Fabrication of highly transparent AlON ceramics by inhibiting decomposition of AlON

Shan, Yingchun; Xi, Xuemin; Ma, Liya; Guo, Haoran; Han, Xiaoguang; Li, Jiangtao; Xu, Jiujun

doi:10.1016/j.ceramint.2024.01.388

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.01.388

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Fabrication of highly transparent AlON ceramics by inhibiting decomposition of AlON

Yingchun Shan,

Xuemin Xi,

Liya Ma

et al.

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2024

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Cited by 2 publications

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Fabrication of high transmittance AlON ceramics by three-step pressureless sintering

Zhu,

Zhou,

Huo

et al. 2024

Journal of Materials Research and Technology

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Fabrication of high transmittance AlON ceramics by three-step pressureless sintering

Zhu,

Zhou,

Huo

et al. 2024

Journal of Materials Research and Technology

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Novel synthesis of fine γ-AlON powders from the hydrolysis of Al metal

Yang,

Han,

et al. 2024

Journal of Advanced Ceramics

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：In this study, fine aluminum oxynitride (γ-AlON) powder was synthesized by solid-state hydrolysis byproduct for the first time, through the in-depth research of the hydrolysis of metal Al powder. It was found that hydrolysis begins on the surface of the Al particles, the initial solid-state hydrolysis byproduct is AlOOH and then Al(OH)3, and during the reaction stage, a unique core-shell structure with hollow outer core composite precursor is formed. Pure phase AlON powder can be synthesized by utilizing a composite precursor with an appropriate Al2O3/Al ratio (Al2O3/Al=10.27) J u s t A c c e p t e d 2 under a flowing N2 atmosphere. The core-shell structure shortens the diffusion distance between raw materials and reduces the nitridation temperature (1700°C). Furthermore, the unique hollow structure composite precursor makes some of the synthesized AlON powders also have a hollow structure, which is conducive to powder crushing, and fine nanoscale (D50=292 nm) powders can be obtained only grinding process. The combination of Al-H2O reaction and direct nitridation method has developed a new synthesis method of AlON powder, and also provides a new way for the recovery of solid-state hydrolysis byproduct of metal Al powder.

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Fabrication of highly transparent AlON ceramics by inhibiting decomposition of AlON

Cited by 2 publications

References 43 publications

Fabrication of high transmittance AlON ceramics by three-step pressureless sintering

Fabrication of high transmittance AlON ceramics by three-step pressureless sintering

Novel synthesis of fine γ-AlON powders from the hydrolysis of Al metal

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