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Synthesis and characterization of nonstoichiometric nickel manganite spinels NixMn3 − x□3δ4O4 + δ

✍ Scribed by Christel Laberty; Pierre Alphonse; J.Jacques Demai; Christian Sarda; Abel Rousset

Book ID
114066704
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
712 KB
Volume
32
Category
Article
ISSN
0025-5408

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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