The bottleneck of CVD-grown diamond films is to avoid the formation of graphite by hydrocarbons, so the hydrogen atoms should be much more than the carbon source. The carbon source concentration determines the growth rate of the diamond film, but when the carbon source is too high, the hydrogen atoms will not be able to maintain the diamond structure and the decomposed carbon will become graphite. Therefore, the carbon source is too thick and will reduce the rate of conversion into diamonds. The concentration and temperature of the carbon source determine the difference in the rate of growth of the diamond with the direction, and therefore the crystal form of the diamond. The concentration of hydrogen atoms not only determines whether the diamond film can grow, but also determines the quality of the diamond film. The ratio produced by hydrogen atoms is less subject to gas, but is directly related to temperature. As the temperature of the heat source decreases and the distance increases, the concentration of hydrogen atoms also drops sharply.
Effect of CVD (Chemical Vapor Deposition) on diamonds
1. Subverting the value of diamonds The expensive diamonds that used to be said to be in a million years to crystallize can be manufactured in less than a week in the laboratory, subverting the general sense of the value of diamonds.
2. Enhance the use of diamonds in various fields. In the past, diamonds were mostly used as jewellery because of their high prices. Once high-quality diamonds can be produced cheaply, their application value will quickly spread to various fields.
Experts predict that the most important invention of the 21st century will be diamonds that will grow up. One day, cheap diamonds will replace the role of silicon in semiconductors, bringing human technology into another world.
After the mass production of diamonds, it can be more affordable and develop more functions. The diamond has high hardness, excellent thermal conductivity, cutting and grinding properties, and can be used in medical and electronic components.
High-performance microcentrifuge tubes, optimized design, and high-performance quality help protect your samples. Microcentrifuge tubes are made of polypropylene (PP) and are highly mechanically stable, ensuring your samples are stored, run and centrifuged worry-free.
Microcentrifuge tubes have a maximum centrifugation tolerance of 25,000 x g and are autoclavable (20 minutes, 121°C). The centrifuge tube adopts a snap-on tube cover design, which can be operated with one hand and has good sealing performance, which can effectively prevent liquid leakage; the tube wall is smooth, and the tube body is designed with a frosted area for convenient marking.
microcentrifuge tube sizes,microcentrifuge tubes 1.5 ml,microcentrifuge tubes uses
Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yongyuemedicals.com