莫来石/氧化铝预应力涂层增强氧化铝的弯曲强度和抗热震性能

doi:10.15541/jim20220238

无机材料学报 ›› 2022, Vol. 37 ›› Issue (12): 1295-1301.DOI: 10.15541/jim20220238

莫来石/氧化铝预应力涂层增强氧化铝的弯曲强度和抗热震性能

郝鸿渐¹(), 李海燕¹^,², 万德田¹^,²^,³(), 包亦望¹^,²^,³(), 李月明³

1.中国建筑材料科学研究总院有限公司, 绿色建筑材料国家重点实验室, 北京 100024
2.中国国检测试控股集团股份有限公司, 北京 100024
3.景德镇陶瓷大学材料科学与工程学院, 景德镇 333403

收稿日期:2022-04-22 修回日期:2022-07-14 出版日期:2022-12-20 网络出版日期:2022-08-04
通讯作者: 万德田, 教授. E-mail: dtwan@ctc.ac.cn;
包亦望, 教授. E-mail: ywbao@ctc.ac.cn
作者简介:郝鸿渐(1996-), 男, 硕士研究生. E-mail: haohongjian1996@qq.com
基金资助:
国家自然科学基金重点项目(52032011);江西省技术创新引导类计划项目(20212BDH81010)

Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating

HAO Hongjian¹(), LI Haiyan¹^,², WAN Detian¹^,²^,³(), BAO Yiwang¹^,²^,³(), LI Yueming³

1. State Key Laboratory for Green Building Materials, China Building Materials Academy, Beijing 100024, China
2. China Testing & Certification International Group Co., Ltd., Beijing 100024, China
3. School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China

Received:2022-04-22 Revised:2022-07-14 Published:2022-12-20 Online:2022-08-04
Contact: WAN Detian, professor. E-mail: dtwan@ctc.ac.cn;
BAO Yiwang, professor. E-mail: ywbao@ctc.ac.cn
About author:HAO Hongjian (1996-), male, Master candidate. E-mail: haohongjian1996@qq.com
Supported by:
National Natural Science Foundation of China(52032011);Technology Innovation Guidance Project of Jiangxi Province(20212BDH81010)

摘要/Abstract

摘要：

在陶瓷表面引入含压应力的涂层是一种有效的增强技术。本研究将氧化铝和石英粉混合浆料涂覆在预烧后的氧化铝坯体上, 无压共烧原位合成了热膨胀系数较低的莫来石-氧化铝涂层。利用降温过程中涂层内形成的残余压应力实现了氧化铝陶瓷的预应力强化。结果表明：随着涂层中石英掺量增加, 预应力氧化铝的强度出现先增大后减小的趋势; 当涂层中掺入石英的质量分数为15%时, 预应力增强效果最好, 涂层与基体界面结合紧密, 预应力氧化铝陶瓷的弯曲强度达到(549.44±27.2) MPa, 比普通氧化铝的强度提高了37.19%; 当涂层中掺入石英的质量分数增大到15%以上, 由于烧结收缩不匹配反而引起强度下降; 这种预应力增强效果会随着温度升高逐渐减弱, 当测试温度达到并超过1000 ℃时, 预应力氧化铝和普通氧化铝会具有大致相等的抗弯强度。由于表层压应力的存在, 预应力氧化铝还展现出更好的抗热震性能和损伤耐受性。

关键词: 预应力强化, 氧化铝陶瓷, 低膨胀系数, 弯曲强度, 抗热震性能

Abstract:

It is an effective strengthened technique to introduce a coating containing compressive stress on the surface of ceramic. In this work, the mixed slurry of alumina and quartz powder was coated on the pre-sintered alumina body, then the mullite-alumina coating with lower thermal expansion coefficient was synthesized in-situ after pressureless co-sintering. The pre-stressed strengthening of alumina was achieved by the residual compressive stress formed in the coating during the cooling process. The results indicate that, with the increase of the doping content of quartz in the coating, the flexural strength of pre-stressed alumina increases firstly and then decreases. The flexural strength of specimen realizes the highest value when the doping mass fraction of quartz is 15%, and the interface between the coating and the substrate bonds tightly. Under this condition, the flexural strength of the pre-stressed alumina ceramic is (549.44±27.2) MPa, which is 37.19% higher than that of the common alumina. When the doping mass fraction of quartz is higher than 15%, the flexural strength decreases due to the shrinkage stress mismatch in the sintering process. The effect of prestress enhancement weakens gradually with the increase of temperature. As the testing temperature reaches and exceeds 1000 ℃, pre-stressed alumina and common alumina possess approximately equal flexural strength. Pre-stressed alumina also exhibits better thermal shock resistance and damage tolerance due to the compressive stress formed in the coating

Key words: pre-stressed strengthening, alumina ceramics, low coefficient of thermal expansion, flexural strength, thermal shock resistance

中图分类号:

TQ174

郝鸿渐, 李海燕, 万德田, 包亦望, 李月明. 莫来石/氧化铝预应力涂层增强氧化铝的弯曲强度和抗热震性能[J]. 无机材料学报, 2022, 37(12): 1295-1301.

