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首页> 外文期刊>Physica, C. Superconductivity and its applications >In situ observation of growth process of (Nd1/3Eu1/3Gd1/3)Ba2Cu3Ox films prepared by MOD method
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In situ observation of growth process of (Nd1/3Eu1/3Gd1/3)Ba2Cu3Ox films prepared by MOD method

机译：MOD法制备（Nd1 / 3Eu1 / 3Gd1 / 3）Ba2Cu3Ox薄膜的生长过程的原位观察

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摘要

We have investigated the crystallization process of (Nd1/3Eu1/3Gd1/3)Ba2Cu3Ox (NEG123) from NEG123 amorphous film prepared by metalorganic deposition (MOD). NEG123 film was deposited on MgO(100) using metal (Nd, Eu, Gd, Ba, Cu) naphthenates. The film was preheated for 1 h at 450 degrees C in air prior to in situ observation using a high-temperature optical microscope. The in situ observation of growth aspects has been made up to 900 degrees C in N-2 atmosphere. It was found that (1) irregular, granular, needle and platelet crystals are formed, (2) a large number of irregular crystals appear at around 890 degrees C, (3) NEG123 platelet crystals with well-defined faces are formed in the irregular crystals, and (4) many needle crystals are grown from granular crystals of Ba rich at a growth rate of about 7.5 mu m/s. (C) 2007 Elsevier B.V. All rights reserved.
机译：我们研究了通过金属有机沉积（MOD）制备的NEG123非晶膜的（Nd1 / 3Eu1 / 3Gd1 / 3）Ba2Cu3Ox（NEG123）的结晶过程。使用金属（Nd，Eu，Gd，Ba，Cu）环烷酸盐将NEG123膜沉积在MgO（100）上。将膜在空气中在450摄氏度下预热1小时，然后使用高温光学显微镜进行原位观察。在N-2大气中已对生长方面进行了原位观察，温度高达900摄氏度。发现（1）形成不规则，粒状，针状和片状的晶体，（2）在890℃左右出现大量不规则的晶体，（3）在该不规则状中形成了具有明确表面的NEG123片状晶体（4）许多针状晶体是从富含Ba的粒状晶体中生长出来的，其生长速率约为7.5μm/ s。 （C）2007 Elsevier B.V.保留所有权利。

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