Mataev Mukhametkali, Madiyarova Altynai, Patrin Gennady, Abdraimova Moldir, Nurbekova Marzhan, Durmenbayeva Zhadyra
Department of Chemistry, Faculty of Natural Sciences, Kazakh State Women's Teacher Training University, Almaty 050000, Kazakhstan.
Department of General Physics, Siberian Federal University, Krasnoyarsk 660041, Russia.
Materials (Basel). 2024 Jul 30;17(15):3754. doi: 10.3390/ma17153754.
In this article, the sol-gel method was used as a synthesis method, which shows the physicochemical nature of the synthesis of a new complex material, ferrite LiMnFeO. The structure and composition of the synthesized ferrite were determined by X-ray phase analysis. According to analysis indicators, it was found that our compound is a single-phase, spinel-structured, and syngony-cubic type of compound. The microstructure of the compound and the quantitative composition of the elements contained within it were analyzed under a scanning electron microscope (SEM). Under a scanning electron microscope, microsystems were taken from different parts of LiMnFeO-type crystallite; the elemental composition of crystals was analyzed; and the general type of surface layer of complex ferrite was shown. As a result, given the fact that the compound consists of a single phase, the clarity of its construction was determined by the topography and chemical composition of the compound. As a result, it was found that the newly synthesized complex ferrites correspond to the formula LiMnFeO. The particles of the formed compounds have a large size (between 50.0 μm or 20.0 μm and 10.0 μm). Electrophysical measurements were carried out on an LCR-800 unit at intervals of 293-483 K and at frequencies of 1.5 and 10 kHz. An increase in frequency to 10 kHz led to a decrease in the value ε in the range of the studied temperature (293-483 K).
在本文中,采用溶胶-凝胶法作为合成方法,该方法展示了新型复合材料铁氧体LiMnFeO合成的物理化学性质。通过X射线相分析确定了合成铁氧体的结构和组成。根据分析指标,发现我们的化合物是单相、尖晶石结构且晶系为立方晶系的化合物。在扫描电子显微镜(SEM)下分析了该化合物的微观结构及其所含元素的定量组成。在扫描电子显微镜下,从LiMnFeO型微晶的不同部位获取微系统;分析了晶体的元素组成;并展示了复合铁氧体表面层的一般类型。结果,鉴于该化合物由单相组成,其结构的清晰度由化合物的形貌和化学成分决定。结果发现,新合成的复合铁氧体符合化学式LiMnFeO。所形成化合物的颗粒尺寸较大(在50.0μm或20.0μm与10.0μm之间)。在LCR - 800装置上于293 - 483K的温度区间以及1.5和10kHz的频率下进行了电物理测量。在研究温度范围(293 - 483K)内,频率增加到10kHz导致ε值下降。