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硼元素是一种热传导和电传导性能都很差的物质,它的熔点又很高(2300℃),用电阻加热法在真空中使其蒸发是非常困难的。为了制备硼靶,我们研制了一种电子轰击
Boron is a substance that has poor heat conductivity and electrical conductivity, and has a very high melting point (2300 ° C). It is very difficult to evaporate boron in a vacuum by resistance heating. In order to prepare a boron target, we developed an electron bombardment