短熔區 的英文怎麼說
中文拼音 [duǎnróngqū]
短熔區
英文
short zone-
The result of experiment showed that the reaction between ti and c is a thermodynamic course, when 2 wt % mg is added to melt, it can restrain the formation of fragility phase al3ti, and gained al matrix composite which contained tic reinforced particles only. because mg reacts with the forms a micro - high temperature field around the oxide around the graphite particles and the oxygen gas which is brought by the immersion bell, and the reaction gives out a lot of heat energy, thus forms many high micro - fields in melt, which prompt the reaction between the al and ti
加入適量的mg （ 2wt ）可以抑制tic al復合材料中的脆性相al _ 3ti的產生，生成僅含tic的鋁基復合材料；由於活化劑鎂在體系中與石墨顆粒周圍的氧化物、以及外來的氧反應放熱，在熔體中形成微高溫區，促進al - ti反應，同時， al - ti反應也是放熱反應，因此體系中的內能急劇增大，促使al _ 3ti分解以及ti朝c顆粒擴散，縮短反應的孕育時間。At present, the crystal growth equipment is equipped with vacuum tube hf ( lmhz - 2. 5mhz ) induction heating power supply. while this supply has many disadvantages, such as low reliability, short longevity of vacuum tube, operational safety, low transfer efficiency
目前，用於晶體生長的區熔式單晶爐配套使用的是國外進口或國內生產的真空電子管式高頻感應加熱電源，存在諸如可靠性差、電子管使用壽命短、操作不安全、變換效率低等問題。While this kind of power supply has many disadvantages, such as low reliability, short longevity of vacuum tube, operational safety and low transfer efficiency, existing huge capacity solid induction heating power supply cannot replace them to meet industrial needs
目前，國內用於晶體生長的區熔式單晶爐配套使用的是國外進口或國內生產的真空電子管式高頻感應加熱電源，存在諸如可靠性差、電子管使用壽命短、操作不安全、變換效率低等問題。
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