Influence of Phase Constitution on Mechanical Performance of 12Ce-3Y-ZrO2/2.5 wt pct Al2O3 Composites

Abstract

Abstract: The phase constitution of a composite consisting of 12 at. pct CeO2-3 at. Pct Y2O3-ZrO2/2.5 wt pct Al2O3 (3Y12Ce2.5Al) was determined by thermodynamic calculation. It is a combination of 36.9 at. pct cubic phase and 63.1 at. pct tetragonal phase at 1450℃. Green compacts were fabricated by cold isostatic pressing with powder synthesized by coating technique, and pressureless sintered at 1450℃. The fracture toughness and Vickers hardness, evaluated by the micro-indentation method, are 2.02 MPa·m1/2 and 11.395 GPa, respectively. The addition of 3 at. pct Y2O3 to 12 at. Pct CeO2-ZrO2 ceramic leads to drastically decrease in toughness compared to composites without yttria stabilizer. No monoclinic phase is detected on the surface of all the ground samples. The high content of cubic phase and lack of phase transformation can be attributed to the low toughness based on the thermodynamic prediction.

Key words: Thermodynamics, Mechanical properties, ZrO2- CeO2- Y2O3

Shuigen HUANG, Lin LI, J.Vleugels, O.V.D.Biest. Influence of Phase Constitution on Mechanical Performance of 12Ce-3Y-ZrO2/2.5 wt pct Al2O3 Composites[J]. J Mater Sci Technol, 2004, 20(03): 284-286.

[1]	Hui Jiang, Dongxu Qiao, Wenna Jiao, Kaiming Han, Yiping Lu, Peter K. Liaw. Tensile deformation behavior and mechanical properties of a bulk cast Al_0.9CoFeNi₂ eutectic high-entropy alloy [J]. J. Mater. Sci. Technol., 2021, 61(0): 119-124.
[2]	Qin Xu, Dezhi Chen, Chongyang Tan, Xiaoqin Bi, Qi Wang, Hongzhi Cui, Shuyan Zhang, Ruirun Chen. NbMoTiVSi_x refractory high entropy alloys strengthened by forming BCC phase and silicide eutectic structure [J]. J. Mater. Sci. Technol., 2021, 60(0): 1-7.
[3]	Qiang Ren, Yuexin Zhang, Ying Ren, Lifeng Zhang, Jujin Wang, Yadong Wang. Prediction of spatial distribution of the composition of inclusions on the entire cross section of a linepipe steel continuous casting slab [J]. J. Mater. Sci. Technol., 2021, 61(0): 147-158.
[4]	Lin Yuan, Jiangtao Xiong, Yajie Du, Jin Ren, Junmiao Shi, Jinglong Li. Microstructure and mechanical properties in the TLP joint of FeCoNiTiAl and Inconel 718 alloys using BNi2 filler [J]. J. Mater. Sci. Technol., 2021, 61(0): 176-185.
[5]	Xiaoxiao Li, Meiqiong Ou, Min Wang, Long Zhang, Yingche Ma, Kui Liu. Effect of boron addition on the microstructure and mechanical properties of K4750 nickel-based superalloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 177-185.
[6]	H.F. Li, Z.Z. Shi, L.N. Wang. Opportunities and challenges of biodegradable Zn-based alloys [J]. J. Mater. Sci. Technol., 2020, 46(0): 136-138.
[7]	Xingchen Xu, Daoxin Liu, Xiaohua Zhang, Chengsong Liu, Dan Liu. Mechanical and corrosion fatigue behaviors of gradient structured 7B50-T7751 aluminum alloy processed via ultrasonic surface rolling [J]. J. Mater. Sci. Technol., 2020, 40(0): 88-98.
[8]	Qian Yan, Bo Song, Yusheng Shi. Comparative study of performance comparison of AlSi10Mg alloy prepared by selective laser melting and casting [J]. J. Mater. Sci. Technol., 2020, 41(0): 199-208.
[9]	C. Yang, J.F. Zhang, G.N. Ma, L.H. Wu, X.M. Zhang, G.Z. He, P. Xue, D.R. Ni, B.L. Xiao, K.S. Wang, Z.Y. Ma. Microstructure and mechanical properties of double-side friction stir welded 6082Al ultra-thick plates [J]. J. Mater. Sci. Technol., 2020, 41(0): 105-116.
[10]	Miao Cao, Qi Zhang, Ke Huang, Xinjian Wang, Botao Chang, Lei Cai. Microstructural evolution and deformation behavior of copper alloy during rheoforging process [J]. J. Mater. Sci. Technol., 2020, 42(0): 17-27.
[11]	Ze-Tian Liu, Bing-Yu Wang, Cheng Wang, Min Zha, Guo-Jun Liu, Zhi-Zheng Yang, Jin-Guo Wang, Jie-Hua Li, Hui-Yuan Wang. Microstructure and mechanical properties of Al-Mg-Si alloy fabricated by a short process based on sub-rapid solidification [J]. J. Mater. Sci. Technol., 2020, 41(0): 178-186.
[12]	Yanfu Chai, Chao He, Bin Jiang, Jie Fu, Zhongtao Jiang, Qingshan Yang, Haoran Sheng, Guangsheng Huang, Dingfei Zhang, Fusheng Pan. Influence of minor Ce additions on the microstructure and mechanical properties of Mg-1.0Sn-0.6Ca alloy [J]. J. Mater. Sci. Technol., 2020, 37(0): 26-37.
[13]	Yinghui Zhou, Xin Lin, Nan Kang, Weidong Huang, Jiang Wang, Zhennan Wang. Influence of travel speed on microstructure and mechanical properties of wire + arc additively manufactured 2219 aluminum alloy [J]. J. Mater. Sci. Technol., 2020, 37(0): 143-153.
[14]	Qiuyan Huang, Yang Liu, Aiyue Zhang, Haoxin Jiang, Hucheng Pan, Xiaohui Feng, Changlin Yang, Tianjiao Luo, Yingju Li, Yuansheng Yang. Age hardening responses of as-extruded Mg-2.5Sn-1.5Ca alloys with a wide range of Al concentration [J]. J. Mater. Sci. Technol., 2020, 38(0): 39-46.
[15]	A.V. Pozdniakov, R.Yu. Barkov. Microstructure and mechanical properties of novel Al-Y-Sc alloys with high thermal stability and electrical conductivity [J]. J. Mater. Sci. Technol., 2020, 36(0): 1-6.

Influence of Phase Constitution on Mechanical Performance of 12Ce-3Y-ZrO2/2.5 wt pct Al2O3 Composites

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments