Kruk Andrzej, Ziewiec Krzysztof
Institute of Technology, Pedagogical University of Krakow, Ul. Podchorążych 2, 30-084 Kraków, Poland.
Micromachines (Basel). 2022 Dec 18;13(12):2254. doi: 10.3390/mi13122254.
In this paper, physicochemical properties of pure YO and samarium (Sm)-doped YO transparent ceramics obtained via arc plasma melting are presented. Yttria powder with a selected molar fraction of Sm was first synthesized by a solid-state reaction method. High transparent yttria ceramics were obtained by arc plasma melting from both the pure and Sm oxide-doped powders. The morphological, chemical and physical properties were investigated by X-ray diffraction and scanning electron microscopy. The optical band gap was calculated from the absorption spectra so as to understand the electronic band structure of the studied materials. Samples indicate a series of luminescence bands in the visible region after excitation by laser light in the range from 210 to 250 nm. Magneto-optical measurements were carried out in the 300-800 nm range at room temperature. It can be seen that a maximum Verdet constant ca. 24.81 deg/T cm was observed for 405 nm and this value decreases with increasing wavelength. The potential usefulness of the polycrystalline material dedicated to optics devices is presented.
本文介绍了通过电弧等离子体熔炼获得的纯氧化钇（YO）以及掺钐（Sm）的YO透明陶瓷的物理化学性质。首先通过固态反应法合成了具有选定Sm摩尔分数的氧化钇粉末。通过电弧等离子体熔炼由纯氧化钇粉末和掺Sm氧化物粉末均获得了高透明氧化钇陶瓷。通过X射线衍射和扫描电子显微镜对其形态、化学和物理性质进行了研究。根据吸收光谱计算了光学带隙，以便了解所研究材料的电子能带结构。样品在210至250nm范围内的激光激发后，在可见光区域呈现出一系列发光带。在室温下于300 - 800nm范围内进行了磁光测量。可以看出，在405nm处观察到最大韦尔德常数约为24.81度/（特斯拉·厘米），并且该值随波长增加而减小。介绍了该多晶材料在光学器件方面的潜在用途。
