Preparation and Mechanical Properties of Zirconia Ceramics Doped with Different Y₂O₃ Contents

Abstract

The sintering behavior and mechanical properties of zirconia doped with 2.0mol%–3.0mol% Y₂O₃ were studied by pressure-less sintering. The experimental results show that the densification temperature of zirconia ceramics increases gradually with the decrease of Y₂O₃ doping content by which decreases the sintering driving force due to the lower oxygen vacancy concentration of the systems. Furthermore, the bending strength and fracture toughness of the prepared zirconia ceramics increase with the decrease of Y₂O₃ doping content. It can be attributed to the fact that the phase stability of tetragonal zirconia decreases with the decrease of Y₂O₃ doping content, which is easier to induce “phase transformation toughening” and dissipate impact energy. The relative density, bending strength and fracture toughness of 2.0mol% Y₂O₃ doped zirconia ceramics (2.0Y-ZrO₂) sintered at 1 525 °C are 99.00%, 1 256.65±20.82 MPa and 9.85±0. 13 MPa·m^1/2, respectively.

Keywords

yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramics / sintering behaviors / mechanical properties

References

[1] Yu CY. Application Value Exploration of Ceramic Mobile Phone Back Cover[J]. Industrial Design, 2019, (04): 85–87

[2] Lan HF, Huang YJ, Li SJ, et al. Application and Preparation Process of Fine Ceramics in Smart Phone[J]. Ceramics, 2018, (05): 63–70

[3] Zhang J, Zhang JX. Preparation Technology of Zirconia Ceramic Mobile phone back cover[J]. Journal of Yancheng Institute of Technology (Natural Science Edition), 2020, 33(03): 6-9.

[4] Chen C, Zhao JH, Zhao DH. Mobile Phone Material Quality Based on the Brand Essence[J]. Packaging Engineering, 2017, 38(08): 142-146.

[5] BORIK MA, KULEBYAKIN AV, MYZINA VA, et al. Mechanical Characteristics, Structure, and Phase Stability of Tetragonal Crystals of ZrO₂-Y₂O₃ Solid Solutions Doped with Cerium and Neodymium Oxides[J]. Journal of Physics and Chemistry of Solids, 2021: 150

[6] Pu J, Kang JX, Zhang MY, et al. Research Status and Development Trend of Zirconia Preparation Technology[J]. Multipurpose Utilization of Mineral Resources, 2020, (03): 1–7

[7] Chen XZ, Luo LJ, Liu LY, et al. Microstructure and Mechanical Properties of Hot-pressed Al₂O₃-mullite-ZrO₂-SiC Composites[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2019, 740: 390-397.

[8] Li N, Xie ZP, Yi ZZ, et al. Research Progress of Ceria-stabilized Zirconia[J]. Journal of Ceramics, 2020, 41(06): 835-848.

[9] Borik MA, Bublik VT, Kulebyakin AV, et al. Change in the Phase Composition, Structure and Mechanical Properties of Directed Melt Crystallised Partially Stabilised Zirconia Crystals Depending on the Concentration of Y₂O₃[J]. Journal of the European Ceramic Society, 2015, 35(6): 1 889-1 894.

[10] Dong YH, Huang YM, Ding D, et al. Chemical and Structural Origin of Hole States in Yttria-stabilized Zirconia[J]. Acta Materialia, 2021, 203: 116487.

[11] Ye KH, Li KS, Lu YR, et al. An Overview of Advanced Methods for the Characterization of Oxygen Vacancies in Materials[J]. Trends in Analytical Chemistry, 2019, 116: 102-108.

[12] Palmeira AA, Cangani MP, Rodrigues J D, et al. Influence of Sintering Parameters on the Microstructure and Mechanical Properties of Nanosized 3Y-TZP Ceramics[J]. Cerâmica, 2021, 67(381): 14-22.

[13] Sun Q, Zhang MD, Huang GW, et al. Preparation and Technical Progress of Yttrium Stabilized Zirconia[J]. Nonferrous Metals Engineering and Research, 2020, 41(03): 10-12.

