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Nonstoichiometry (δ) and High-Temperature Thermodynamic Properties of (Mg0.22Mn0.07Fe0.71)3−δO4 Ferrite Spinel

✍ Scribed by Sun-Ho Kang; Han-Ill Yoo


Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
222 KB
Volume
145
Category
Article
ISSN
0022-4596

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✍ Sun-Ho Kang; Han-Ill Yoo 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 324 KB

The nonstoichiometry of spinel ferrite (Mg x Fe 1؊x ) 3؊ O 4 has been measured as a function of oxygen activity (a O2 ) and Mg content (x) at 1000°C via coulometric titration. For a given Mg content, the nonstoichiometry varies with the oxygen activity as O2 , indicating metal vacancies at high a O