کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7886924 1509788 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ceramic and transport properties of halogen-substituted strontium ferrite
ترجمه فارسی عنوان
خواص سرامیک و حمل و نقل فریت استرانسیم هالوژن جایگزین
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
An attempt of fluorine and chlorine substitution for oxygen in strontium ferrite SrFeO3-δ was undertaken in search of a new means of influence on the oxide properties. An uncontrollable removal of halogen-ions from oxides during synthesis was detected. Nevertheless, residual halogens were found to provide a notable impact on ion conductivity and oxide stability under reducing conditions. More than twice higher ion conductivity relative to SrFeO3-δ was recorded in materials with nominal compositions SrFeO2.8-δF0.2, SrFeO2.6-δCl0.4, and SrFeO2.4-δCl0.6. The strong effect of halogen addition on ceramic properties of oxides was revealed. While SrFeO3-δ was known for its poor sinterability, adding 0.2 mol of fluorine or chlorine during the synthesis of SrFeO3-δ was shown to result in successful obtaining gas-tight ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11301-11306
نویسندگان
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