Synthesis of substituted lithium ferrites under the pulsed and continuous electron beam heating

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• 作者：Elena N. Lysenko^a ; ^{lysenkoen@tpu.ru} ; Anatoliy P. Surzhikov^a ; Vitaliy A. Vlasov^a ; Evgeniy V. Nikolaev^a ; Andrey V. Malyshev^a ; Alexandr A. Bryazgin^b ; Mikhail V. Korobeynikov^b ; Mikhail A. Mikhailenko^c
• 关键词：Substituted lithium ferrites ; Synthesis ; Radiation-thermal heating ; Electron beam
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：392
• 期：Complete
• 页码：1-7
• 全文大小：1091 K
• 卷排序：392

文摘

Synthesis of substituted lithium ferrites with chemical formulas Li0.6Fe2.2Ti0.2O4 and Li0.649Fe1.598Ti0.5Zn0.2Mn0.051O4 under the pulsed and continuous electron beam heating was investigated by X-ray diffraction and thermomagnetometric analysis. The electron beams heating of Li2CO3-Fe2O3-TiO2 or Li2CO3-ZnO-Fe2O3-TiO2-MnO mixtures was carried out at a temperature of 750 °C during 60 min using two types of electron accelerators: ELV accelerator generating continuous electron beam or ILU-6 accelerator generating pulse electron beam. It was established that a high energy electron beam heating of initial reagents mixtures allows obtaining the substituted lithium ferrites with final composition at significantly lower temperatures (at least 200 °C lower than in the case of using traditional thermal synthesis) and times of synthesis. That statement is in agreement with results obtained by XRD analysis, showing single phase formation; by magnetic measurements, showing high values of specific magnetization; by DTG measurements showing the certain Curie temperatures of the synthesized samples.