倪德伟,研究员
陶瓷基复合材料课题组
工作电话:021-69906033
电子邮件:deweini@mail.sic.ac.cn
教育经历:
2002-2006 四川大学 材料化学专业 学士学位
2006-2011 中国科学院上海硅酸盐研究所 材料物理与化学专业 博士学位
工作经历:
2011-2013,丹麦技术大学,博士后
2013-2015,丹麦技术大学,Researcher
2016-2018,中国科学院上海硅酸盐研究所,高性能陶瓷和超微结构国家重点实验室,副研究员
2019 -至今,中国科学院上海硅酸盐研究所,高性能陶瓷和超微结构国家重点实验室,特聘研究员/研究员
曾获得奖励、荣誉称号:
国家高层次青年人才计划(2023)
上海市学术/技术带头人(2023)
上海市东方英才(2023)
中科院海外引进杰出人才计划(2018)
IFAM优秀青年科学家奖(2021)
中国硅酸盐学会首届特陶优秀青年奖(2018)
科研工作简介:
超高温陶瓷基复合材料(UHTCMCs)是指以连续纤维为增强体、超高温陶瓷及其复合陶瓷为基体的一大类材料,该类材料具有轻质、非脆性断裂、抗氧化烧蚀等优点,是新型高速飞行器热防护热结构的首选材料,具有重要的科学意义和工程价值。对于高温结构应用,力学性能与抗烧蚀性能是UHTCMCs两大最为关键的性能指标,而如何实现材料力学性能与抗烧蚀性能的协同剪裁优化是UHTCMCs面临的主要问题与挑战。针对上述问题,开展的主要研究工作及取得的成果如下:
1)超高温陶瓷基复合材料纤维/界面损伤与抑制策略:揭示UHTCMCs制备及服役过程中化学反应-物理熔融-应力诱导的超高温陶瓷基复合材料纤维/界面损伤机制;提出纤维/界面损伤隔离防护设计新策略,实现超高温陶瓷基复合材料高强韧,研制的Cf/(ZrB2)-ZrC-SiC材料弯曲强度达~530 MPa,是目前文献公开报道力学性能最优的UHTCMCs之一。
2)超高温陶瓷基复合材料烧蚀行为与机理:系统研究近真实极端服役环境UHTCMCs 氧化烧蚀行为,揭示超高温陶瓷基复合材料烧蚀失效与热损伤关键作用机制;提出稀土元素稳定弥散颗粒粘滞熔体抗烧蚀设计策略,实现材料抗烧蚀性能大幅提升,200 mm量级平板件国内率先通过高马赫/2000s风洞试验考核,近零烧蚀。
3)超高温陶瓷基复合材料高效低成本制备技术:创新材料制备科学,攻克高性能、低成本超高温陶瓷基复合材料技术,成本较常规技术降低~30%,解决材料批量化工程应用成本制约难题,支撑我国新型高速飞行器技术发展。
科研成果:
1) Bowen Chen, Dewei Ni*, Weichao Bao, Chunjing Liao, Wei Luo*, Erhong Song*, Shaoming Dong*, Engineering Cf/ZrB2-SiC-Y2O3 for thermal structures of hypersonic vehicles with excellent long-term ultra-high temperature ablation resistance, Advanced Science, DOI: 10.1002/advs.202304254.
2) Yang Hu, Dewei Ni*, Bowen Chen, Feiyan Cai, Xuegang Zou, Fan Zhang, Yusheng Ding, Xiangyu Zhang, Shaoming Dong*, Cf/(CrZrHfNbTa)C-SiC High-Entropy Ceramic Matrix Composites for Potential Multi-Functional Applications, Journal of Materials Science & Technology, accepted.
3) Xuegang Zou, Dewei Ni*, Bowen Chen, Feiyan Cai, Le Gao, Ping He, Yusheng Ding, Xiangyu Zhang, Shaoming Dong*, Fabrication and mechanical behavior of 2D-Cf/TaxHf1-xC-SiC composites by a low temperature and highly-efficient route, Journal of Advanced Ceramics, doi.org/10.26599/JAC.2023.9220800.
4) Feiyan Cai, Dewei Ni*, Bowen Chen, Xuegang Zou, Chunjing Liao, Le Gao, Ping He, Yusheng Ding, Xiangyu Zhang, Shaoming Dong*, Efficient fabrication and properties of 2D Cf/(Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C-SiC high-entropy ceramic matrix composites via slurry infiltration lamination combined with precursor infiltration and pyrolysis, Journal of the European Ceramic Society, 43 [16] 7403-7410 (2023)
5) Yanyan Qin, Dewei Ni*, Bowen Chen, Jun Lu, Feiyan Cai, Xuegang Zou, Le Gao, Xiangyu Zhang, Yusheng Ding*, Shaoming Dong*, Low-temperature reactive hot-pressing of Ta0.2Hf0.8C-SiC ceramics at 1700 C, Journal of the American Ceramic Society, 106 [7] 4390-4398 (2023).
6) Jun Lu, Dewei Ni*, Bowen Chen, Feiyan Cai, Zou Xuegang, Xiangyu Zhang, Yusheng Ding*, Shaoming Dong*, Ablation behaviour of Csf/ZrB2-SiC composites fabricated by direct ink writing and reactive melt infiltration, Journal of the European Ceramic Society, 43 [8] 3034-3042 (2023).
7) Xuegang Zou, Dewei Ni*, Bowen Chen, Jun Lu, Feiyan Cai, Yanyan Qin, Le Gao, Xiangyu Zhang, Yusheng Ding, Shaoming Dong*, Ablation behavior and mechanisms of 3D-Cf/Ta0.8Hf0.2C-SiC composite at temperatures up to 2500 C, Journal of the European Ceramic Society, 43 [4] 1284-1294 (2023).
8) Feiyan Cai, Dewei Ni*, Weichao Bao, Bowen Chen, Jun Lu, Xuegang Zou, Yanyan Qin, Shaoming Dong*, Ablation behavior and mechanisms of Cf/(Ti0.2Zr0.2Hf0.2 Nb0.2Ta0.2)C-SiC high-entropy ceramic matrix composites, Composites Part B-Engineering, 243: 110184 (2022).
9) Bo-Wen Chen, De-Wei Ni*, Jun Lu, Fei-Yan Cai, Xue-Gang Zou, Yu-Dong Xue, Hai-Jun Zhou, Yu-Sheng Ding*, Shao-Ming Dong*, Microstructure and mechanical behaviors of 2D-Cf/ZrB2-SiC composites at elevated temperatures, Journal of the European Ceramic Society, 42 [13] 5410-5418 (2022).
10) Bo-Wen Chen, De-Wei Ni*, Jun Lu, Fei-Yan Cai, Xue-Gang Zou, Chun-Jing Liao, Hong-Da Wang, Shao-Ming Dong*, Long-term and cyclic ablation behavior of La2O3 modified Cf/ZrB2-SiC composites at 2500 , Corrosion Science, 206: 110538 (2022).
11) Dewei Ni#, Yuan Cheng#, Jiaping Zhang#, Jixuan Liu#, Ji Zou#, Bowen Chen, Haoyang Wu, Hejun Li, Shaoming Dong, Jiecai Han, Xinghong Zhang*, Qiangang Fu*, Guo-Jun Zhang*, Advances in ultra-high temperature ceramics, composites and coatings, Journal of Advanced Ceramics, 11 [1] 1-56 (2022).
详细介绍:
http://www.sic.ac.cn/kybm/kybm3/fhcl/