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説明:

Formation of nano-twinned domains associated with ferro-elastic transformation in 2 mol.% ZrO2 alloyed YTaO4 has been investigated using a correlative microscopy approach. Transmission Kikuchi diffraction reveals the presence of two phases, monoclinic (M) and tetragonal (T) in the material sintered at 1485 ◦C for 3 hr. The microstructure comprises of alternate nano-twinned domains with an average spacing of 154.07 ± 42.52 nm. Crystallographic symmetry based spontaneous strain analyses support the observation of single domain state. Abinitio calculations further indicate the propensity of stabilizing both M and T phases at room temperature as a function of ZrO2 alloying, without any change in chemical composition, as is evidenced by atom probe tomography.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: Correlative microscopy, Ferroelastic transformation, Nanotwins, transmission Kikuchi diffraction, atom probe tomography

刊行年月日: 2022-02-09

出版者: Elsevier

掲載誌:

• Scripta Materialia (ISSN: 03048853) vol. 212 114584

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4630

公開URL: https://doi.org/10.1016/j.scriptamat.2022.114584

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更新時刻: 2024-10-08 11:52:48 +0900

MDRでの公開時刻: 2024-08-06 12:30:26 +0900