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Research Article | Open Access

Pressure infiltration of molten aluminum for densification of environmental barrier coatings

Lin DONG1Mei-Jun LIU1( )Xiao-Feng ZHANG2( )Xue-Shi ZHUO2Jia-Feng FAN2Guan-Jun YANG1Ke-Song ZHOU2
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Science, Guangzhou 510650, China
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Abstract

Environmental barrier coatings (EBCs) effectively protect the ceramic matrix composites (CMCs) from harsh engine environments, especially steam and molten salts. However, open pores inevitably formed during the deposition process provide the transport channels for oxidants and corrosives, and lead to premature failure of EBCs. This research work proposed a method of pressure infiltration densification which blocked these open pores in the coatings. These results showed that it was difficult for aluminum to infiltrate spontaneously, but with the increase of external gas pressure and internal vacuum simultaneously, the molten aluminum obviously moved forward, and finally stopped infiltrating at a depth of a specific geometry. Based on the wrinkled zigzag pore model, a mathematical relationship between the critical pressure with the infiltration depth and the pore intrinsic geometry was established. The infiltration results confirmed this relationship, indicating that for a given coating, a dense thick film can be obtained by adjusting the internal and external gas pressures to drive a melt infiltration.

References

[1]
Padture NP. Advanced structural ceramics in aerospace propulsion. Nat Mater 2016, 15: 804-809.
[2]
Richards BT, Wadley HNG. Plasma spray deposition of tri-layer environmental barrier coatings. J Eur Ceram Soc 2014, 34: 3069-3083.
[3]
Turcer LR, Padture NP. Rare-earth pyrosilicate solid-solution environmental-barrier coating ceramics for resistance against attack by molten calcia-magnesia-aluminosilicate (CMAS) glass. J Mater Res 2020, 35: 2373-2384.
[4]
Padture NP. Environmental degradation of high-temperature protective coatings for ceramic-matrix composites in gas- turbine engines. npj Mater Degrad 2019, 3: 11.
[5]
Sullivan RM. On the oxidation of the silicon bond coat in environmental barrier coatings. J Eur Ceram Soc 2021, 41: 557-562.
[6]
Wang YW, Niu YR, Zhong X, et al. Water vapor corrosion behaviors of plasma sprayed RE2SiO5 (RE = Gd, Y, Er) coatings. Corros Sci 2020, 167: 108529.
[7]
Sun YN, Xiang HM, Dai FZ, et al. Preparation and properties of CMAS resistant bixbyite structured high-entropy oxides RE2O3 (RE = Sm, Eu, Er, Lu, Y, and Yb): Promising environmental barrier coating materials for Al2O3f/Al2O3 composites. J Adv Ceram 2021, 10: 596-613.
[8]
Bakan E, Kindelmann M, Kunz W, et al. High-velocity water vapor corrosion of Yb-silicate: Sprayed vs. sintered body. Scripta Mater 2020, 178: 468-471.
[9]
Zhang WW, Li GR, Zhang Q, et al. Comprehensive damage evaluation of localized spallation of thermal barrier coatings. J Adv Ceram 2017, 6: 230-239.
[10]
Zhang BP, Song WJ, Wei LL, et al. Novel thermal barrier coatings repel and resist molten silicate deposits. Scripta Mater 2019, 163: 71-76.
[11]
Ma QS, Cai LH. Fabrication and oxidation resistance of mullite/yttrium silicate multilayer coatings on C/SiC composites. J Adv Ceram 2017, 6: 360-367.
[12]
