洛阳师范学院学报
洛暘師範學院學報
락양사범학원학보
Journal of Luoyang Teachers College
2009年
2期
72~74
,共null页
郭丽丽 师新阁 冯勋 孙海瑞 魏海明
郭麗麗 師新閣 馮勛 孫海瑞 魏海明
곽려려 사신각 풍훈 손해서 위해명
超细粉体 氧化镁 直接沉淀法
超細粉體 氧化鎂 直接沉澱法
초세분체 양화미 직접침정법
ultra-fine powders ; magnesium oxide ; characteristics ; direct precipitation
以工业硫酸镁和草酸铵为原料，采用直接沉淀法合成了超细粉体氧化镁，并通过红外光谱（IR）、热重分析（TG—DTA）、X射线粉末衍射（XRD）、透射电镜（TEM）等手段对该纳米微粒的结构进行了表征．结果表明所制得的纳米氧化镁微粒呈立方晶格，形貌为椭球体，分散性好，粒径在25～35nm之间．考察了反应物浓度、加料方式和煅烧温度等各种因素对粉体质量的影响．
以工業硫痠鎂和草痠銨為原料，採用直接沉澱法閤成瞭超細粉體氧化鎂，併通過紅外光譜（IR）、熱重分析（TG—DTA）、X射線粉末衍射（XRD）、透射電鏡（TEM）等手段對該納米微粒的結構進行瞭錶徵．結果錶明所製得的納米氧化鎂微粒呈立方晶格，形貌為橢毬體，分散性好，粒徑在25～35nm之間．攷察瞭反應物濃度、加料方式和煅燒溫度等各種因素對粉體質量的影響．
이공업류산미화초산안위원료，채용직접침정법합성료초세분체양화미，병통과홍외광보（IR）、열중분석（TG—DTA）、X사선분말연사（XRD）、투사전경（TEM）등수단대해납미미립적결구진행료표정．결과표명소제득적납미양화미미립정립방정격，형모위타구체，분산성호，립경재25～35nm지간．고찰료반응물농도、가료방식화단소온도등각충인소대분체질량적영향．
The ultra-fine magnesium oxide powders were obtained via direct precipitation process, during which the industrial pure MgSO4 · 7H2O（ origined from szaibelyite） and （NH4）2C2O4 were emplyed as raw materials. The precursor and the final product Nano-meter MgO powders were characterized by IR, XRD and TEM. It belongs to cubic lattic, in sphere shape, white, stable in air. The diameter of powder is about 25 - 35 nm and homogenous. The mechanism and factors that influences the quality of final produce, such as reaction concentration, feeding fashion, calcining temperature were investigated.
