Micro/nanostructure constructed by in situ growth of SiC nanowires in porous Si3N4 ceramics

Implant materials with micro/nanostructures bear a closer resemblance with the features of natural bone, which influences the wettability, bone differentiation, and vascularization of materials. However, it is still technically challenging to design the inner wall and surface micro/nanostructures on...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2024-11, Vol.107 (11), p.7619-7628
Main Authors: Zhang, Lizhi, Ma, Wenwen, Ren, Zhongkan, Tang, Huaguo, Yu, Yuan, Wang, Lujie, Li, Tongyang, Qiao, Zhuhui
Format: Article
Language:English
Subjects:
Bioceramics
bone repair
Carbon
Cell adhesion
Chemical synthesis
Decomposition reactions
High temperature
micro/nanostructure
Nanostructure
Nanowires
Porous materials
porous Si3N4 ceramics
Pyrolysis
SiC nanowire
Silicon carbide
Silicon nitride
Surgical implants
Wettability
Whisker composites
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Summary:Implant materials with micro/nanostructures bear a closer resemblance with the features of natural bone, which influences the wettability, bone differentiation, and vascularization of materials. However, it is still technically challenging to design the inner wall and surface micro/nanostructures on macroporous bioceramics due to their brittleness. In this work, micro/nanostructured composites with Si3N4 whiskers as a framework, and the (inner) surface covered with SiC nanowires were prepared, denoted as SiC‐nw@Si3N4‐w bioceramics. The synthesis, adopting the green chemistry concept, was utilized from environmental products (carbon evaporated in the furnace at high temperature) and reaction impurities (carbon obtained by polymer pyrolysis and silicon obtained by Si3N4 decomposition) to synthesize SiC nanowires via a vapor‐solid growth mechanism. The prepared SiC‐nw@Si3N4‐w bioceramics have potential applications in bone repair due to their cell adhesion and proliferation.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.20033