Journal of Inorganic Materials ›› 2023, Vol. 38 ›› Issue (5): 569-576.DOI: 10.15541/jim20220548
• RESEARCH ARTICLE • Previous Articles Next Articles
WU Shuang(), GOU Yanzi(), WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde()
Received:
2022-09-19
Revised:
2022-11-10
Published:
2022-11-16
Online:
2022-11-16
Contact:
GOU Yanzi, associate professor. E-mail: y.gou2012@hotmail.com;About author:
WU Shuang(1996-), female, PhD candidate. E-mail: alanwu37@163.com
Supported by:
CLC Number:
WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers[J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.
Parameter | F-II | F-II-1800 ℃ | F-III | F-III-1800 ℃ |
---|---|---|---|---|
C/Si | 1.34 | 1.42 | 1.08 | 1.08 |
Al content/ (%, in mass) | / | / | <1.00 | <1.00 |
O content/ (%, in mass) | 0.98 | 0.53 | 0.07 | 0.05 |
Diameter/μm | 12.0 | 11.9 | 9.9 | 9.9 |
Density/ (g·cm-3) | 2.72 | 2.66 | 3.08 | 3.09 |
Tensile strength/ GPa | 2.7 | 0.9 | 1.8 | 1.8 |
Elastic modulus/GPa | 260 | 207 | 372 | 366 |
Table 1 Composition and general properties of SiC fibers before and after heat treatment
Parameter | F-II | F-II-1800 ℃ | F-III | F-III-1800 ℃ |
---|---|---|---|---|
C/Si | 1.34 | 1.42 | 1.08 | 1.08 |
Al content/ (%, in mass) | / | / | <1.00 | <1.00 |
O content/ (%, in mass) | 0.98 | 0.53 | 0.07 | 0.05 |
Diameter/μm | 12.0 | 11.9 | 9.9 | 9.9 |
Density/ (g·cm-3) | 2.72 | 2.66 | 3.08 | 3.09 |
Tensile strength/ GPa | 2.7 | 0.9 | 1.8 | 1.8 |
Elastic modulus/GPa | 260 | 207 | 372 | 366 |
Sample | D Band | G Band | ID/IG | La/nm | ||
---|---|---|---|---|---|---|
Position/cm-1 | FWHM | Position/cm-1 | FWHM | |||
F-II | 1356.3 | 112.5 | 1599.8 | 122.7 | 1.39 | 13.8 |
F-II-1800 ℃ | 1351.3 | 59.9 | 1586.8 | 63.2 | 1.09 | 17.6 |
F-III | 1352.9 | 79.9 | 1590.1 | 89.0 | 1.12 | 17.2 |
F-III-1800 ℃ | 1354.3 | 64.9 | 1593.0 | 72.8 | 1.18 | 16.3 |
Table 2 Raman characteristics of free carbon phase of the fibers
Sample | D Band | G Band | ID/IG | La/nm | ||
---|---|---|---|---|---|---|
Position/cm-1 | FWHM | Position/cm-1 | FWHM | |||
F-II | 1356.3 | 112.5 | 1599.8 | 122.7 | 1.39 | 13.8 |
F-II-1800 ℃ | 1351.3 | 59.9 | 1586.8 | 63.2 | 1.09 | 17.6 |
F-III | 1352.9 | 79.9 | 1590.1 | 89.0 | 1.12 | 17.2 |
F-III-1800 ℃ | 1354.3 | 64.9 | 1593.0 | 72.8 | 1.18 | 16.3 |
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