOURCES, 2015, 273 :716-723

[29] Origin of Space Charge in Grain Boundaries of Proton-Conducting BaZrO3 [J].

Helgee, E. E. ;

Lindman, A. ;

Wahnstrom, G. .

FUEL CELLS, 2013, 13 (01) :19-28

[30] A more efficient anode microstructure for SOFCs based on proton conductors [J].

Rainwater, Ben H. ;

Liu, Mingfei ;

Liu, Meilin .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (23) :18342-18348

← 1 2 3 4 5 →