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Vacuum hot-pressing preparation method of lutetium-terbium oxide magneto-optic transparent ceramic
The invention relates to a lutetium terbium oxide magneto-optic transparent ceramic and a preparation method thereof, wherein the molecular formula of the magneto-optic transparent ceramic is (Lu1-xTbx)2O3; the x is the concentration of terbium ions and is equal to 30-75 mol%. The magneto-optic transparent ceramic is prepared by adopting a vacuum hot-pressing sintering process which comprises thefollowing steps: (1) selecting the value of x, and synthesizing lutetium terbium oxide nano-powder meeting a stoichiometric ratio by adopting a coprecipitation method; (2) adding a sintering aid, andcarrying out high-energy ball milling treatment on the powder to obtain a raw material required by sintering; and (3) putting the raw materials into a graphite mold, and preparing the lutetium terbiumoxide magneto-optic ceramic through a vacuum hot-pressing sintering technology. The transmittance of the prepared magneto-optical transparent ceramic in a visible light region can reach 70% or above,and the prepared magneto-optical transparent ceramic has a high Verdet constant and is expected to be applied to magneto-optical isolators. The invention provides a simple preparation process of thelutetium terbium oxide magneto-optical transparent ceramic, wherein the content of terbium in the lutetium terbium oxide ceramic is further increased by doping lutetium ions, so that the magneto-optical coefficient is increased, and the preparation cost is reduced.
本发明涉及一种氧化镥铽磁光透明陶瓷及其制备方法，该磁光透明陶瓷的分子式为(LuTb)O，其中x为铽离子的浓度，x＝30～75mol％。该磁光透明陶瓷采用真空热压烧结工艺制备，包括以下步骤：(1)选定x的取值，采用共沉淀法合成满足化学计量比的氧化镥铽纳米粉体；(2)通过添加烧结助剂，高能球磨处理粉体，得到烧结所需的原料；(3)将原料置于石墨模具中，采用真空热压烧结技术，制备出氧化镥铽磁光陶瓷。制备的磁光透明陶瓷在可见光区的透过率可达70％或以上以及高的维尔德常数，有望在磁光隔离器中得到应用。本发明提供了一种简单的氧化镥铽磁光透明陶瓷的制备工艺，通过镥离子的掺杂进一步提高了氧化镥铽陶瓷中铽的含量，提升了磁光系数，降低了制备成本。
Vacuum hot-pressing preparation method of lutetium-terbium oxide magneto-optic transparent ceramic
The invention relates to a lutetium terbium oxide magneto-optic transparent ceramic and a preparation method thereof, wherein the molecular formula of the magneto-optic transparent ceramic is (Lu1-xTbx)2O3; the x is the concentration of terbium ions and is equal to 30-75 mol%. The magneto-optic transparent ceramic is prepared by adopting a vacuum hot-pressing sintering process which comprises thefollowing steps: (1) selecting the value of x, and synthesizing lutetium terbium oxide nano-powder meeting a stoichiometric ratio by adopting a coprecipitation method; (2) adding a sintering aid, andcarrying out high-energy ball milling treatment on the powder to obtain a raw material required by sintering; and (3) putting the raw materials into a graphite mold, and preparing the lutetium terbiumoxide magneto-optic ceramic through a vacuum hot-pressing sintering technology. The transmittance of the prepared magneto-optical transparent ceramic in a visible light region can reach 70% or above,and the prepared magneto-optical transparent ceramic has a high Verdet constant and is expected to be applied to magneto-optical isolators. The invention provides a simple preparation process of thelutetium terbium oxide magneto-optical transparent ceramic, wherein the content of terbium in the lutetium terbium oxide ceramic is further increased by doping lutetium ions, so that the magneto-optical coefficient is increased, and the preparation cost is reduced.
本发明涉及一种氧化镥铽磁光透明陶瓷及其制备方法，该磁光透明陶瓷的分子式为(LuTb)O，其中x为铽离子的浓度，x＝30～75mol％。该磁光透明陶瓷采用真空热压烧结工艺制备，包括以下步骤：(1)选定x的取值，采用共沉淀法合成满足化学计量比的氧化镥铽纳米粉体；(2)通过添加烧结助剂，高能球磨处理粉体，得到烧结所需的原料；(3)将原料置于石墨模具中，采用真空热压烧结技术，制备出氧化镥铽磁光陶瓷。制备的磁光透明陶瓷在可见光区的透过率可达70％或以上以及高的维尔德常数，有望在磁光隔离器中得到应用。本发明提供了一种简单的氧化镥铽磁光透明陶瓷的制备工艺，通过镥离子的掺杂进一步提高了氧化镥铽陶瓷中铽的含量，提升了磁光系数，降低了制备成本。
Vacuum hot-pressing preparation method of lutetium-terbium oxide magneto-optic transparent ceramic
一种氧化镥铽磁光透明陶瓷的真空热压制备方法
ZHOU DING (Autor:in) / LI WEIWEI (Autor:in) / FU JIAJIA (Autor:in) / LI XIAOHUI (Autor:in) / SHEN TIANPEI (Autor:in) / XU JIAYUE (Autor:in) / WANG ZHANYONG (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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