摘要
Fe(OH)3precursorsolwaspreparedbyasol-gelmethod.Theprecursorsolwasdippedontotheabsorbentcotton,andgelwasformedontheabsorbentcottontemplateafterthevolatilizationofmoisture.Fe2O3microtubulesweresynthesizedaftertheprocessofself-propagationorcalcination.Thephase,morphology,andparticlediameterofthesampleswereexaminedbyX-raydiffraction(XRD)andscanningelectronmicroscopy(SEM),andthemagneticpropertiesofthesamplesweremeasuredusingavibratingsamplemagnetometer(VSM).TheexternaldiametersofFe2O3microtubulesrangedbetween8and13μm,andthewallthicknessesrangedbetween0.5and2μm.ThetypeofthecalcinationmethodplaysasignificantroleindevelopingtheFe2O3phaseandthevariationinthemagneticpropertiesinthesol-geltemplatecomplexingmethod.γ-Fe2O3wassynthesizedbyaself-propagationmethod.However,α-Fe2O3wassynthesizedaftercalcinationat400°Cfor2h.Thecoercivityofthesamplessynthesizedbycalcinationat400°Cfor2hafterself-propagationwasfoundtoincreasesignificantly,therebypresentinghardmagneticproperties.
出版日期
2010年05月15日（中国期刊网平台首次上网日期，不代表论文的发表时间）
