Synthetic block for optimizing performances of diamond and gemstone

Abstract

The invention relates to a synthetic block for optimizing performances of a diamond and a gemstone. According to the technical scheme, the synthetic block is characterized by comprising a sealing material, a thermal insulation material, a conductive material and a heating material, wherein the conductive materials are arranged at the two ends of the sealing material, the heating material is connected between the conductive materials in an abutting mode, and a high-temperature and high-pressure area is formed in the heating material; the heat preservation material comprises a first heat preservation pipe and a second heat preservation pipe which are sequentially arranged outside the conductive material in a sleeving mode, the first heat preservation pipe abuts against the outer wall of theheating material, the second heat preservation pipe is arranged between the sealing material and the first heat preservation pipe, the height of the second heat preservation pipe is larger than that of the first heat preservation pipe, and the second heat preservation pipe abuts against the outer wall of the heating material. And the synthesis block is square. The diamond and gemstone composite material can bear ultrahigh pressure and ultrahigh temperature, has good sealing performance and heat preservation performance, and achieves the purpose of optimizing the performance of diamond and gemstone.

Description

technical field [0001] The invention relates to the technical field of superhard material synthesis, in particular to a synthetic block for optimizing the properties of diamonds and precious stones. Background technique [0002] Diamond has excellent physical and chemical properties. Among them, diamond with complete crystal form and high purity has extremely high strength and high thermal stability, and is suitable for sawing tools with high impact and heavy load. Synthetic diamond is a synthetic rod composed of high-purity graphite material and metal alloy catalyst, which is prepared by high temperature and high pressure. The preparation process of high-quality synthetic diamond requires highly stable pressure and temperature, and any fluctuation will affect the growth of diamond crystals. [0003] The synthetic blocks commonly used in the market can withstand pressure and temperature within 5.5GPa and 1500°C. Moreover, the temperature field and pressure field in most sy...

AI Technical Summary

Problems solved by technology

Moreover, the temperature field and pressure field in most synthesis chambers are not uniform, and the stability is poor. Especially in the synthesis of large chambers, the real pressure in the center of the chamber is lower than that at the edge of the chamber, resulting in the central part of the synthesis chamber in actual production. The quality of artificial diamonds varies greatly, resulting in the physical properties of diamonds and gemstones such as color and clarity not meeting the requirements.

Images