High-Temperature Properties of Si/(Yb1-xYx)2Si2O7/LaMgAl11O19 Thermal/Environmental Barrier Coatings

Abstract

Abstract: Si/(Yb_1-xY_x)₂Si₂O₇/LaMgAl₁₁O₁₉(x=0, 0.5) thermal/environmental barrier coatings (T/EBCs) were prepared by plasma sprayingmethod on the surface of SiC fiber reinforced SiC ceramic composites (SiC_f/SiC-CMCs). The thermal cycle performance and water-oxygen corrosion resistance at 1 300 ℃ of T/EBCs systems with different components were investigated by means of SEM, EDS and XRD. And failure mechanisms of the thermal cycle and water-oxygen corrosion were further discussed. The results indicate that the thermal cycle life of Si/Yb₂Si₂O₇/LMA coating system is 403 cycles and water-oxygen corrosion resistance is 50 h. The thermal cycle life of Si/YbYSi₂O₇/LMA system decreases to 277 cycles, while the water-oxygen corrosion resistance increases to 80 h. The larger thermal mismatch stress and the formation of Al-containing compounds or solid solutions between YbYSi₂O₇ and LMA are the main factors that reduce the thermal cycle life of Si/YbYSi₂O₇/LMA. The less oxide impurities in the YbYSi₂O₇-EBC layer reduce the probability of reaction with water to generate volatile substances, and improve the water-oxygen corrosion resistance of Si/YbYSi₂O₇/LMA.

Key words: SiC_f/SiC-CMCs, thermal/environmental barrier coating, thermal barrier coating, environmental barrier coating, thermal cycle, high temperature water-oxygen corrosion, Yb₂Si₂O₇, YbYSi₂O₇

CLC Number:

TQ174

MAO Chuanyong, DONG Shujuan, JIANG Jianing, DENG Longhui, CAO Xueqiang. High-Temperature Properties of Si/(Yb_1-xY_x)₂Si₂O₇/LaMgAl₁₁O₁₉ Thermal/Environmental Barrier Coatings[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(7): 2564-2573.

