溶胶凝胶、碳热/硼热还原法制备ZrB<sub>2</sub>-SiC-LaB<sub>6</sub>超细复相粉体

doi:10.19976/j.cnki.43-1448/TF.2023005

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Abstract ZrB₂-SiC-LaB₆ ultrafine multiphase powders were prepared by the way of sol-gel method and carbothermal/borothermal reduction process, using zirconium oxychloride (ZrOCl₂·8H₂O), boric acid (H₃BO₃), hydrated lanthanum chloride (LaCl₃·7H₂O), ethyl orthoate (TESO), and glucose (C₆H₁₂O₆) as the main raw materials, polyethylene glycol (PEG) as the dispersant. The effects of different temperatures and raw material ratios on the synthesis process of composite powders were studied and characterized by X-ray diffraction, SEM, infrared spectroscopy, and differential thermal scanning. The results show that when n(Zr)∶n(B)∶n(Si)∶n(La)∶n(C) =1∶3∶0.7∶0.16∶8 in the raw material, ZrB₂-SiC-LaB₆ superfine multiphase powders can be synthesized by holding at 1 500 ℃ for 2 h under argon atmosphere. The average particle size of multiphase powder is 300 nm, in which ZrB₂ phase is hexagonal crystal system, SiC and LaB₆ phase are cubic system, and the average size of ternary crystallite is 33.2 nm.

Key words： ZrB₂-SiC-LaB₆ sol-gel carbothermal/borothermal reduction ultrafine multiphase powders ultra-high temperature ceramics

Received: 19 January 2023 Published: 06 July 2023

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	ZHOU Zhe
	XIA Dawang
	LI Zhi
	LIAO Huanyi
	JIN Xin

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ZHOU Zhe,XIA Dawang,LI Zhi, et al. Preparation of ZrB₂-SiC-LaB₆ ultrafine multiphase powders by sol-gel and carbothermal/borothermal reduction[J]. Materials Science and Engineering of Powder Metallurgy, 2023, 28(3): 223-232.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2023005 OR http://pmbjb.csu.edu.cn/EN/Y2023/V28/I3/223