HAO Hongjian, LI Haiyan, WAN Detian, BAO Yiwang, LI Yueming. Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating[J]. Journal of Inorganic Materials, 2022, 37(12): 1295-1301.

图/表 12

图1 预应力氧化铝陶瓷设计示意图

Fig. 1 Schematic illustration of pre-stressed Al2O3

图2 不同石英含量制备的莫来石-氧化铝涂层材料物相分析

Fig. 2 Phase analyses of mullite-alumina coating materials fabricated with different mass fractions of quartz (a) XRD patterns after sintered at 1550 ℃; (b) Quantitative analysis by Rietveld method

图3 不同石英含量制备的预应力氧化铝室温弯曲强度

Fig. 3 Flexural strength at room temperature of pre-stressed Al2O3 fabricated with different mass fractions of quartz

图4 C15-A预应力陶瓷高温下的弯曲强度

Fig. 4 Flexural strength of C15-A pre-stressed ceramics tested at different high temperatures

图5 预应力氧化铝((a) C10-A, (b) C25-A, (c) C15-A)断面扫描电镜照片, (d) C15-A的EDS分析

Fig. 5 Fracture section SEM images of pre-stressed alumina ((a) C10-A, (b) C25-A, (c) C15-A), (d) EDS analysis of C15-A

图6 C30-A样品的侧面光学显微照片

Fig. 6 Optical micrograph of the side of C30-A sample

表1 不同石英含量制备预应力氧化铝的涂层和基体残余应力的计算结果

Table 1 Calculation of residual stresses of coatings and substrates in pre-stressed Al2O3 fabricated with different mass fractions of quartz

Sample	E_c/GPa	E_s/GPa	α_c/(×10^-6, K^-1)	α_s/(×10^-6, K^-1)	h_c/μm	h_s/μm	ΔT	σ_c/MPa	σ_s/MPa
C5-A	91.36	380.11	6.69	7.58	50	1450	1000 ℃	-119.66	4.80
C10-A	80.18	380.11	6.06	7.58	50	1450	1000 ℃	-151.94	6.09
C15-A	73.33	380.11	5.33	7.58	50	1450	1000 ℃	-181.86	7.29
C20-A	67.71	380.11	5.04	7.58	50	1450	1000 ℃	-189.74	7.60
C25-A	62.14	380.11	4.72	7.58	50	1450	1000 ℃	-196.17	7.86
C30-A	58.31	380.11	4.41	7.58	50	1450	1000 ℃	-197.69	7.91

图7 C30-A样品的断面SEM照片

Fig. 7 Fracture section SEM images of C30-A sample

图8 不同预应力氧化铝涂层中残余压应力和基体与涂层厚度比之间的理论关系

Fig. 8 Theoretical relationship between residual compressive stress and substrate-to-coating thickness ratio in different pre- stressed aluminas

图9 C15-A预应力氧化铝在不同温度热震后的剩余弯曲强度

Fig. 9 Residual flexural strength of C15-A pre-stressed alumina after thermal shock at different temperatures

图10 热冲击后陶瓷表面的光学显微照片

Fig. 10 Surface optical micrographs of ceramics after thermal shock (a) Al2O3 at 260 ℃; (b) Al2O3 at 320 ℃; (c) C15-A at 320 ℃

图11 320 ℃热震后陶瓷的断面SEM照片

Fig. 11 Cross section SEM images of ceramic after thermal shock at 320 ℃ (a) Al2O3; (b) C15-A

参考文献 22

[1]	NIELSEN J H, THIELE K, SCHNEIDER J, et al. Compressive zone depth of thermally tempered glass. Construction and Building Materials, 2021, 310: 125238. DOI URL
[2]	GREEN D J. Crack arrest and multiple cracking in glass through the use of designed residual stress profiles. Science, 1999, 283(5406): 1295-1297. PMID
[3]	BERMEJO R, TORRES Y, SÁNCHEZ-HERENCIA A J, et al. Residual stresses, strength and toughness of laminates with different layer thickness ratios. Acta Materialia, 2006, 54(18): 4745-4757. DOI URL
[4]	BERMEJO R, PASCUAL J, LUBE T, et al. Optimal strength and toughness of Al₂O₃-ZrO₂ laminates designed with external or internal compressive layers. Journal of the European Ceramic Society, 2008, 28(8): 1575-1583. DOI URL
[5]	LAKSHMINARAYANAN R, SHETTY D, CUTLER R A. Toughening of layered ceramic composites with residual surface compression. Journal of the American Ceramic Society, 1996, 79(1): 79-87. DOI URL
[6]	BAO Y W, KUANG F H, SUN Y, et al. A simple way to make pre-stressed ceramics with high strength. Journal of Materiomics, 2019, 5(4): 657-662. DOI
[7]	LI H Y, HAO H J, TIAN Y, et al. Effects of residual stresses on strength and crack resistance in ZrO₂ ceramics with alumina coating. Journal of Inorganic Materials, 2022, 37(4): 467-472. DOI URL
[8]	BAO Y W, SUN Y, KUANG F H, et al. Development and prospects of high strength pre-stressed ceramics. Journal of Inorganic Materials, 2020, 35(4): 399-408. DOI
[9]	LI N, ZHANG X Y, QU Y N, et al. A simple and efficient way to prepare porous mullite matrix ceramics via directly sintering SiO₂- Al₂O₃ microspheres. Journal of the European Ceramic Society, 2016, 36(11): 2807-2812. DOI URL
[10]	LI H, LIU Y S, LIU Y S, et al. Silica strengthened alumina ceramic cores prepared by 3D printing. Journal of the European Ceramic Society, 2021, 41(4): 2938-2947. DOI URL
[11]	LIN Y M, LI C W, WANG C A. Effects of mullite content on the properties and microstructure of porous anorthite/mullite composite ceramics. Journal of Inorganic Materials, 2011, 26(10): 1095-1100. DOI
[12]	JIANG Y, CHANG L F, RU H Q, et al. Microstructure and oxidation behaviors of dense mullite-silicon carbide-silicon coating for graphite fabricated by dipping-pyrolysis and reactive infiltration. Surface and Coatings Technology, 2018, 350: 410-418. DOI URL
[13]	包亦望. 先进陶瓷力学性能评价方法与技术. 北京: 中国建材工业出版社, 2017: 3.
[14]	ZHOU X, LIU D, BU H L, et al. XRD-based quantitative analysis of clay minerals using reference intensity ratios, mineral intensity factors, Rietveld, and full pattern summation methods: a critical review. Solid Earth Sciences, 2018, 3(1): 16-29. DOI URL
[15]	BAO Y W, SU S B, HUANG J L. An uneven strain model for analysis of residual stress and interface stress in laminate composites. Journal of Composite Materials, 2002, 36(14): 1769-1778. DOI URL
[16]	CAI P Z, GREEN D J, MESSING G L. Constrained densification of alumina/zirconia hybrid laminates, II: viscoelastic stress computation. Journal of the American Ceramic Society, 1997, 80(8): 1948-1949.
[17]	JIANG R, SUN X, LIU H T, et al. Microstructure and mechanical properties improvement of the Nextel™ 610 fiber reinforced alumina composite. Journal of the European Ceramic Society, 2021, 41(10): 5394-5399. DOI URL
[18]	PABST W, GREGOROVÁ E, ČERNÝ M. Isothermal and adiabatic Young's modulus of alumina and zirconia ceramics at elevated temperatures. Journal of the European Ceramic Society, 2013, 33(15): 3085-3093. DOI URL
[19]	WANG W, SHI Z, WANG Z, et al. Phase transformation and properties of high-quality mullite ceramics synthesized using desert drift sands as raw materials. Materials Letters, 2018, 221: 271-274. DOI URL
[20]	WEI C G, LIU Z, BAO Y W, et al. Evaluating thermal expansion coefficient and density of ceramic coatings by relative method. Materials Letters, 2015, 161: 542-544. DOI URL
[21]	BAO Y W, ZHOU Y C, BU X X, et al. Evaluating elastic modulus and strength of hard coatings by relative method. Materials Science and Engineering: A, 2007, 458(1): 268-274. DOI URL
[22]	CAI P Z, GREEN D J, MESSING G L. Constrained densification of alumina/zirconia hybrid laminates, I: experimental observations of processing defects. Journal of the American Ceramic Society, 1997, 80(8): 1929-1939. DOI URL

莫来石/氧化铝预应力涂层增强氧化铝的弯曲强度和抗热震性能

Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating

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