Small-angle Al2O3 grain boundaries achieve ultralow oxygen diffusion

Al2O3 is extensively utilized as an oxidant barrier in aeroengines and gas turbines at elevated temperatures, and small-angle grain boundaries significantly reduce its oxygen permeation. However, experimentally observing and regulating these small-angle grain boundaries poses considerable challenges...

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Bibliographic Details
Main Authors: Wen-Jing Wang, Chao Li, Hong-Xu Zhang, Guan-Jun Yang, Lin Chen
Format: Article
Language:English
Published: Tsinghua University Press 2025-07-01
Series:Journal of Advanced Ceramics
Subjects:
Online Access:https://www.sciopen.com/article/10.26599/JAC.2025.9221109
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