Knowledge Management System Of Institute of process engineering,CAS
| Microstructures and Properties of Ceramic Fibers of h-BN Containing Amorphous Si3N4 | |
| Tan, Jing1,2; Ge, Min1; Yu, Shouquan1; Lu, Zhenxi1,2; Zhang, Weigang1,2 | |
| 2019-12-01 | |
| Source Publication | MATERIALS
 |
| Volume | 12Issue:23Pages:9 |
| Abstract | 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). |
| Keyword | polymer-derived ceramics fibers boron nitride silicon nitride |
| DOI | 10.3390/ma12233812 |
| Language | 英语 |
| WOS Keyword | PRECURSOR INFILTRATION ; NITRIDE ; COMPOSITES |
| Funding Project | Chinese Academy of Sciences ; National Natural Science Foundation of China[51472243] ; National Natural Science Foundation of China[51272251] ; Advance Research Fund[61409220401] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| Funding Organization | Chinese Academy of Sciences ; National Natural Science Foundation of China ; Advance Research Fund |
| WOS ID | WOS:000510178700008 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/39173 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Weigang |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| Recommended Citation 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. |
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