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Method for synthesizing high-quality diamond from artificial graphite and spherical graphite with one-time temperature-reaching and pressure-reaching process

A technology of spherical graphite and artificial graphite, which is applied in the field of synthesizing high-quality diamond, can solve the problem of low proportion of high-quality diamond

Inactive Publication Date: 2015-05-13
CHANGCHUN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the synthesis of high-quality diamond requires a second or more boosting process. If the second or more boosting process is not adopted, the synthesized diamond is basically a special-shaped material, and the proportion of high-quality diamond is relatively small.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0004] Example 1: Artificial graphite powder and spherical graphite powder are mixed in a ratio of 1:19 by mass percentage and mixed evenly with an appropriate amount of catalyst powder to synthesize coarse-grained high-quality diamond.

Embodiment 2

[0005] Example 2: Artificial graphite powder and spherical graphite powder are mixed in a ratio of 1:9 by mass percentage and mixed evenly with an appropriate amount of catalyst powder to synthesize coarse-grained high-quality diamond.

Embodiment 3

[0006] Example 3: Artificial graphite powder and spherical graphite powder are mixed in a mass percentage ratio of 3:7 and mixed evenly with an appropriate amount of catalyst powder to synthesize diamonds of 40 to 100 mesh.

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PUM

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Abstract

The invention relates to a method for synthesizing high-quality diamond from different types of graphite powders. The method is characterized in that artificial graphite powder and spherical graphite powder are adopted as carbon sources; the graphite powders are fully mixed with a catalyst according to a certain ratio; and the diamond is synthesized. With the raw materials, secondary or multiple times of pressure increase is not needed. The temperature and pressure can be reached directly, and high-quality diamond monocrystal with good crystal form, high transparency and high strength can be synthesized.

Description

technical field [0001] The invention relates to a method for synthesizing high-quality diamond by utilizing the different nucleation properties of artificial graphite powder and spherical graphite powder to synthesize diamond. Background technique [0002] Due to its excellent performance, diamond is widely used in various fields such as industry, science and technology, and national defense. However, at present, the synthesis of high-quality diamond requires a second or more boosting process. If the second or more boosting process is not adopted, the synthesized diamond is basically a special-shaped material, and the proportion of high-quality diamond is relatively small. Contents of the invention [0003] In the present invention, artificial graphite powder and spherical graphite powder are used as carbon sources, and artificial graphite powder and spherical graphite powder are fully mixed according to a certain ratio (artificial graphite powder accounts for 5% to 100% o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/06
CPCB01J3/062B01J2203/06B01J2203/061
Inventor 高峰李春杰贺小光杨光敏
Owner CHANGCHUN NORMAL UNIVERSITY