Bochenek Dariusz, Niemiec Przemysław
Institute of Technology and Mechatronics, Faculty of Computer Science and Material Science, University of Silesia in Katowice, 12 Zytnia St., 41⁻200 Sosnowiec, Poland.
Materials (Basel). 2018 Dec 9;11(12):2504. doi: 10.3390/ma11122504.
In this work, PbFeNbO₃ (PFN) ceramic samples synthesized by chemically wet method (precipitation from the solution) were obtained. Due to the tendency to form powder agglomerates, the synthesized powder was subjected to ultrasound. The sintering was carried out under various technological conditions, mainly through controlling the sintering temperature. -X-ray powder-diffraction (XRD), scanning electron microscope (SEM) microstructure analysis, as well as the examinations of dielectric, ferroelectric, and magnetic properties of the PFN ceramics were carried out. Studies have shown that hard ceramic agglomerates can be partially minimized by ultrasound. Due to this treatment, closed porosity decreases, and the ceramic samples have a higher density. Optimization and improvement of the technological process of the PFN material extends the possibility of its use for the preparation of multiferroic composites or multicomponent solid solutions based on PFN. Such materials with functional properties find applications in microelectronic applications, e.g., in systems integrating ferroelectric and magnetic properties in one device. The optimal synthesis conditions of PFN ceramics were determined to be 1050 °C/2 h.
在这项工作中，获得了通过化学湿法（从溶液中沉淀）合成的PbFeNbO₃（PFN）陶瓷样品。由于形成粉末团聚体的倾向，对合成粉末进行了超声处理。烧结在各种工艺条件下进行，主要是通过控制烧结温度。对PFN陶瓷进行了X射线粉末衍射（XRD）、扫描电子显微镜（SEM）微观结构分析以及介电、铁电和磁性性能测试。研究表明，通过超声处理可以部分减少硬陶瓷团聚体。由于这种处理，闭孔率降低，陶瓷样品具有更高的密度。PFN材料工艺过程的优化和改进扩展了其用于制备基于PFN的多铁性复合材料或多组分固溶体的可能性。这种具有功能特性的材料在微电子应用中得到应用，例如，在将铁电和磁性特性集成在一个器件中的系统中。确定PFN陶瓷的最佳合成条件为1050℃/2小时。
