Stress-Induced Martensitic Transformation in Na 3 YCl 6

Martensitic transformation with volume expansion plays a crucial role in enhancing the mechanical properties of steel and partially stabilized zirconia. We believe that a similar concept could be applied to unexplored nonoxide materials. Herein, we report the stress-induced martensitic transformatio...

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Published in:Journal of the American Chemical Society 2024-09, Vol.146 (36), p.25263-25269
Main Authors: Miura, Akira, Muraoka, Koki, Maki, Kotaro, Kawaguchi, Saori, Hikima, Kazuhiro, Muto, Hiroyuki, Matsuda, Atsunori, Yamane, Ichiro, Shimada, Toshihiro, Ito, Hiroaki, Mizuguchi, Yoshikazu, Moriyoshi, Chikako, Nakajima, Hiroshi, Mori, Shigeo, Oike, Hiroshi, Nakayama, Akira, Sun, Wenhao, Rosero-Navarro, Nataly Carolina, Tadanaga, Kiyoharu
Format: Article
Language:English
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Summary:Martensitic transformation with volume expansion plays a crucial role in enhancing the mechanical properties of steel and partially stabilized zirconia. We believe that a similar concept could be applied to unexplored nonoxide materials. Herein, we report the stress-induced martensitic transformation of monoclinic Na YCl with an ∼3.4% expansion. In situ synchrotron X-ray diffraction and atomistic simulations showed that anisotropic crystallographic transformation from monoclinic to rhombohedral Na YCl occurs exclusively under uniaxial pressure; no effect is observed under hydrostatic pressure conditions. The uniaxially pressed powder compact of monoclinic Na YCl showed a large indentation impression and low Young's modulus, in contrast to its high bulk modulus, suggesting that these unique mechanical properties are induced by the martensitic transformation.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.4c09476