High-temperature corrosion of a Si3N4/W composite exposed to molten MgCl2-NaCl-KCl salts

被引：2

作者：

Wu, Yueqi ^{[1
]}

Jia, Mingyong ^{[1
]}

Huang, Zhifeng ^{[1
]}

Shen, Qiang ^{[1
]}

Chen, Fei ^{[1
,2
,3
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Mat Composite Technol, Wuhan 430070, Hubei, Peoples R China

[2] Chem & Chem Engn Guangdong Lab, Chaozhou Branch, Chaozhou 521000, Guangdong, Peoples R China

[3] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

CORROSION SCIENCE | 2024年 / 230卷

基金：

中国国家自然科学基金;

关键词：

Ceramic/metal composite; Molten salts; High temperature corrosion; Bending strength; THERMAL-ENERGY STORAGE; SOLAR POWER-PLANTS; NEXT-GENERATION; SILICON-NITRIDE; CHLORIDE SALTS; BEHAVIOR; ELEMENTS; SYSTEMS; ALLOYS;

D O I：

10.1016/j.corsci.2024.111942

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The high-temperature corrosion behavior of a Si3N4/W composite under the molten MgCl2-NaCl-KCl salts has been investigated. It is suggested that the molten salts diffuse along the physical surface defects and enter the interior of adjacent Si3N4/W grains, leading to the 9.1% bending strength loss after 400 hours for corrosion. In air atmosphere, oxidation products WO2, WO3, and corrosion product MgWO4 caused a 34.3% bending strength decrease after 400 hours for corrosion. This study elucidates the high-temperature molten chloride salt corrosion mechanisms of the Si3N4/W composite material under two different atmospheres. The composite demonstrates relatively excellent corrosion resistance in service environments.

引用

页数：11

共 40 条

[1] A high-performance lung-inspired ceramic 3D-printed heat exchanger for high-temperature energy-efficient systems [J].

Ahmadi, Behzad ;

Cesarano, Joseph ;

Nawaz, Kashif ;

Ninos, Nikolas ;

Bigham, Sajjad .

APPLIED THERMAL ENGINEERING, 2023, 219

[2] Latest developments, assessments and research trends for next generation of concentrated solar power plants using liquid heat transfer fluids [J].

Arias, I. ;

Cardemil, J. ;

Zarza, E. ;

Valenzuela, L. ;

Escobar, R. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2022, 168

[3] Aggressive corrosion of C-276 nickel superalloy in chloride/sulphate eutectic salt [J].

Bell, S. ;

Rhamdhani, M. A. ;

Steinberg, T. ;

Will, G. .

SOLAR ENERGY, 2021, 227 :557-567

[4] C-276 nickel alloy corrosion in eutectic Na2CO3/NaCl molten salt under isothermal and thermal cycling conditions [J].

Bell, Stuart ;

de Bruyn, Mitchell ;

Steinberg, Ted ;

Will, Geoffrey .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2022, 240

[5] Ceramic-metal composites for heat exchangers in concentrated solar power plants [J].

Caccia, M. ;

Tabandeh-Khorshid, M. ;

Itskos, G. ;

Strayer, A. R. ;

Caldwell, A. S. ;

Pidaparti, S. ;

Singnisai, S. ;

Rohskopf, A. D. ;

Schroeder, A. M. ;

Jarrahbashi, D. ;

Kang, T. ;

Sahoo, S. ;

Kadasala, N. R. ;

Marquez-Rossy, A. ;

Anderson, M. H. ;

Lara-Curzio, E. ;

Ranjan, D. ;

Henry, A. ;

Sandhage, K. H. .

NATURE, 2018, 562 (7727) :406-+

[6] Opportunities and challenges for a sustainable energy future [J].

Chu, Steven ;

Majumdar, Arun .

NATURE, 2012, 488 (7411) :294-303

[7] Characterization of corrosion resistance of C/C-SiC composite in molten chloride mixture MgCl2/NaCl/KCl at 700°C [J].

Ding, Wenjin ;

Shi, Yuan ;

Kessel, Fiona ;

Koch, Dietmar ;

Bauer, Thomas .

NPJ MATERIALS DEGRADATION, 2019, 3 (01)

[8] Molten chloride salts for next generation CSP plants: Electrolytical salt purification for reducing corrosive impurity level [J].

Ding, Wenjin ;

Gomez-Vidal, Judith ;

Bonk, Alexander ;

Bauer, Thomas .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2019, 199 :8-15

[9] Molten chloride salts for next generation concentrated solar power plants: Mitigation strategies against corrosion of structural materials [J].

Ding, Wenjin ;

Shi, Hao ;

Jianu, Adrian ;

Xiu, Yanlei ;

Bonk, Alexander ;

Weisenburger, Alfons ;

Bauer, Thomas .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2019, 193 :298-313

[10] Corrosion behavior of metallic alloys in molten chloride salts for thermal energy storage in concentrated solar power plants: A review [J].

Ding, Wenjin ;

Bonk, Alexander ;

Bauer, Thomas .

FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING, 2018, 12 (03) :564-576

← 1 2 3 4 →