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Research Article
Mei Zhang
University of Science and Technology Beijing
Corresponding Author
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This work is licensed under a CC BY 4.0 License. Read Full License
MgAlON-MgO ceramic was in-situ synthesized at 1600℃ from spent MgO-C brick by pressureless sintering towards friction material and refractory applications, respectively. The flexural strength of MgAlON-MgO ceramic reaches as high as 172MPa with 11.1% utilization ratio of spent MgO-C brick. Moreover, MgAlON-MgO ceramic still has a good flexural strength up to 46MPa when utilization ratio of spent MgO-C brick increases to 52.9%. The impurities introduced by the spent brick distribute in MgAlON-MgO ceramic in the form of CaMgSiO4 and MgFe2O4. CaMgSiO4 increases the density of MgAlON-MgO ceramic and subsequently enhance its flexural strength, while MgFe2O4 has no more obvious effect on those of the ceramic. Hence, MgAlON-MgO ceramic with different strength can be controllably prepared by simply adjusting utilization ratio of spent MgO-C brick, which maybe use as the friction material and refractory.
Keywords
Spent MgO-C brick, MgAlON-MgO, Friction material, Refractory, Impurity
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This is a preprint. It has not completed peer review.
Research Article
Mei Zhang
University of Science and Technology Beijing
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 18 Mar, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
MgAlON-MgO ceramic was in-situ synthesized at 1600℃ from spent MgO-C brick by pressureless sintering towards friction material and refractory applications, respectively. The flexural strength of MgAlON-MgO ceramic reaches as high as 172MPa with 11.1% utilization ratio of spent MgO-C brick. Moreover, MgAlON-MgO ceramic still has a good flexural strength up to 46MPa when utilization ratio of spent MgO-C brick increases to 52.9%. The impurities introduced by the spent brick distribute in MgAlON-MgO ceramic in the form of CaMgSiO4 and MgFe2O4. CaMgSiO4 increases the density of MgAlON-MgO ceramic and subsequently enhance its flexural strength, while MgFe2O4 has no more obvious effect on those of the ceramic. Hence, MgAlON-MgO ceramic with different strength can be controllably prepared by simply adjusting utilization ratio of spent MgO-C brick, which maybe use as the friction material and refractory.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
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