Lee KN. Special issue: Environmental barrier coatings. Coatings 2020, 10: 512.
[13]
Lee KN. Yb2Si2O7 Environmental barrier coatings with reduced bond coat oxidation rates via chemical modifications for long life. J Am Ceram Soc 2019, 102: 1507-1521.
[14]
Xu Y, Hu XX, Xu FF, et al. Rare earth silicate environmental barrier coatings: Present status and prospective. Ceram Int 2017, 43: 5847-5855.
[15]
Guo L, Li G, Gan ZL. Effects of surface roughness on CMAS corrosion behavior for thermal barrier coating applications. J Adv Ceram 2021, 10: 472-481.
[16]
Tian ZL, Zhang J, Zhang TY, et al. Towards thermal barrier coating application for rare earth silicates RE2SiO5 (RE = La, Nd, Sm, Eu, and Gd). J Eur Ceram Soc 2019, 39: 1463-1476.
[17]
Tian ZL, Zhang J, Zheng LY, et al. General trend on the phase stability and corrosion resistance of rare earth monosilicates to molten calcium-magnesium-aluminosilicate at 1300 ℃. Corros Sci 2019, 148: 281-292.
[18]
Richards BT, Sehr S, de Franqueville F, et al. Fracture mechanisms of ytterbium monosilicate environmental barrier coatings during cyclic thermal exposure. Acta Mater 2016, 103: 448-460.
[19]
Jang BK, Feng FJ, Lee KS, et al. Thermal behavior and mechanical properties of Y2SiO5 environmental barrier coatings after isothermal heat treatment. Surf Coat Tech 2016, 308: 24-30.
[20]
Al Nasiri N, Patra N, Jayaseelan DD, et al. Water vapour corrosion of rare earth monosilicates for environmental barrier coating application. Ceram Int 2017, 43: 7393-7400.
[21]
Dong L, Liu MJ, Zhang XF, et al. Infiltration thermodynamics in wrinkle-pores of thermal sprayed coatings. Appl Surf Sci 2021, 543: 148847.
[22]
Chen L, Yang GJ. Epitaxial growth and cracking of highly tough 7YSZ splats by thermal spray technology. J Adv Ceram 2018, 7: 17-29.
[23]
Robinson RC, Smialek JL. SiC recession caused by SiO2 scale volatility under combustion conditions: I, experimental results and empirical model. J Am Ceram Soc 1999, 82: 1817-1825.
[24]
Eaton HE, Linsey GD. Accelerated oxidation of SiC CMC’s by water vapor and protection via environmental barrier coating approach. J Eur Ceram Soc 2002, 22: 2741-2747.
[25]
Jayaseelan DD, Ueno S, Ohji T, et al. Sol-gel synthesis and coating of nanocrystalline Lu2Si2O7 on Si3N4 substrate. Mater Chem Phys 2004, 84: 192-195.
[26]
Dayi EN, Al Nasiri N. Diffusion study of rare-earth cxides into silica layer for environmental barrier coating applications. J Eur Ceram Soc 019, 39: 4216-4222.
[27]
Ramasamy S, Tewari SN, Lee KN, et al. Slurry based multilayer environmental barrier coatings for silicon carbide and silicon nitride ceramics—I. Processing. Surf Coat Technol 2010, 205: 258-265.
[28]
Lee KN, Waters DL, Puleo BJ, et al. Development of oxide-based high temperature environmental barrier coatings for ceramic matrix composites via the slurry process. J Eur Ceram Soc 2021, 41: 1639-1653.
[29]
Ito A, Sekiyama M, Hara T, et al. Self-oriented growth of β-Yb2Si2O7 and X1/X2-Yb2SiO5 coatings using laser chemical vapor deposition. Ceram Int 2020, 46: 9548-9553.
[30]
Richards BT, Young KA, de Francqueville F, et al. Response of ytterbium disilicate-silicon environmental barrier coatings to thermal cycling in water vapor. Acta Mater 2016, 106: 1-14.
[31]
Stolzenburg F, Kenesei P, Almer J, et al. The influence of calcium-magnesium-aluminosilicate deposits on internal stresses in Yb2Si2O7 multilayer environmental barrier coatings. Acta Mater 2016, 105: 189-198.
