Journal of Inorganic Materials, Volume. 38, Issue 7, 839(2023)
Figures & Tables(10)
2. Measured COD plotted versus the calculated COD(a) PZT-4; (b) PZT-5; (c) PZT-8
3. Stress-strain curves of PZT obtained during mechanical compression(a) PZT-4; (b) PZT-5; (c) PZT-8
4. Fracture toughness ${{K}_{Ivnb}}$ and intrinsic fracture toughness ${{K}_{I0}}$ for PZT-4, -5, and -8
5. Illustration of the toughening mechanism(a) PZT-4 and PZT-5; (b) PZT-8
S1. COD profiles for (a) PZT-4, (b) PZT-5, and (c) PZT-8The Irwin parabola is represented by the red line
S3. Crack propagates along a grain boundary(a)With direction parallel to the main crack; (b) With an angle of θ to the main crack
Table 1.
Microstructural properties of the investigated materials
View tableView in ArticleTable 1.
Microstructural properties of the investigated materials
Material Density /(g·cm-3) Grain size/μm PZT-4 7.7 (2.5±0.5) PZT-5 7.8 (5.0±0.5) PZT-8 7.6 (2.5±0.5)
Table 2.
Determined values of
${{\sigma }_{c}}$ ,${{\varepsilon }_{r}}$ ,${{E}_{\mathbf{initial}}}$ ,${{E}_{\mathbf{unloading}}}$ ,${{\nu }_{\mathbf{initial}}}$ , and${{\nu }_{\mathbf{unloading}}}$ View tableView in ArticleTable 2.
Determined values of
${{\sigma }_{c}}$ ,${{\varepsilon }_{r}}$ ,${{E}_{\mathbf{initial}}}$ ,${{E}_{\mathbf{unloading}}}$ ,${{\nu }_{\mathbf{initial}}}$ , and${{\nu }_{\mathbf{unloading}}}$ Material ${{\sigma }_{c}}$ /MPa${{\varepsilon }_{r}}$ /%${{E}_{\text{initial}}}$ /GPa ${{E}_{\text{unloading}}}$ /GPa ${{\nu }_{\text{initial}}}$ ${{\nu }_{\text{unloading}}}$ PZT-4 120 0.18 73 154 0.4 0.35 PZT-5 55 0.32 53 131 0.33 0.33 PZT-8 170 0 58 114 0.12 0.27
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Xueyao WANG, Wugang WANG, Yingwei LI, Qi PENG, Ruihong LIANG.
Paper Information
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Received: Oct. 31, 2022
Accepted: --
Published Online: Dec. 28, 2023
The Author Email: LI Yingwei (yingweili@whu.edu.cn), LIANG Ruihong (liangruihong@mail.sic.ac.c)
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