[14] Keuper M, Berthold C, Nickel KG. Long-time Aging in 3mol% Yttria-stabilized Tetragonal Zirconia Polycrystals at Human Body Temperature[J]. Acta Biomaterialia, 2014, 2: 951-959.

[15] Siarampi E, Kontonasaki E, Konstantinos S, et al. Effect of in Vitro Aging on the Flexural Strength and Probability to Fracture of Y-TZP Zirconia Ceramics for All-ceramic Restorations[J]. Dental Materials, 2014, 30: e306-e316.

[16] Chevalier J, Loh J, Gremillard L, et al. Low-temperature Degradation in Zirconia with a Porous Surface[J]. Acta Biomaterialia, 2011, 7: 2 986-2 993.

[17] Li Z, Yue JS, Li EB, et al. The Densification Sintering of Zirconia Ceramic by Pressure-less Sintering[J]. Journal of Xianyang Normal University, 2018, 33(06): 67-69.

[18] Du YN, Fan LK. Research on Optimal Process of High-performance Zirconia Ceramics[J]. China Ceramic Industry, 2019, 26(06): 1-4.

[19] Xie ZP, Xu JK, An D. Research Progress of Novel Sintering Technology for Advanced Ceramic Materials[J]. Materials China, 2019, 38(09): 821-30.

[20] Zhang F, Wang X, Zhang L, et al. Preparation and Properties of ZrO₂ Ceramics by Microwave Sintering[J]. Journal of the Chinese Ceramic Society, 2019, 47(03): 353-357.

[21] Luo S, Yu CW, Lu YH. Pressure-assisted Flash Sintering Processing of Tetragonal Zirconia Ceramics[J]. Journal of the Chinese Ceramic Society, 2021, 49(03): 455-460.

[22] Xue W, Xie Z, Yi J, et al. Spark Plasma Sintering and Characterization of 2Y-TZP Ceramics[J]. Ceramics International, 2015, 41(3): 4 829-4 835.

[23] Wang J. Study on the Preparation and Properties of Y-TZP Ceramics by Microwave Sintering[D], 2018 Jangshan: North China University of Science and Technology.

[24] Li S, Xie ZP. Preparation of Zirconia Ceramics with High Density and Fine Grains by Oscillatory Pressure Sintering[J]. Journal of Inorganic Materials, 2016, 31(02): 207-212.

[25] Han Y, Li S, Zhu T, et al. An Oscillatory Pressure Sintering of Zirconia Powder: Rapid Densification with Limited Grain Growth[J]. Journal of the American Ceramic Society, 2017, 100(7): 2 774-2 780.

[26] Han Y, Li S, Zhu T, et al. An Oscillatory Pressure Sintering of Zirconia Powder: Densification Trajectories and Mechanical Properties[J]. Journal of the American Ceramic Society, 2018, 101(5): 1 824-1 829.

[27] Xie ZP. Structural Ceramics[M], 2011 Beijing: Tsinghua University Press. 32-34.

[28] Ou YJ, Li XY, Ji J, et al. Research Progress in the Structural, Mechanical Properties of ZrO₂ and Their Applications[J]. Materials Review, 2013, 27(15): 13-18.

[29] Li XB. The Vacancy Defects in Yttria-stabilized Zirconia: a First-principles Calculation[D], 2015 CHANG Sha: Hunan Normal University.

[30] Li S, Xie ZP, An D, et al. Zirconia Ceramics Consolidated by Oscillatory Pressure Sintering and Subsequent Carburization[J]. Ceramics International, 2019, 45(7PartA): 9 038-9 042.

[31] Li X, Zhang XX, Dai JY, et al. Effect of Powder Size on Fracture Toughness of Zirconia Ceramics[J]. Materials for Mechanical Engineering, 2016, 40(10): 75-78.

[32] ANINDA DS, TABASSUM MH, SAUGATA S, et al. Influences of Sintering Time on the Structures and Mechanical Properties of Zirconia Toughened Alumina Nanocomposites[J]. Materials Today, https://doi.org/10.1016/J.MATPR.2020.11.504

[33] Shukla S, Seal S. Mechanisms of Room Temperature Metastable Tetragonal Phase Stabilisation in Zirconia[J]. International Materials Reviews, 2005, 50(1): 45-64.