Photovoltaic, semiconductor and industrial heat treatment industries have developed rapidly, becoming a breakthrough in the large-scale application of carbon/carbon (C/C) composite materials.
As a clean energy, photovoltaic power generation has developed rapidly. In 2019, the global installed capacity of photovoltaics reached 120GW, a record high. Driven by factors such as the continuous decline in the cost of photovoltaic power generation and the pull of emerging markets, the global photovoltaic market will continue to maintain rapid growth. According to the prediction of the International Energy Agency (IEA), the cumulative global installed capacity of photovoltaics is expected to reach 17,21GW by 2030, and will further increase to 4670GW by 2050, with huge development potential.
With the development of the photovoltaic industry, it is difficult for traditional graphite materials to meet the large-scale requirements of Czochralski silicon single crystal furnace and polycrystalline ingot furnace production equipment. The rapid growth of the photovoltaic market and the cost pressure in the photovoltaic industry have brought opportunities for the development of C/C composite applications, which are gradually forming an upgrade of graphite material components in the crystalline silicon manufacturing thermal field system.
C/C composite material has the advantages of low density, high strength, high thermal conductivity, low expansion coefficient, good thermal shock resistance, high dimensional stability, etc., making it one of the few candidate materials for applications above 1650°C. The highest theoretical temperature As high as 2600℃, it is considered to be one of the most promising high-temperature materials. Compared with traditional graphite materials, C/C composite materials have better thermal insulation performance, higher strength, better toughness, and are not easily broken. They can effectively reduce production energy consumption and increase equipment service life, thereby reducing overall production costs.
Compared with graphite thermal field materials, it has great advantages. C/C composite insulation, structural parts and heating elements are the development direction of thermal field materials for photovoltaic equipment such as Czochralski silicon single crystal furnaces and polycrystalline ingot furnaces.
Silicon is currently the most important semiconductor material. More than 95% of the world's semiconductor chips and devices are produced using silicon wafers as the base functional material. In 2018, the sales of semiconductor silicon wafers were US$11.708 billion, accounting for 36.78% of the global semiconductor materials industry. . The development trend of China's semiconductor wafer market is consistent with the global market. With the continuous progress of China's semiconductor manufacturing technology and the commissioning of semiconductor manufacturing production lines, the semiconductor industry has entered a stage of rapid development.
Both photovoltaic and semiconductor industries have huge room for development. In the future, with the industrial upgrading and cost reduction of the photovoltaic and semiconductor industries, it is expected that advanced carbon-based composite materials such as C/C will replace graphite materials and become the photovoltaic industry and semiconductor The main material for industrial crystalline silicon manufacturing thermal field system components has a huge market space.