Abstract A method to synthesize nanosize particles of Y3AlFe4O12 garnet ferrite by precipitation in aqueous solutions at constant pH during the synthesis has been demonstrated. The effect of the sequence of the metal hydroxides precipitation on the filtration coefficient is studied. The filtration coefficient is found to be three times greater in the case of simultaneous precipitation of iron and aluminum hydroxides compared to the one observed for the case of simultaneous precipitation of all hydroxides. Synthesized precipitates are established to be amorphous and crystalline nanoparticles are formed in one stage after the treatment at 800 °C. The average particles size is around 60 – 70 nm. The ceramics obtained after a proper heat treatment of the nanoparticles is shown to be characterized by the high density and good electrophysical properties.

中文翻译：

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掺铝钇铁石榴石 Y3AlFe4O12：合成与性能

摘要 已经证明了一种通过在合成过程中在恒定 pH 值的水溶液中沉淀来合成 Y3AlFe4O12 石榴石铁氧体纳米颗粒的方法。研究了金属氢氧化物沉淀的顺序对过滤系数的影响。发现在铁和氢氧化铝同时沉淀的情况下，过滤系数是所有氢氧化物同时沉淀的情况下观察到的过滤系数的三倍。在 800 °C 处理后，合成的沉淀物被确定为无定形，结晶纳米颗粒在一个阶段形成。平均粒径约为 60 – 70 nm。纳米颗粒经过适当热处理后获得的陶瓷具有高密度和良好的电物理特性。