Journal of Inorganic Materials, Volume. 38, Issue 11, 1364(2023)
Figures & Tables(9)
2. High temperature resistivities of LGT and LGAT crystals in different atmospheres
Table 1. Activation energy of LGT and LGAT crystal in different atmospheres
View tableView in ArticleTable 1. Activation energy of LGT and LGAT crystal in different atmospheres
Atmosphere T /℃ Ea(LGT)/eV Ea(LGAT)/eV Oxygen 400-500 1.14 0.99 525-650 1.05 Nitrogen 400-550 1.0 0.95 550-700 1.36 1.26 Argon 400-700 0.84 0.91
Table 2. Clamping dielectric constant of LGT crystal
View tableView in ArticleTable 2. Clamping dielectric constant of LGT crystal
T/℃ $\varepsilon _{11}^{\text{S}}/{{\varepsilon }_{0}}$ $\varepsilon _{33}^{\text{S}}/{{\varepsilon }_{0}}$ 20 18.6 75.9 400 19.8 59.7
Table 3. Inversion results of LGT crystal elasticity and piezoelectric coefficient
View tableView in ArticleTable 3. Inversion results of LGT crystal elasticity and piezoelectric coefficient
T/℃ Elastic coefficient/(×1010, N·m-2) Piezoelectric coefficient/(C·m-2) $c_{11}^{\text{E}}$ $c_{12}^{\text{E}}$ $\text{ }\!\!~\!\!\text{ }c_{13}^{\text{E}}$ $c_{14}^{\text{E}}$ $c_{33}^{\text{E}}$ $c_{44}^{\text{E}}$ ${{e}_{11}}$ ${{e}_{14}}$ 20 18.586 10.524 9.785 1.353 26.003 5.093 -0.439 0.123 400 18.346 10.314 9.694 1.256 25.340 5.056 -0.429 0.209
Table 4. Full matrix material coefficient of LGT crystal at 20 ℃
View tableView in ArticleTable 4. Full matrix material coefficient of LGT crystal at 20 ℃
$c_{ij}^{\text{E}}$ /(×1010, N·m–2)$c_{ij}^{\text{D}}$ /(×1010, N·m–2)$c_{11}^{\text{E}}$ $c_{12}^{\text{E}}$ $c_{13}^{\text{E}}$ $c_{14}^{\text{E}}$ $c_{33}^{\text{E}}$ $c_{44}^{\text{E}}$ $c_{11}^{\text{D}}$ $c_{12}^{\text{D}}$ $c_{\text{13}}^{\text{D}}$ $c_{\text{14}}^{\text{D}}$ $c_{\text{33}}^{\text{D}}$ $c_{\text{44}}^{\text{D}}$ 18.586 10.524 9.785 1.353 26.003 5.093 18.703 10.406 9.785 1.320 26.003 5.102 $s_{ij}^{\text{E}}$ /(×10–12, m2·N–1)$s_{ij}^{\text{D}}$ /(×10–12, m2·N–1)$s_{\text{11}}^{\text{E}}$ $s_{\text{12}}^{\text{E}}$ $s_{\text{13}}^{\text{E}}$ $s_{\text{14}}^{\text{E}}$ $s_{\text{33}}^{\text{E}}$ $s_{\text{44}}^{\text{E}}$ $s_{\text{11}}^{\text{D}}$ $s_{\text{12}}^{\text{D}}$ $s_{\text{13}}^{\text{D}}$ $s_{\text{14}}^{\text{D}}$ $s_{\text{33}}^{\text{D}}$ $s_{\text{44}}^{\text{D}}$ 9.108 -4.509 -1.731 -3.617 5.148 21.56 8.866 -4.268 -1.731 -3.397 5.148 21.36 ${{e}_{ij}}$ /(C·m–2)${{d}_{ij}}$ /(×10–12, C·N–1)${{e}_{11}}$ ${{e}_{14}}$ ${{d}_{11}}$ ${{d}_{14}}$ -0.439 0.123 -6.43 5.83 ${{g}_{ij}}$ /(×10–2,${{\text{V}}_{m}}$ ·N–1)${{h}_{ij}}$ /(×108, V·m–1)${{g}_{11}}$ ${{g}_{14}}$ ${{h}_{11}}$ ${{h}_{14}}$ -3.903 