期刊
CORROSION SCIENCE
卷 204, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2022.110404
关键词
Selective laser sintering; Ablation performance; Si3N4
资金
- National Natural Science Foundation of China [51875222]
This study successfully prepared a Si3N4 radome with high-temperature ablation performance using selective laser sintering (SLS), and found that cold isostatic pressing improved the high-temperature ablation resistance of SLS-processed Si3N4-Si2N2O-BN ceramics.
In this study, a Si3N4 radome with high-temperature ablation performance was successfully prepared using selective laser sintering (SLS). The results showed that cold isostatic pressing was beneficial for the densification of SLS-processed Si3N4-Si2N2O-BN ceramics and improved their high-temperature ablation resistance. The sintering aids formed a glass phase that covered the surface of the Si3N4 ceramics, effectively preventing further ablation. The mass ablation rate and linear ablation rate were 0.6 mg/s and 0.5 mu m/s, respectively. This work combines the advantages of additive manufacturing with the adjustable performance of composites.
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