Jiatong ZHU, Zhihao LOU, Ping ZHANG, Jia ZHAO, Xuanyu MENG, Jie XU, Feng GAO. Preparation and Thermal Properties of Rare Earth Tantalates (RETaO4) High-Entropy Ceramics [J]. Journal of Inorganic Materials, 2021, 36(4): 411
- Journal of Inorganic Materials
- Vol. 36, Issue 4, 411 (2021)
1. XRD patterns of high-entropy RETaO4 ceramics after sintering at 1500 ℃ for 10 h
2. Raman spectra of high-entropy RETaO4 ceramics
3. STEM-EDS of high-entropy tantalates
4. SAED patterns of (a1) 4RETaO4, (b1) 5RETaO4 and (c1) 6RETaO4; HRTEM images of (a2) 4RETaO4, (b2) 5RETaO4 and (c2) 6RETaO4
5. Schematic diagram of 5RETaO4 crystal structure
6. SEM images of high-entropy tantalates
7. Thermal expansion of high-entropy RETaO4
8. Thermal properties of high-entropy RETaO4
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Table 1. Theoretical density, experimental density, porosity, and average grain size of high-entropy tantalates
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Table 2. Detail structure information of high-entropy RETaO4 ceramics and the average radii of doped rare-earth ions
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Table 3. HV hardness of high-entropy tantalates
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Table 4. Thermal conductivity of 6RETaO4, single rare earth tantalates, and YSZ (100-900 ℃)
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