3.543 -26.67 7.482 $\varepsilon _{ij}^{\text{T}}$ (ε0)$\varepsilon _{ij}^{\text{S}}$ (ε0)$\beta _{ij}^{\text{T}}$ (×10–4 /ε0)$\beta _{ij}^{\text{S}}$ (×10–4/ε0)$\varepsilon _{\text{11}}^{\text{T}}$ $\varepsilon _{\text{33}}^{\text{T}}$ $\varepsilon _{\text{11}}^{\text{S}}$ $\varepsilon _{\text{33}}^{\text{S}}$ $\beta \ _{\text{11}}^{\text{T}}$ $\beta _{\text{33}}^{\text{T}}$ $\beta \ _{\text{11}}^{\text{S}}$ $\beta _{\text{33}}^{\text{S}}$ 19.3 75.9 18.6 75.9 518 132 538 132
Table 5. Full matrix material coefficient of LGT crystal at 400 ℃
View tableView in ArticleTable 5. Full matrix material coefficient of LGT crystal at 400 ℃
$c_{ij}^{\text{E}}$ /(×1010, N·m–2)$c_{ij}^{\text{D}}$ /(×1010, N·m–2)$c_{\text{11}}^{\text{E}}$ $c_{\text{12}}^{\text{E}}$ $c_{\text{13}}^{\text{E}}$ $c_{\text{14}}^{\text{E}}$ $c_{\text{33}}^{\text{E}}$ $c_{\text{44}}^{\text{E}}$ $c_{\text{11}}^{\text{D}}$ $c_{\text{12}}^{\text{D}}$ $c_{\text{13}}^{\text{D}}$ $c_{\text{14}}^{\text{D}}$ $c_{\text{33}}^{\text{D}}$ $c_{\text{44}}^{\text{D}}$ 18.346 10.314 9.694 1.256 25.340 5.056 18.451 10.209 9.694 1.205 25.340 5.081 $s_{ij}^{\text{E}}$ /(×10-12, m2·N–1)$s_{ij}^{\text{D}}$ /(×10-12, m2·N–1)$s_{\text{11}}^{\text{E}}$ $s_{\text{12}}^{\text{E}}$ $s_{\text{13}}^{\text{E}}$ $s_{\text{14}}^{\text{E}}$ $s_{\text{33}}^{\text{E}}$ $s_{\text{44}}^{\text{E}}$ $s_{\text{11}}^{\text{D}}$ $s_{\text{12}}^{\text{D}}$ $s_{\text{13}}^{\text{D}}$ $s_{\text{14}}^{\text{D}}$ $s_{\text{33}}^{\text{D}}$ $s_{\text{44}}^{\text{D}}$ 9.103 -4.396 -1.801 -3.353 5.324 21.44 8.873 -4.165 -1.801 -3.092 5.324 21.15 ${{e}_{ij}}$ /(C·m–2)${{d}_{ij}}$ /(×10–12, C·N–1)e11 e14 d11 d14 -0.429 0.209 -6.48 7.34 ${{g}_{ij}}$ /(×10–2,${{\text{V}}_{m}}$ ·N–1)${{h}_{ij}}$ /(×108, V·m–1)g11 g14 h11 h14 -3.699 4.190 -24.45 11.89 $\varepsilon _{ij}^{\text{T}}$ (ε0)$\varepsilon _{ij}^{\text{S}}$ (ε0)$\beta _{ij}^{\text{T}}$ (×10–4/ε0)$\beta _{ij}^{\text{S}}$ (×10–4/ε0)$\varepsilon _{11}^{\text{T}}$ $\varepsilon _{33}^{\text{T}}$ $\varepsilon _{11}^{\text{S}}$ $\varepsilon _{33}^{\text{S}}$ $\beta _{11}^{\text{T}}$ $\beta _{33}^{\text{T}}$ $\beta \ _{11}^{\text{S}}$ $\beta _{33}^{\text{S}}$ 20.6 59.7 19.8 59.7 485 168 505 168
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Maoxin SU, Xinchen LI, Kainan XIONG, Sheng WANG, Yunlin CHEN, Xiaoniu TU, Erwei SHI.
Paper Information
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Received: Feb. 28, 2023
Accepted: --
Published Online: Mar. 6, 2024
The Author Email: CHEN Yunlin (ylchen@bjtu.edu.cn), TU Xiaoniu (xiaoniu_tu@mail.sic.ac.cn)
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