China's Refractories ›› 2021, Vol. 30 ›› Issue (4): 30-35.DOI: 10.19691/j.cnki.1004-4493.2021.04.006
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HAN Xiaoyuan, SHI Kai, XIA Yi, WANG Peixun, LIU Yang, SHANG Jianzhao
Online:
2021-12-15
Published:
2021-12-10
About author:
Han Xiaoyuan, born in 1995, is studying for her master’s degree in the School of Materials Science and Engineering, Henan University of Technology. Her main research field is MgO-C materials.
HAN Xiaoyuan, SHI Kai, XIA Yi, WANG Peixun, LIU Yang, SHANG Jianzhao. Effects of Three Silicon-based Raw Materials on Properties and Microstructure of MgO-Al-C Materials[J]. China's Refractories, 2021, 30(4): 30-35.
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URL: http://www.cnref.cn/EN/10.19691/j.cnki.1004-4493.2021.04.006
Raw materials | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 | |
---|---|---|---|---|---|---|---|---|---|---|---|
98 sintered magnesia | 3-1 mm | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
98 fused magnesia | 1-0 mm | 15 | 13 | 11 | 9 | 13 | 11 | 9 | 10 | 5 | 0 |
≤0.074 mm | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | |
Si | 0.5-0.2 mm | 0 | 2 | 4 | 6 | 0 | 0 | 0 | 0 | 0 | 0 |
Fused quartz | 0.4-0.2 mm | 0 | 0 | 0 | 0 | 2 | 4 | 6 | 0 | 0 | 0 |
SiC | 1-0 mm | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 15 |
Al powder | ≤0.045 mm | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Carbon black N220 | 25-20 nm | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Thermoset phenolic resin (extra adding) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Table 1 Formulations of samples /mass%
Raw materials | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 | |
---|---|---|---|---|---|---|---|---|---|---|---|
98 sintered magnesia | 3-1 mm | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
98 fused magnesia | 1-0 mm | 15 | 13 | 11 | 9 | 13 | 11 | 9 | 10 | 5 | 0 |
≤0.074 mm | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | |
Si | 0.5-0.2 mm | 0 | 2 | 4 | 6 | 0 | 0 | 0 | 0 | 0 | 0 |
Fused quartz | 0.4-0.2 mm | 0 | 0 | 0 | 0 | 2 | 4 | 6 | 0 | 0 | 0 |
SiC | 1-0 mm | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 15 |
Al powder | ≤0.045 mm | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Carbon black N220 | 25-20 nm | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Thermoset phenolic resin (extra adding) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Samples | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
---|---|---|---|---|---|---|---|---|---|---|
CMOR | 14.5 | 17.3 | 15.9 | 16.1 | 14.6 | 13.4 | 12.9 | 14.7 | 19.1 | 17.9 |
HMOR | 26.5 | 30.6 | 30.3 | 31.0 | 27.9 | 20.6 | 18.3 | 29.2 | 27.9 | 28.2 |
Table 2 Modulus of rupture of samples /MPa
Samples | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
---|---|---|---|---|---|---|---|---|---|---|
CMOR | 14.5 | 17.3 | 15.9 | 16.1 | 14.6 | 13.4 | 12.9 | 14.7 | 19.1 | 17.9 |
HMOR | 26.5 | 30.6 | 30.3 | 31.0 | 27.9 | 20.6 | 18.3 | 29.2 | 27.9 | 28.2 |
Samples | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
---|---|---|---|---|---|---|---|---|---|---|
Thickness of oxidation layer /mm | 1.71 | 1.70 | 1.66 | 1.58 | 1.76 | 2.12 | 2.38 | 1.68 | 1.60 | 1.62 |
Table 3 Oxidation resistance of samples
Samples | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
---|---|---|---|---|---|---|---|---|---|---|
Thickness of oxidation layer /mm | 1.71 | 1.70 | 1.66 | 1.58 | 1.76 | 2.12 | 2.38 | 1.68 | 1.60 | 1.62 |
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