@article{He2023, 
author = {Hongtian He and Gang Shao and Rui Zhao and Hongyi Tian and Hailong Wang and Bingbing Fan and Hongxia Lu and Hongliang Xu and Rui Zhang and Li-nan An},
title = {Oscillatory pressure-assisted sinter forging for preparation of high-performance SiC whisker reinforced Al2O3 composites},
year = {2023},
journal = {Journal of Advanced Ceramics},
volume = {12},
number = {2},
pages = {321-328},
keywords = {mechanical property, sintering, ceramic composites, densification, oscillatory pressure-assisted sinter forging (OPSF)},
url = {https://www.sciopen.com/article/10.26599/JAC.2023.9220685},
doi = {10.26599/JAC.2023.9220685},
abstract = {In this work, a novel process, oscillatory pressure-assisted sinter forging (OPSF), for the preparation of high-performance ceramic composites was reported. Compared with the samples made by conventional sinter forging (SF) and hot oscillatory pressing (HOP), the SiC whisker reinforced Al2O3 composites (SiCw–Al2O3) prepared by OPSF at the same temperature exhibited a higher density and significantly improved the mechanical properties. The improvements in densification and performance are attributed to simultaneous enhanced shear deformation at both macro- and micro-scales, resulting from the combination of die-free configuration and oscillatory pressure of OPSF. And the strength of grain boundary is greatly increased when the temperature reaches 1600 ℃ of OPSF, due to that the grain-boundary sliding became pronounced at higher temperatures. The current results shed light on a powerful technique for preparing ceramic composites, which is likely applicable to other systems.}
}