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Advances in Manufacturing

Holistic high-temperature assistance for laser directed energy deposition of Al2O3/ZrO2 eutectic ceramics: cracking behavior

  • 04-11-2025
Authors
Dong-Jiang Wu
Cheng-Xin Li
Ming-Ze Xu
Xue-Xin Yu
Guang-Yi Ma
Huan-Yue Zhang
Cong Zhou
Bi Zhang
Fang-Yong Niu
Published in
Advances in Manufacturing

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Abstract

This article delves into the challenges of cracking in laser-directed energy deposition (LDED) of Al2O3/ZrO2 eutectic ceramics, a promising material for high-temperature applications in aerospace and gas turbines. The study explores the use of holistic high-temperature assistance to mitigate cracking, a significant issue in the fabrication of ceramic components. Through experiments and finite element simulations, the effects of various auxiliary temperatures on cracking behavior are investigated, analyzing temperature and stress fields to understand the evolution of crack defects. The article also examines the microstructural morphology and stress distribution characteristics in relation to changes in auxiliary temperature. A key finding is the establishment of a correlation between auxiliary temperature and sample cracking characteristics, clarifying the mechanism by which high-temperature assistance mitigates cracking. The study highlights the advantages of LDED, such as its ability to fabricate complex geometric samples without molds and its flexible material composition design. The research provides valuable insights into optimizing the LDED process for ceramic materials, addressing the shortcomings of traditional manufacturing processes and directional solidification techniques.
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Title
Holistic high-temperature assistance for laser directed energy deposition of Al2O3/ZrO2 eutectic ceramics: cracking behavior
Authors
Dong-Jiang Wu
Cheng-Xin Li
Ming-Ze Xu
Xue-Xin Yu
Guang-Yi Ma
Huan-Yue Zhang
Cong Zhou
Bi Zhang
Fang-Yong Niu
Publication date
04-11-2025
Publisher
Shanghai University
Published in
Advances in Manufacturing
Print ISSN: 2095-3127
Electronic ISSN: 2195-3597
DOI
https://doi.org/10.1007/s40436-025-00572-x
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