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The effects of additives on the intermediate phases of BaCO₂-Fe₂O₃ system were studied. Techniques employed were thermogravimetry, X-ray diffraction analysis, differential thermal analysis, scanning electron microscopy and B-H curve tracer. It ...
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부가정보
다국어 초록 (Multilingual Abstract)
The effects of additives on the intermediate phases of BaCO₂-Fe₂O₃ system were studied. Techniques employed were thermogravimetry, X-ray diffraction analysis, differential thermal analysis, scanning electron microscopy and B-H curve tracer.
It is shown that additives have remakable effects on the formation of intermediate phases (BaO·Fe₂O₃) of BaCO₃ -Fe₂O₃ system and magnetic properties of Ba-ferrite. X-ray diffraction analysis showed that the overall reaction consists of the two consecutive principal reactions ;
BaCO₃+6Fe₂O₃→BaO·Fe₂O₃+5Fe₂O₃+CO₂↑
BaO·Fe₂O₃+5Fe₂O₃→BaO·6Fe₂O₃
Results of DTA analysis also supported the above reaction.
It is shown that additives have remakable effects on the formation of intermediate phases (BaO·Fe₂O₃) of BaCO₃ -Fe₂O₃ system and magnetic properties of Ba-ferrite. X-ray diffraction analysis showed that the overall reaction consists of the two consecutive principal reactions ;
BaCO₃+6Fe₂O₃→BaO·Fe₂O₃+5Fe₂O₃+CO₂↑
BaO·Fe₂O₃+5Fe₂O₃→BaO·6Fe₂O₃
Results of DTA analysis also supported the above reaction.
The effects of additives on the intermediate phases of BaCO₂-Fe₂O₃ system were studied. Techniques employed were thermogravimetry, X-ray diffraction analysis, differential thermal analysis, scanning electron microscopy and B-H curve tracer.
It is shown that additives have remakable effects on the formation of intermediate phases (BaO·Fe₂O₃) of BaCO₃ -Fe₂O₃ system and magnetic properties of Ba-ferrite. X-ray diffraction analysis showed that the overall reaction consists of the two consecutive principal reactions ;
BaCO₃+6Fe₂O₃→BaO·Fe₂O₃+5Fe₂O₃+CO₂↑
BaO·Fe₂O₃+5Fe₂O₃→BaO·6Fe₂O₃
Results of DTA analysis also supported the above reaction.
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