CAJ | 학술논문

以碳酸锶(SrCO3),碳酸钡(BaCO3)、氧化铝(Al2O3)和二氧化钛(TiO2)为原料,通过配方设计,用高温固相反应合成掺锶(Sr)硬锰矿固溶体.借助热重-差热分析、X射线衍射仪、扫描电镜和波谱分析仪等分析手段,研究了碱硬锰矿固溶体的合成温度、物相组成以及晶粒的化学计量.研究表明:合成单相碱硬锰矿固溶体和单相掺Sr碱硬锰矿固溶体的配方分别为Ba1+xAl2+2xTi6-2xO16,SrxBa1Al2+2xTi6-2xO16.单相掺Sr碱硬锰矿固溶体的最低合成温度为1 250℃左右;最佳合成温度为1 300℃.
이탄산송(SrCO3),탄산패(BaCO3)、양화려(Al2O3)화이양화태(TiO2)위원료,통과배방설계,용고온고상반응합성참송(Sr)경맹광고용체.차조열중-차열분석、X사선연사의、소묘전경화파보분석의등분석수단,연구료감경맹광고용체적합성온도、물상조성이급정립적화학계량.연구표명:합성단상감경맹광고용체화단상참Sr감경맹광고용체적배방분별위Ba1+xAl2+2xTi6-2xO16,SrxBa1Al2+2xTi6-2xO16.단상참Sr감경맹광고용체적최저합성온도위1 250℃좌우;최가합성온도위1 300℃.
Strontium-doped solid solution of hollandite(SDSSH)was successfully prepared using strontium carbonate(SrCO3),barium carbonate(BaCO3),alumina(Al2O3),and titanium oxide(TiO2)as raw materials by designing formulas and high temperature solid phase reaction.X-ray diffraction,thermogravimetric-differential thermal analysis,scanning electron microscope,and wave dispersive spectroscopy were employed to investigate the synthesis temperature,composition of phases and chemical composition of crystal grains.The formulas of the as-prepared single phase solid solution of hollandite and single phase SDSSH are Ba1+xAl2+2xTi6-2xO16 and SrxBa1Al2+2xTi6-2xO16 respectively.The lowest synthesis temperature of SDSSH is about 1 250℃,and the optimalis 1 300℃.