[1] JACKSON T A, EKLUND D R, FINK A J.High speed propulsion: performance advantage of advanced materials[J]. Journal of Materials Science, 2004, 39: 5905-5913.
[2] VAN WIE D M, DREWRY D G, KING D E, et al. The hypersonic environment: required operating conditions and design challenges[J]. Journal of Materials Science, 2004, 39: 5915-5924.
[3] KASHYAP S K, MITRA R.Microstructure and composition of multi-layered oxide scale evolved during isothermal exposure of ZrB₂-SiC-LaB₆ composite to air at 1 500 ℃[J]. Philosophical Magazine Letters, 2021, 101: 265-276.
[4] ASL M S, NAMINI A S, MOTALLEBZADEH A, et al.Effects of sintering temperature on microstructure and mechanical properties of spark plasma sintered titanium[J]. Materials Chemistry and Physics, 2018, 203: 266-273.
[5] TORABI S, VALEFI Z, EHSANI N.Evaluation of oxy-acetylene flame angle effect on the erosion resistance of SiC/ZrB₂-SiC/ZrB₂ multilayer coatings fabricated by the shielding shrouded plasma spray technique[J]. Ceramics International, 2022, 48: 8155-8168.
[6] MALLIK M, Roy S, RAY K K, et al.Effect of SiC content, additives and process parameters on densification and structure-property relations of pressureless sintered ZrB₂-SiC composites[J]. Ceramics International, 2013, 39: 2915-2932.
[7] MOHAMMADPOUR B, AHMADI Z, SHOKOUHIMEHR M.Spark plasma sintering of Al-doped ZrB₂-SiC composite[J]. Ceramics International, 2019, 45: 4262-4267.
[8] HASSAN R, BALANI K.Oxidation kinetics of ZrB₂- and HfB₂-powders and their SiC reinforced composites[J]. Corrosion Science, 2020, 177(4): 1-14.
[9] MALLIK M, KAILATH A J, RAY K K, et al.Effect of SiC content on electrical, thermal and ablative properties of pressureless sintered ZrB₂-based ultrahigh temperature ceramic composites[J]. Journal of the European Ceramic Society, 2017, 37: 559-572.
[10] KIM K H, SHIM K B.The effect of lanthanum on the fabrication of ZrB₂-ZrC composites by spark plasma sintering[J]. Materials Characterization, 2003, 50: 31-37.
[11] ZAPATA-SOLVAS E, JAYASEELAN D D, BROWN P M, et al.Effect of La₂O₃ addition on long-term oxidation kinetics of ZrB₂-SiC and HfB₂-SiC ultra-high temperature ceramics[J]. Journal of the European Ceramic Society, 2014, 34: 3535-3548.
[12] LIU H Z, YANG X, FANG C Q, et al.Ablation resistance and mechanism of SiC-LaB₆ and SiC-LaB₆-ZrB₂ ceramics under plasma flame[J]. Ceramics International, 2020, 46: 16249-16256.
[13] JAYASEELAN D D, ZAPATA-SOLVAS E, CHATER R J, et al.Structural and compositional analyses of oxidised layers of ZrB₂-based UHTCs[J]. Journal of the European Ceramic Society, 2015, 35: 4059-4071.
[14] KASHYAP S K, MITRA R.Effect of LaB₆ additions on densification, microstructure, and creep with oxide scale formation in ZrB₂-SiC composites sintered by spark plasma sintering[J]. Journal of the European Ceramic Society, 2019, 39: 2782-2793.
[15] HU P, ZHANG X H. HAN J C, et al.Effect of various additives on the oxidation behavior of ZrB₂-based ultra-high-temperature ceramics at 1 800 ℃[J]. Journal of the American Ceramic Society, 2010, 93(2): 345-349.
[16] MONTEVERDE F, ALFANO D, SAVINO R.Effects of LaB₆ addition on arc-jet convectively heated SiC-containing ZrB₂-based ultra-high temperature ceramics in high enthalpy supersonic airflows[J]. Corrosion Science, 2013, 75: 443-453.
[17] 王新刚, 刘吉轩, 阚艳梅, 等. ZrB₂-SiC陶瓷的注浆成型与无压烧结[J]. 无机材料学报, 2009, 24(4): 831-835.
WANG Xingang, LIU Jixuan, KAN Yanmei, et al.Slip casting and pressure less sinter of ZrB₂-SiC ceramics[J]. Journal of Inorganic Materials, 2009, 24(4): 831-835.
[18] 吴雯雯, 张国军, 阚艳梅, 等. ZrB₂-SiC基超高温陶瓷(UHTCs)的反应烧结及SHS粉体制备[J]. 稀有金属材料与工程, 2007, 36: 20-23.
WU Wenwen, ZHANG Guojun, KAN Yanmei, et al.Reaction sintering of ZrB₂/SiC-based ultra-high temperature ceramics (UHTCs) and preparation of SHS powder[J]. Rare Metal Materials and Engineering, 2007, 36: 20-23.
[19] ZHANG S W, KHANGKHAMANO M, ZHANG H J, et al.Novel synthesis of ZrB₂ powder via molten-salt-mediated magnesiothermic reduction[J]. Journal of the American Ceramic Society, 2014, 97: 1686-1688.
[20] MOAYYERI H, MEHDINAVAZ A R, GHELICH R, et al.In situ synthesis of ZrB₂-ZrC-SiC ultra-high-temperature nanocomposites by a sol-gel process[J]. Advances in Applied Ceramics, 2018, 117: 189-195.
[21] LIU C Q, CHANG X J, WU Y T, et al.In-situ synthesis of ultra-fine ZrB₂-ZrC-SiC nanopowders by sol-gel method[J]. Ceramics International, 2020, 46: 7099-7108.
[22] ZHAN Z Q, ZENG H C.A catalyst-free approach for sol-gel synthesis of highly mixed ZrO₂-SiO₂ oxides[J]. Journal of Non Crystalline Solids, 1999, 243: 26-38.
[23] KONGWUDTHITI S, PRASERTHDAM P, TANAKULRUNGSANK W, et al.The influence of Si-O-Zr bonds on the crystal-growth inhibition of zirconia prepared by the glycothermal method[J]. Journal of Materials Processing Technology, 2003, 136: 186-189.
[24] 林健. 催化剂对正硅酸乙酯水解-聚合机理的影响[J]. 无机材料学报, 1997, 12: 363-369.
LIN Jian.Effect of catalyst on hydrolysis-polymerization mechanism of ethyl orthosilicate[J]. Journal of Inorganic Materials, 1997, 12: 363-369.
[25] 陆佩文. 无机材料科学基础[M]. 武汉: 武汉工业大学出版社, 2005: 94-96.
LU Peiwen.Fundamentals of Inorganic Materials Science [M]. Wuhan: Wuhan University of Technology Press, 2005: 94-96.
[26] LANGFORD J I, WILSON A.Scherrer after sixty years: a survey and some new results in the determination of crystallite size[J]. Journal of Applied Crystallography, 2015, 11: 102-113.