[32]
Bakan E, Marcano D, Zhou DP, et al. Yb2Si2O7 environmental barrier coatings deposited by various thermal spray techniques: A preliminary comparative study. J Therm Spray Technol 2017, 26: 1011-1024.
[33]
Poerschke DL, Hass DD, Eustis S, et al. Stability and CMAS resistance of ytterbium-silicate/hafnate EBCs/TBC for SiC composites. J Am Ceram Soc 2015, 98: 278-286.
[34]
Zhang XF, Song JB, Deng ZQ, et al. Interface evolution of Si/mullite/Yb2SiO5 PS-PVD environmental barrier coatings under high temperature. J Eur Ceram Soc 2020, 40: 1478-1487.
[35]
Zhang XF, Wang C, Ye RJ, et al. Mechanism of vertical crack formation in Yb2SiO5 coatings deposited via plasma spray-physical vapor deposition. J Materiomics 2020, 6: 102-108.
[36]
Li D, Jiang P, Gao R, et al. Experimental and numerical investigation on the thermal and mechanical behaviours of thermal barrier coatings exposed to CMAS corrosion. J Adv Ceram 2021, 10: 551-564.
[37]
Liu MJ, Zhang M, Zhang XF, et al. Transport and deposition behaviors of vapor coating materials in plasma spray-physical vapor deposition. Appl Surf Sci 2019, 486: 80-92.
[38]
Richards BT, Zhao HB, Wadley HNG. Structure, composition, and defect control during plasma spray deposition of ytterbium silicate coatings. J Mater Sci 2015, 50: 7939-7957.
[39]
Lee JK, Kim HG. YSZ atmospheric plasma coating method for improved high temperature corrosion and wear resistance. J Mech Sci Technol 2020, 34: 3629-3633.
[40]
Garcia E, Lee H, Sampath S. Phase and microstructure evolution in plasma sprayed Yb2Si2O7 coatings. J Eur Ceram Soc 2019, 39: 1477-1486.
[41]
Garcia E, Garces HF, Turcer LR, et al. Crystallization behavior of air-plasma-sprayed ytterbium-silicate-based environmental barrier coatings. J Eur Ceram Soc 2021, 41: 3696-3705.
[42]
Zhang X, Deng Z, Li H, et al. Al2O3-modified PS-PVD 7YSZ thermal barrier coatings for advanced gas-turbine engines. npj Mater Degrad 2020, 4: 31.
[43]
Rabbani HS, Zhao BZ, Juanes R, et al. Pore geometry control of apparent wetting in porous media. Sci Rep 2018, 8: 15729.
[44]
Hu LB, Savidge C, Rizzo DM, et al. Commonly used porous building materials: Geomorphic pore structure and fluid transport. J Mater Civ Eng 2013, 25: 1803-1812.
[45]
Kim J, Shin JH, Sohn S, et al. Analysis of non-uniform flow distribution in parallel micro-channels. J Mech Sci Technol 2019, 33: 3859-3864.
[46]
Matejicek J, Sampath S. In situ measurement of residual stresses and elastic moduli in thermal sprayed coatings: Part 1: Apparatus and analysis. Acta Mater 2003, 51: 863-872.
[47]
Asekomhe SO, Elliott JAW. The effect of interface deformation due to gravity on line tension measurement by the capillary rise in a conical tube. Colloids Surf A: Physicochemical Eng Aspects 2003, 220: 271-278.
Journal of Advanced Ceramics
Pages 145-157
Cite this article:
DONG L, LIU M-J, ZHANG X-F, et al. Pressure infiltration of molten aluminum for densification of environmental barrier coatings. Journal of Advanced Ceramics, 2022, 11(1): 145-157. https://doi.org/10.1007/s40145-021-0523-9

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Received: 06 April 2021
Revised: 22 July 2021
Accepted: 03 August 2021
Published: 10 November 2021
© The Author(s) 2021.

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