中文字幕乱老妇人视频,性无码一区二区三区视频,无码一级毛片一区二区视频,精品人妻一区二区三区四区在线

The application direction of nano-europium oxide and nano-terbium oxide

2020-03-061566

Nano europium oxide (Eu2O3)

Nano-europium oxide is mostly used in phosphors. Eu3+ is used as an activator for red phosphors and Eu2+ for blue phosphors. Recently, nano-europium oxide is also used in the stimulated phosphors of new X-ray medical diagnostic systems. Nano-europium oxide can also be used in the manufacture of colored lenses and optical filters for magnetic bubble storage devices. Using nano-yttrium oxide (Y2O3) and nano-europium oxide (Eu2O3) as raw materials to prepare fine particles of yttrium oxide europium (Y2O3: Eu3+) red phosphors, the preparation of rare earth tri-color phosphors found that: (a) can be well mixed with green powder, blue powder evenly; (b) good coating performance; (c) due to the small particle size of the red powder and the increase in the number of luminous particles compared with the surface, the amount of red powder in the rare earth tri-color phosphors can be reduced, resulting in a reduction in cost.


Nano terbium oxide (Tb4O7)

The main application fields are as follows: 1. Phosphor powder is used as the activator of green powder in tri-color phosphor powder, such as phosphate matrix activated by nano-terbium oxide, silicate matrix activated by nano-terbium oxide, and nano-cerium oxide magnesium aluminate matrix activated by nano-terbium oxide. 2, magneto-optical storage materials, in recent years in the research and development of nano-terbium oxide magneto-optical materials, using terbium oxide thin film developed by terb-fe magneto-optical disc as computer storage components, storage capacity can be increased by 10 to 15 times. Faraday optically polarized glass containing nano-terbium oxide is the key material for manufacturing rotators, isolators and toroidal devices widely used in laser technology. Nano-sized terbium oxide nano-sized dysprosium oxide, originally used primarily in sonar, is now used in a wide range of applications, from fuel injection systems, liquid valve control and micropositioning to mechanical actuators, mechanisms and wing regulators for aircraft space telescopes.


卫辉市| 潞西市| 平远县| 洛扎县| 介休市| 海阳市| 华亭县| 财经| 安丘市| 秀山| 溧水县| 宾川县| 交城县| 天峨县| 敖汉旗| 镇安县| 阿坝| 保定市| 应用必备| 松阳县| 桃园县| 中江县| 榕江县| 中方县| 永和县| 青州市| 定远县| 乐安县| 靖宇县| 花垣县| 乐山市| 鲁山县| 喀喇沁旗| 临城县| 会昌县| 大余县| 栾川县| 井陉县| 合山市| 昂仁县| 武城县|