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STUDY OF THE OPTIMUM CALCINATION TEMPERATURE FOR THE SYNTHESIS OF STRONTIUM HEXAFERRlTE MAGNETIC CERAMIC NANOPOWDER BY A SOL-GEL AUTO-COMBUSTION METHOD IN THE PRESENCE OF CATIONIC SURFACTANT
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نویسنده
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GHOBEITI HASAB M. ,SEYYED EBRAHIMI S.A. ,BADIEI A.
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منبع
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iranian journal of materials science and engineering - 2005 - دوره : 2 - شماره : 2 - صفحه:19 -22
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چکیده
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In this research the sol-gel auto-combustion method was used to prepare strontiumhexaferrite nanopowder. a solution of distilled water, ferric and strontium nitrates, citric acid,trimethylamine, and n-decyltrimethylammonium bromide cationic surf actant, was heated to f orm aviscous gel. the gel was heated and then ignited automatically. as-burnt powder was calcined attemperatures from 700 to 900 'c in air to obtain srg.6fe20j phase. the influence of thecalcination temperature on the phase composition of the products has been investigated. x-raydiffraction confirm ed the formation of single-phase stront ium hexaferrite nanopowder attemperature of800 'c.
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کلیدواژه
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Sol-gel auto-combustion. Strontium hexaferrite nanopowder ,Cationic surf actant.
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آدرس
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university of tehran, SCHOOL OF METALLURGY AND MATERIALS, ایران, university of tehran, SCHOOL OF METALLURGY AND MATERIALS, ایران, university of tehran, SCHOOL OF CHEMISTRY, ایران
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پست الکترونیکی
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saseyyed@ut.ac.ir
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Authors
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