• Journal of Inorganic Materials
  • Vol. 36, Issue 4, 372 (2021)
Fengnian ZHANG, Meng GUO, Yang MIAO*, Feng GAO, Chufei CHENG, Fuhao CHENG, and Yufeng LIU
Author Affiliations
  • College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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    DOI: 10.15541/jim20200374 Cite this Article
    Fengnian ZHANG, Meng GUO, Yang MIAO, Feng GAO, Chufei CHENG, Fuhao CHENG, Yufeng LIU. Preparation and Sintering Behavior of High Entropy Ceramic (Zr1/7Hf1/7Ce1/7Y2/7La2/7)O2-δ[J]. Journal of Inorganic Materials, 2021, 36(4): 372 Copy Citation Text show less
    (a) Calcining process of raw materials and (b) XRD patterns of raw material A calcined at different temperatures
    1. (a) Calcining process of raw materials and (b) XRD patterns of raw material A calcined at different temperatures
    XRD pattern together with Rietveld fits of the ZHCYLO sintered at 1600 ℃
    2. XRD pattern together with Rietveld fits of the ZHCYLO sintered at 1600 ℃
    XRD patterns of ZHCYLO annealed at different temperatures
    3. XRD patterns of ZHCYLO annealed at different temperatures
    SEM-EDS images of ZHCYLO sintered at 1600 ℃ for 1 h
    4. SEM-EDS images of ZHCYLO sintered at 1600 ℃ for 1 h
    TG-DSC curves of raw material A
    5. TG-DSC curves of raw material A
    Particle size distribution of (a) raw material A and (b) B
    6. Particle size distribution of (a) raw material A and (b) B
    (a) Comparation of XRD patterns from raw material A and B; (b) XRD patterns of raw material B sintered at different temperatures
    7. (a) Comparation of XRD patterns from raw material A and B; (b) XRD patterns of raw material B sintered at different temperatures
    Digital camera photographs of different pellets sintered at different temperatures and temper ature/linear shrinkage of different pellets as a function of time
    8. Digital camera photographs of different pellets sintered at different temperatures and temper ature/linear shrinkage of different pellets as a function of time
    OxidesCrystalstructureSpace group(number)CNrc /nm
    ZrO2CubicFm-3m (225)80.084
    HfO2MonoclinicP21/c (14)80.083
    CeO2FluoriteFm-3m (225)80.097
    Y2O3BixbyiteIa-3 (206)60.090
    La2O3TrigonalP-3m (164)60.1032
    Table 1. Crystal structures, space groups (number), cation coordination numbers (CN) and corresponding cationic radii (rc) of selected oxides[42]
    SampleProcessBPRSpeed/(r·min-1)Time/hDisperserDesiccationEnergy
    AWet milling6 : 12506Ethanol60 ℃/24 hLow
    BDry milling10 : 140040--High
    Table 2. Process, ball-to-powder-ratio (BPR), speed, time and others for raw material preparation
    Fengnian ZHANG, Meng GUO, Yang MIAO, Feng GAO, Chufei CHENG, Fuhao CHENG, Yufeng LIU. Preparation and Sintering Behavior of High Entropy Ceramic (Zr1/7Hf1/7Ce1/7Y2/7La2/7)O2-δ[J]. Journal of Inorganic Materials, 2021, 36(4): 372
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