References

[1] ZHANG B, DU Y N, LIU H L, et al. Experimental study on high-speed milling of SiC_f/SiC composites with PCD and CVD diamond tools[J]. Materials (Basel, Switzerland), 2021, 14(13): 3470.
[2] SHA J J, WANG S H, DAI J X, et al. High-temperature mechanical properties and their influence mechanisms of ZrC-modified C-SiC ceramic matrix composites up to 1 600 ℃[J]. Materials (Basel, Switzerland), 2020, 13(7): 1581.
[3] ZAPATA-SOLVAS E, GÓMEZ-GARCÍA D, DOMÍNGUEZ-RODRÍGUEZ A. Towards physical properties tailoring of carbon nanotubes-reinforced ceramic matrix composites[J]. Journal of the European Ceramic Society, 2012, 32(12): 3001-3020.
[4] LI L B. Modeling temperature-dependent vibration damping in C/SiC fiber-reinforced ceramic-matrix composites[J]. Materials (Basel, Switzerland), 2020, 13(7): 1633.
[5] HAN J, WANG Y F, LIU R J, et al. Theoretical and experimental investigation of xenotime-type rare earth phosphate REPO₄, (RE=Lu, Yb, Er, Y and Sc) for potential environmental barrier coating applications[J]. Scientific Reports, 2020, 10: 13681.
[6] TIAN Z L, ZHENG L Y, HU W P, et al. Tunable properties of (Ho_xY_1-x)₂SiO₅ as damage self-monitoring environmental/thermal barrier coating candidates[J]. Scientific Reports, 2019, 9: 415.
[7] NGUYEN S T, NAKAYAMA T, SUEMATSU H, et al. Low thermal conductivity Y₂Ti₂O₇ as a candidate material for thermal/environmental barrier coatings[J]. Ceramics International, 2016, 42(9): 11314-11323.
[8] CHEN H F, ZHANG C, LIU Y C, et al. Recent progress in thermal/environmental barrier coatings and their corrosion resistance[J]. Rare Metals, 2020, 39(5): 498-512.
[9] LIANG P P, DONG S J, ZENG J Y, et al. La₂Hf₂O₇ ceramics as potential top-coat materials for thermal/environmental barrier coatings[J]. Ceramics International, 2019, 45(17): 22432-22436.
[10] YU Y C, POERSCHKE D L. Design of thermal and environmental barrier coatings for Nb-based alloys for high-temperature operation[J]. Surface and Coatings Technology, 2022, 431: 128007.
[11] CHEN P J, XIAO P, LI Z, et al. Thermal cycling behavior of La₂Zr₂O₇/Yb₂Si₂O₇/SiC coated PIP C_f/SiC composites under burner rig tests[J]. Journal of the European Ceramic Society, 2021, 41(7): 4058-4066.
[12] LI G, QIN L, CAO X Q, et al. Water vapor corrosion resistance and failure mechanism of SiC_f/SiC composites completely coated with plasma sprayed tri-layer EBCs[J]. Ceramics International, 2022, 48(5): 7082-7092.
[13] LUO Y X, SUN L C, WANG J M, et al. Material-genome perspective towards tunable thermal expansion of rare-earth di-silicates[J]. Journal of the European Ceramic Society, 2018, 38(10): 3547-3554.
[14] CHEN X L, SUN Y W, HU J K, et al. Thermal cycling failure of the multilayer thermal barrier coatings based on LaMgAl₁₁O₁₉/YSZ[J]. Journal of the European Ceramic Society, 2020, 40(4): 1424-1432.
[15] SUN J B, HUI Y, JIANG J N, et al. Crystallization mechanism of plasma-sprayed LaMgAl₁₁O₁₉ coating[J]. Applied Surface Science, 2020, 504: 144509.
[16] OGAWA T, OTANI N, YOKOI T, et al. Density functional study of the phase stability and Raman spectra of Yb₂O₃, Yb₂SiO₅ and Yb₂Si₂O₇ under pressure[J]. Physical Chemistry Chemical Physics, 2018, 20(24): 16518-16527.
[17] ZHAO C, WANG F, SUN Y J, et al. Synthesis and characterization of β-Yb₂Si₂O₇ powders[J]. Ceramics International, 2013, 39(5): 5805-5811.
[18] TURCER L R, KRAUSE A R, GARCES H F, et al. Environmental-barrier coating ceramics for resistance against attack by molten calcia-magnesia-aluminosilicate (CMAS) glass: part Ⅱ, β-Yb₂Si₂O₇ and β-Sc₂Si₂O₇[J]. Journal of the European Ceramic Society, 2018, 38(11): 3905-3913.
[19] TURCER L R, KRAUSE A R, GARCES H F, et al. Environmental-barrier coating ceramics for resistance against attack by molten calcia-magnesia-aluminosilicate (CMAS) glass: part I, YAlO₃ and γ-Y₂Si₂O₇[J]. Journal of the European Ceramic Society, 2018, 38(11): 3905-3913.
[20] GOLDEN R A, MUELLER K, OPILA E J. Thermochemical stability of Y₂Si₂O₇ in high-temperature water vapor[J]. Journal of the American Ceramic Society, 2020, 103(8): 4517-4535.
[21] FAN X Y, SUN R J, DONG J, et al. Effects of sintering additives on hot corrosion behavior of γ-Y₂Si₂O₇ ceramics in Na₂SO₄+V₂O₅ molten salt[J]. Journal of the European Ceramic Society, 2021, 41(1): 517-525.
[22] TURCER L R, PADTURE N P. Rare-earth pyrosilicate solid-solution environmental-barrier coating ceramics for resistance against attack by molten calcia-magnesia-aluminosilicate (CMAS) glass[J]. Journal of Materials Research, 2020, 35(17): 2373-2384.
[23] GARCIA E, GARCES H F, TURCER L R, et al. Crystallization behavior of air-plasma-sprayed ytterbium-silicate-based environmental barrier coatings[J]. Journal of the European Ceramic Society, 2021, 41(6): 3696-3705.
[24] DONG S J, LÜ K Y, WANG Y H, et al. High-temperature corrosion of HfSiO₄ environmental barrier coatings exposed to water vapor/oxygen atmosphere and molten calcium magnesium aluminosilicate[J]. Corrosion Science, 2022, 197: 110081.
[25] XU L, SU L, WANG H J, et al. Tuning stoichiometry of high-entropy oxides for tailorable thermal expansion coefficients and low thermal conductivity[J]. Journal of the American Ceramic Society, 2022, 105(2): 1548-1557.
[26] RICHARDS B T, BEGLEY M R, WADLEY H N G. Mechanisms of ytterbium monosilicate/mullite/silicon coating failure during thermal cycling in water vapor[J]. Journal of the American Ceramic Society, 2015, 98(12): 4066-4075.
[27] WANG Y W, NIU Y R, ZHONG X, et al. Water vapor corrosion behaviors of plasma sprayed ytterbium silicate coatings[J]. Ceramics International, 2020, 46(18): 28237-28243.
[28] COURCOT E, REBILLAT F, TEYSSANDIER F, et al. Stability of rare earth oxides in a moist environment at elevated temperatures: experimental and thermodynamic studies: part II: comparison of the rare earth oxides[J]. Journal of the European Ceramic Society, 2010, 30(9): 1911-1917.

High-Temperature Properties of Si/(Yb_1-xY_x)₂Si₂O₇/LaMgAl₁₁O₁₉ Thermal/Environmental Barrier Coatings

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	WEI Hailang, CAO Xueqiang, DENG Longhui, JIANG Jianing. Study on CMAS Resistance of LaMeAl₁₁O₁₉(Me=Cu,Zn) Ceramic Bulk Materials [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(7): 2474-2484.
[2]	MA Jian-hui;GUO Peng;ZHANG Hong-song. Thermal Expansion Coefficient and Thermal Conductivity of (Sm0.7Yb0.3)2Ce2O7 Ceramic Materials [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2014, 33(8): 2133-2137.