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New-structure material-ytterbium-magnesium-indium oxide and preparation method thereof

An indium oxide, new structure technology, applied in chemical instruments and methods, gallium/indium/thallium compounds, inorganic chemistry, etc., to achieve the effects of avoiding unnecessary impurities, fast industrialization, and simple operation

Inactive Publication Date: 2018-09-14
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the preparation of high temperature and high pressure

Method used

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  • New-structure material-ytterbium-magnesium-indium oxide and preparation method thereof
  • New-structure material-ytterbium-magnesium-indium oxide and preparation method thereof
  • New-structure material-ytterbium-magnesium-indium oxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Analytical pure ytterbium oxide powder (Yb 2 o 3 ) with magnesium oxide powder (MgO) and indium oxide powder (In 2 o 3 ) in a molar ratio of 1:2:1, and after powder pressing and molding, the sample is put into a high-temperature and high-pressure cavity. Graphite is used as the heating tube in the assembly chamber, and pyrophyllite is used as the insulating tube. The synthetic pressure is 5.5GPa, the temperature is 2073K, and the pressure holding time is 30 minutes. After the heating is stopped, the sample is naturally cooled to room temperature and then the pressure is released. Under this condition, a pure phase is prepared. The monoclinic structure YbMgInO 4 . For specific X-ray diffraction results, see figure 1 .

Embodiment 2

[0020] Use the same raw material powder as in Example 1, mix according to the molar ratio of 1:2:1, and adopt the assembly of Example 1 after the powder is pressed into shape. The synthesis pressure is 5.5GPa, the temperature is 2073K, the holding time is 15 minutes, and the heating is stopped. After the sample is naturally cooled to room temperature, the pressure is released. The compound prepared under this condition contains YbMgInO 4 The monoclinic phase also contains unreacted heterophase. For specific X-ray diffraction results, see figure 2 .

Embodiment 3

[0022] Using the same assembly and raw materials as in Example 1, the synthesis pressure is 5.5GPa, the temperature is 1873K, and the pressure holding time is 30 minutes. After the heating is stopped, the sample is naturally cooled to room temperature and then the pressure is released. The compound prepared under this condition contains part of YbMgInO 4 Monoclinic phase, mainly containing unreacted heterophase. For specific X-ray diffraction results, see image 3 .

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Abstract

The invention discloses a new-structure material-ytterbium-magnesium-indium oxide and a preparation method thereof, and belongs to the technical field of preparation of quantum topological materials.A molecular formula of the ytterbium-magnesium-indium oxide is YbMgInO4, and the ytterbium-magnesium-indium oxide has a monoclinic crystal structure. The preparation method is characterized by takingytterbium oxide powder, magnesium oxide powder and indium oxide powder as raw materials and synthesizing on a high-temperature high-pressure device, wherein the synthetic pressure is 5.5GPa, the temperature is 1873 to 2073 K, and temperature preservation and pressure preservation can be carried out for 15 to 30 minutes. The preparation method disclosed by the invention is implemented in an anhydrous and improver-free environment, unnecessary impurities can be prevented from appearing, and the obtained monoclinic crystal ytterbium-magnesium-indium oxide is high in purity; the used high-temperature high-pressure device is already used for producing diamond to a large extent, the operation is simple, and industrialization can be more quickly implemented.

Description

technical field [0001] The invention belongs to the technical field of preparation of quantum topological materials. Specifically related to the monoclinic phase of ytterbium magnesium indium oxide, and the ytterbium oxide (Yb 2 o 3 ), magnesium oxide (MgO), indium oxide (In 2 o 3 ) as a raw material, a method for synthesizing monoclinic phase ytterbium magnesium indium oxide by using high temperature and high pressure preparation technology. Background technique [0002] Magnetic materials are closely related to informatization, automation, mechatronics, national defense, and all aspects of the national economy, and are an important pillar and foundation of the national economy. In recent years, the development of magnetic materials is very rapid, and the continuous emergence of new magnetic materials has played a huge role in promoting the progress of modern industrial technology. In particular, quantum topological materials, due to the Majorana fermions excited by li...

Claims

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Application Information

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IPC IPC(8): C01G15/00
CPCC01G15/006C01P2002/72
Inventor 王欣刘嘉煜吕焘陶强朱品文
Owner JILIN UNIV
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