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Potassium sodium niobate-based transparent ceramic material and preparation method thereof
The invention belongs to the technical field of transparent ceramic materials, and relates to a potassium sodium niobate-based transparent ceramic material and a preparation method thereof. The chemical composition of the potassium sodium niobate-based transparent ceramic material is (1-x)(K0.5Na0.5)NbO3-xSr(Sc0.5Nb0.5)O3, wherein x is larger than or equal to 10 mol% and smaller than or equal to 20 mol%. The compact and uniform transparent ferroelectric ceramic with micron-sized grains is successfully prepared by adopting a traditional solid-phase sintering technology. The ceramic prepared inthe invention shows high transmissivity (64-72% under the thickness of 0.3 mm) in visible light and near-infrared regions, and can obtain a high energy storage density of 4.45 J/cm<3> under a high breakdown field intensity (395 kV/cm); the system transparent ceramic well combines electrical and optical characteristics, realizes multifunction of electronic components, can replace a part of lead-containing ceramic, and reduces environmental pollution of heavy metals.
本发明属于透明陶瓷材料技术领域，涉及一种铌酸钾钠基透明陶瓷材料及其制备方法，其化学组成为(1‑x)(KNa)NbO‑xSr(ScNb)O，其中10≦x≦20mol％；采用传统固相法烧结法成功制备出致密均匀具有微米级晶粒的透明铁电陶瓷。本发明所制备的陶瓷在可见光及近红外区域显示出较高的透射率(在0.3mm的厚度下为64％∽72％)，并且在高击穿场强(395kV/cm)下可获得4.45J/cm的高储能密度；该体系透明陶瓷可将电学与光学特性良好结合，实现电子元器件的多功能化，并可代替部分含铅陶瓷，减少重金属的环境污染。
Potassium sodium niobate-based transparent ceramic material and preparation method thereof
The invention belongs to the technical field of transparent ceramic materials, and relates to a potassium sodium niobate-based transparent ceramic material and a preparation method thereof. The chemical composition of the potassium sodium niobate-based transparent ceramic material is (1-x)(K0.5Na0.5)NbO3-xSr(Sc0.5Nb0.5)O3, wherein x is larger than or equal to 10 mol% and smaller than or equal to 20 mol%. The compact and uniform transparent ferroelectric ceramic with micron-sized grains is successfully prepared by adopting a traditional solid-phase sintering technology. The ceramic prepared inthe invention shows high transmissivity (64-72% under the thickness of 0.3 mm) in visible light and near-infrared regions, and can obtain a high energy storage density of 4.45 J/cm<3> under a high breakdown field intensity (395 kV/cm); the system transparent ceramic well combines electrical and optical characteristics, realizes multifunction of electronic components, can replace a part of lead-containing ceramic, and reduces environmental pollution of heavy metals.
本发明属于透明陶瓷材料技术领域，涉及一种铌酸钾钠基透明陶瓷材料及其制备方法，其化学组成为(1‑x)(KNa)NbO‑xSr(ScNb)O，其中10≦x≦20mol％；采用传统固相法烧结法成功制备出致密均匀具有微米级晶粒的透明铁电陶瓷。本发明所制备的陶瓷在可见光及近红外区域显示出较高的透射率(在0.3mm的厚度下为64％∽72％)，并且在高击穿场强(395kV/cm)下可获得4.45J/cm的高储能密度；该体系透明陶瓷可将电学与光学特性良好结合，实现电子元器件的多功能化，并可代替部分含铅陶瓷，减少重金属的环境污染。
Potassium sodium niobate-based transparent ceramic material and preparation method thereof
一种铌酸钾钠基透明陶瓷材料及其制备方法
DAI ZHONGHUA (Autor:in) / LI DINGYAN (Autor:in) / LIU WEIGUO (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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