Who knows the graphs showing how trichlorosilane and dichlorodihydrosilane change with different temperatures and pressures!
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Thank you. Please send it to qq1175432111@qq.com. I’m a novice in the chemical industry and would like to learn some materials; if there are kind people who can send me information related to the reduction of polycrystalline silicon, that would be great
I read the title three times but didn’t understand what it meant.
In simple terms, is it the saturated vapor pressures of TCS and DCS at different temperatures?
No. Adsorption graphs of TCS and DCS at 1000 to 1200 degrees Celsius for silicon cores under vacuum
For newcomers in the chemical industry, during the production process in reduction furnaces, an increase in the amount of dichlorodihydrosilicon leads to the accumulation of silicon powder inside the furnace, even when the temperature remains constant. How to control the temperature and prevent it.
What is the principle behind the tendency for silicon powder to form when the content of dichlorodihydrosilicon is high?
I’m a newcomer to the chemical industry. I don’t quite understand!
The gas-phase decomposition temperature of SiH2Cl2 is lower than that of SiHCl3. Moreover, today’s furnaces are equipped with multiple rods, and the heat distribution in the center of the furnace remains relatively constant; as a result, SiH2Cl2 tends to decompose in the gas phase. If the silicon powder is too far away from the surface of the silicon rods, it cannot adhere to them and instead disperses in the gas phase. Do you understand? :handshake
Finally, there’s something I understand**. Thank you so much