Biomimetic porous silicon oxycarbide ceramics with improved specific strength and efficient thermal insulation

doi:10.1016/j.jmst.2023.06.006

IMR OpenIR

	Biomimetic porous silicon oxycarbide ceramics with improved specific strength and efficient thermal insulation
	Zhang, Zhuoqing 1,2; Li, Jinghan 3; Cao, Lei 1,2; Shi, Yu 3; Yang, Huajie 1,2; Yang, Rui 1,2; Xie, Fan 4; Zhang, Xing 1,2
通讯作者	Xie, Fan(fanfan.zd@163.com) ; Zhang, Xing(xingzhang@imr.ac.cn)
	2024
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	168 页码:185-193
摘要	Considering the challenge of aerodynamic heating, the development of high-performance insulating ceramic materials with lightweight and low thermal conductivity is crucially important for aerospace vehicles to achieve flight at high speed for a long time. In this work, macro-porous silicon oxycarbide (SiOC) ceramics with directional pores (DP-SiOC) (mean pore size of 88.1 & mu;m) were prepared using polysiloxane precursors via freeze casting and photocrosslinking, followed by pyrolysis. The DP-SiOC samples were lightweight (density & SIM;0.135 g cm -3 ) with a porosity of 90.4%, which showed good shapability through the molding of polysiloxane precursors. The DP-SiOC samples also exhibited an ultra-low thermal conductivity of 0.048 W(m K) -1 at room temperature, which can also withstand heat treatment at 1200 & DEG;C for 1 h. In addition, scaffolds with triply periodic minimal surfaces (TPMS) were fabricated using digital light processing (DLP) printing, which was further filled with polysiloxane precursors for increasing the strength of DP-SiOC. The TPMS scaffolds filled with macro-porous SiOC ceramics (TPMS-DP-SiOC) showed good integration between TPMS and macro-pore structures, which had a porosity & SIM;75% and high specific strength of 9.73 x 10 3 N m kg -1 . The thermal conductivity of TPMS-DP-SiOC samples was 0.255 W(m K) -1 at room temperature. The biomimetic TPMS-DP-SiOC ceramics developed in this study are likely used for thermal protection systems.& COPY; 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Thermal insulation Light weight Macro-porous ceramics SiOC
资助者	CAS Interdisciplinary Inno- vation Team Project ; Chinese Academy of Sciences, China
DOI	10.1016/j.jmst.2023.06.006
收录类别	SCI
语种	英语
资助项目	CAS Interdisciplinary Inno- vation Team Project ; Chinese Academy of Sciences, China ; [JCTD-2020-10]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001053052300001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179072
专题	中国科学院金属研究所
通讯作者	Xie, Fan; Zhang, Xing
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China 4.Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhuoqing,Li, Jinghan,Cao, Lei,et al. Biomimetic porous silicon oxycarbide ceramics with improved specific strength and efficient thermal insulation[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,168:185-193.
APA	Zhang, Zhuoqing.,Li, Jinghan.,Cao, Lei.,Shi, Yu.,Yang, Huajie.,...&Zhang, Xing.(2024).Biomimetic porous silicon oxycarbide ceramics with improved specific strength and efficient thermal insulation.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,168,185-193.
MLA	Zhang, Zhuoqing,et al."Biomimetic porous silicon oxycarbide ceramics with improved specific strength and efficient thermal insulation".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 168(2024):185-193.