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A kind of method for growing manganese piezite single crystal pyroelectric material by melt method

A technology of manganese boronite and pyroelectricity, which is applied in the field of pyroelectric material of manganese boronite single crystal grown by melt method, and can solve the problems of poor pyroelectric performance and cumbersome preparation method of manganese boronite single crystal , to achieve the effect of excellent pyroelectricity and low preparation cost

Active Publication Date: 2022-04-01
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing method, there is a defect that the preparation method is cumbersome, and the pyroelectric performance of the prepared manganese boronite single crystal is poor.

Method used

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  • A kind of method for growing manganese piezite single crystal pyroelectric material by melt method
  • A kind of method for growing manganese piezite single crystal pyroelectric material by melt method
  • A kind of method for growing manganese piezite single crystal pyroelectric material by melt method

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Embodiment 1

[0026] This embodiment provides a method for growing manganese boronite single crystal pyroelectric material by melt method, which includes the following steps:

[0027] Step 1. Preparation of manganese boronite crystal powder

[0028] Adopt solid-phase synthesis method, get 11.8716g MnCl 2 ·6H 2 O and 13.34795 g Na 2 B 4 o 7 10H 2 O, the above MnCl 2 ·6H 2 O and Na 2 B 4 o 7 10H 2 O were placed in beakers and deionized water was added, and the two were mixed evenly to obtain a solution, the pH of the solution was adjusted to 5-7, and dried in an oven to obtain a solid mixture, which was ground and tabletted , put into a crucible, then put the crucible into a muffle furnace, raise the temperature to 400°C at a heating rate of 5°C / min, and perform calcination. The holding time is 3h, and the furnace is cooled to obtain a solid product. The solid product is ground, Washing with water, filtering, drying and grinding to obtain manganese boronite crystal powder. like ...

Embodiment 2

[0033] This embodiment provides a method for growing manganese boronite single crystal pyroelectric material by melt method, which includes the following steps:

[0034] Step 1. Preparation of manganese boronite crystal powder

[0035] Using solid-phase synthesis method, take 23.7504g MnCl2 6H2O and 26.6959g Na2B4O7 10H2O, the above MnCl 2 ·6H 2 O and Na2B4O7·10H2O were put into a beaker respectively and deionized water was added, and the two were mixed evenly to obtain a solution, the pH of the solution was adjusted to 5-7, and dried in an oven to obtain a solid mixture, and the dried mixture solid Grinding, tableting, putting into a crucible, then putting the crucible into a muffle furnace, heating up to 600°C at a heating rate of 8°C / min, and calcination, holding time of 5h, furnace cooling, to obtain a solid product, solid The product is ground, washed with water, filtered, dried and ground to obtain manganese boronite crystal powder.

[0036] Step 2. Preparation of man...

Embodiment 3

[0039] This embodiment provides a method for growing manganese boronite single crystal pyroelectric material by melt method, which includes the following steps:

[0040] Step 1, prepare manganese boronite crystal powder by solid-phase synthesis method, take 35.6256gMnCl 2 ·6H 2 O and 40.0439g Na 2 B 4 o 7 10H 2 O, the above MnCl 2 ·6H 2 O and Na 2 B 4 o 7 10H 2O were placed in beakers and deionized water was added, and the two were mixed evenly to obtain a solution, and the pH of the solution was adjusted to 5-7, and dried in an oven to obtain a solid mixture, which was ground and pressed into tablets , put into the crucible, then put the crucible into the muffle furnace, raise the temperature to 800°C at a heating rate of 10°C / min, and carry out calcination. The holding time is 7h, and the furnace is cooled to obtain a solid product. The solid product is ground, Washing with water, filtering, drying and grinding to obtain manganese boronite crystal powder.

[0041...

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Abstract

The invention discloses a method for growing a manganese boronite single crystal pyroelectric material by a melt method. The method comprises: placing manganese boronite crystal powder in a quartz tube, and raising the temperature at a rate of 5-10°C / min. rate, rising to 950-1050°C, holding heat for 2-4h; then cooling down to 700-900°C in the first period of time, then cooling to 400-500°C in the second period of time, followed by furnace cooling to obtain the manganese Peroborite single crystal pyroelectric material. The manganese farborite single crystal pyroelectric material prepared by the method for growing the manganese farborite single crystal pyroelectric material in the present invention has excellent pyroelectricity, and the preparation cost of the method is low.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a method for growing a manganese boronite single crystal pyroelectric material by a melt method. Background technique [0002] At present, the technology of growing crystals in melts has been established since the 1920s, and the main methods of melt growth have been established one after another. Gemstones grown by flame fusion were the first to be applied in industry; transistors were successfully developed in the 1940s; rubies were stimulated in the 1960s The discovery of emission; the rapid development of large-scale integrated circuits, integrated optical circuits, ferroelectric thin films and superconducting thin films based on single crystals has put forward higher requirements for single crystals, that is, large size, high quality and multiple varieties. With the passage of time, the growth process of the melt method has become more and more mature, which has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B11/00C30B29/10
CPCC30B11/00C30B29/10
Inventor 赵长春郭杰森孙瑞锦孟德忠马宇欣张泽宇陈飞刘天明汪强强武岳彤侯东旭
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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