2000 Fiscal Year Final Research Report Summary
Study of Ionic Configuration and Reactivity of Slag Used for Iron and Steel Making by Measurement of EPMA Spectrum and Its Molecular orbital Calculation
| Project/Area Number |
10650736
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | Himeji Institute of Technology |
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Principal Investigator |
MORISHITA Masao Himeji Inst.Tech.Dept.of Materials Sci.& Eng.Assist.Prof., 工学部, 講師 (60244696)
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| Co-Investigator(Kenkyū-buntansha) |
KOYAMA Koichiro Himeji Inst.Tech.Dept.of Materials Sci.& Eng.Prof., 工学部, 教授 (60047595)
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| Project Period (FY) |
1998 – 2000
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| Keywords | slag / SiO_2-CaO / molecular orbital calculation / Si K_β specrum / O K_α spectrum / content / density of states / basicity |
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| Research Abstract |
Si K_β and O K_α X-ray emission spectra of SiO_2-CaO binary slags simulated by theDV-Xα molecular orbital calculation were compared with ones measured by EPMA.The composition of the slag has been incorporated in the calculation of the Si_<3p> and O_<2p> partial density of states (PDOS). The calculated Si_<3p> and O_<2p> PDOS as a function of the CaO content agreed well with the measured Si K_β and O K_α X-ray emission spectra of the glassy state 62.4mol%SiO_2-37.6mol%CaO and 43.3mol%SiO_2-56.7mol%CaO binary slags. The present method was found to provide a useful means of clarifying the change in ionic configuration of the slag with metal oxide content, and also of understanding the concept of basicity.
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