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首页> 外文期刊>Journal of Crystal Growth >Behaviors of trace amounts of metal-oxide impurities in CaF_2 crystal grown by Stockbarger's method
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Behaviors of trace amounts of metal-oxide impurities in CaF_2 crystal grown by Stockbarger's method

机译:Stockbarger方法生长的CaF_2晶体中痕量金属氧化物杂质的行为

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The concentrations and distribution of trace amounts of metal impurities in CaF_2 crystals grown by the Stockbarger method from CaF_2 powder and 14 kinds of metal-oxide additives were examined and compared with CaF_2 crystals grown from CaF_2 powder and metal-fluoride additives. In the CaF_2 crystals grown with metal-oxide additives, the Li, Na, Cr, Fe, Ni, Cu and Pb metal-impurities were hardly detected, but the Mg, Sr, Ba and Al metal impurities remarkably remained. This tendency is almost the same as that observed in metal-fluoride addition. In the CaF_2 crystals grown with metal-oxide additives, however, large amounts of La, Y and Ce metal-impurities remained, compared with the CaF_2 crystals grown with metal-fluoride additives.
机译:用Stockbarger方法从CaF_2粉末和14种金属氧化物添加剂中生长的CaF_2晶体中的痕量金属杂质的浓度和分布进行了检查,并与由CaF_2粉末和金属氟化物添加剂生长的CaF_2晶体进行了比较。在用金属氧化物添加剂生长的CaF_2晶体中,几乎没有检测到Li,Na,Cr,Fe,Ni,Cu和Pb金属杂质,但是Mg,Sr,Ba和Al金属杂质明显保留。这种趋势几乎与在添加金属氟化物中观察到的趋势相同。然而,与使用金属氟化物添加剂生长的CaF_2晶体相比,在使用金属氧化物添加剂生长的CaF_2晶体中仍然保留了大量的La,Y和Ce金属杂质。

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