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Microstructures and Properties of Ceramic Fibers of h-BN Containing Amorphous Si3N4

文献类型：期刊论文

作者Tan, Jing1,2; Ge, Min2; Yu, Shouquan2; Lu, Zhenxi1,2; Zhang, Weigang1,2
刊名MATERIALS
出版日期2019-12-01
卷号12期号:23页码:9
关键词polymer-derived ceramics fibers boron nitride silicon nitride
DOI10.3390/ma12233812
英文摘要Composite ceramic fibers comprising about 80 wt% boron nitride (h-BN) and 20 wt% Si3N4 were fabricated through melt-spinning, electron-beam curing, and pyrolysis up to 1600 degrees C in atmospheres of NH3 and N-2, using a mixture of poly[tri(methylamino)borazine] (PBN) and polysilazane (PSZ). By analyzing the microstructure and composition of the pyrolyzed ceramic fibers, we found the formation of binary phases including crystalline h-BN and amorphous Si3N4. Further investigations confirmed that this heterogeneous microstructure can only be formed when the introduced ratio of Si3N4 is below 30% in mass. The mean modulus and tensile strength of the fabricated composite fibers were about 90 GPa and 1040 MPa, twice the average of the pure h-BN fiber. The dielectric constant and dielectric loss tangent of the composite fibers is 3.06 and 2.94 x 10(-3).
WOS关键词PRECURSOR INFILTRATION ; NITRIDE ; COMPOSITES
资助项目Chinese Academy of Sciences ; National Natural Science Foundation of China[51472243] ; National Natural Science Foundation of China[51272251] ; Advance Research Fund[61409220401]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000510178700008
出版者MDPI
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China ; Advance Research Fund
源URL[http://ir.ipe.ac.cn/handle/122111/39172]  
专题中国科学院过程工程研究所
通讯作者Zhang, Weigang
作者单位1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Tan, Jing,Ge, Min,Yu, Shouquan,et al. Microstructures and Properties of Ceramic Fibers of h-BN Containing Amorphous Si3N4[J]. MATERIALS,2019,12(23):9.
APA Tan, Jing,Ge, Min,Yu, Shouquan,Lu, Zhenxi,&Zhang, Weigang.(2019).Microstructures and Properties of Ceramic Fibers of h-BN Containing Amorphous Si3N4.MATERIALS,12(23),9.
MLA Tan, Jing,et al."Microstructures and Properties of Ceramic Fibers of h-BN Containing Amorphous Si3N4".MATERIALS 12.23(2019):9.

入库方式： OAI收割

来源：过程工程研究所

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