Research on preparation of Fe-5%Si porous material and its permeability

Ji Shuai; Yuan Jiale; Liu Zhongjun

doi:10.7513/j.issn.1004-7638.2024.03.024

Volume 45 Issue 3

Jul. 2024

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Ji Shuai, Yuan Jiale, Liu Zhongjun. Research on preparation of Fe-5%Si porous material and its permeability[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 176-181, 187. doi: 10.7513/j.issn.1004-7638.2024.03.024

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Ji Shuai, Yuan Jiale, Liu Zhongjun. Research on preparation of Fe-5%Si porous material and its permeability[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 176-181, 187. doi: 10.7513/j.issn.1004-7638.2024.03.024

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Research on preparation of Fe-5%Si porous material and its permeability

doi: 10.7513/j.issn.1004-7638.2024.03.024

Ji Shuai^{1, 2
,
,},
Yuan Jiale¹,
Liu Zhongjun¹

1.
School of Materials Science and Engineering, Xi’an Shiyou University, Xi’an 710065, Shaanxi , China
2.
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech. University, Nanjing 210009, Jiangsu, China

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Received Date: 2023-09-19
Publish Date: 2024-07-02

Abstract

Abstract

Three groups of the same Fe-5%Si mixed powder were sintered at high temperature at 1050 , 1100 ℃ and 1150 ℃, respectively, and held for 2 h. Metallographic (OM) and scanning (SEM) microstructure observation and XRD phase analysis were performed for each sample, and the gas permeability was tested by self-assembled porous material performance detector. The results show that higher sintering temperature can generate smaller-pore porous material. The film layer will form on the cross section of the sample sintered at 1150 ℃. The cross section of Fe-5%Si porous material is composed of oxides of Fe and Si, and the higher the sintering temperature, the fewer types of oxides. There are SiO₂, Fe₂O₃, FeO and Fe₂O₄ when sintered at 1050 ℃, Fe₃O₄, FeO and SiO₂ at 1100 ℃, and FeO and SiO₂ at 1150℃. The gas flow rate of the sample at 1050 ℃ increases significantly with the increase of ventilation pressure. When the ventilation pressure is 140 kPa, the gas flow rate is about 9200 mL/min. The gas flow rate of samples sintered at 1100 ℃ and 1150 ℃ has little change with the increase of ventilation pressure. When the ventilation pressure is 140 kPa, the gas flow rate of both samples is about 1000 mL/min.
- Fe-5%Si porous material,
- vacuum sintering,
- pore morphology,
- permeability

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References(13)

References

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