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    나트륨이 끼워진 초전도체 및 그 제조방법
    1.
    发明授权
    나트륨이 끼워진 초전도체 및 그 제조방법 失效
    NA介入式超导体及其制备方法

    公开(公告)号：KR100265031B1

    公开(公告)日：2000-09-01

    申请号：KR1019980017680

    申请日：1998-05-15

    申请人： 한국표준과학연구원

    发明人： 허남회 ,  김진태 ,  박종철 ,  박용기

    IPC分类号： C04B35/505

    CPC分类号： H01L39/126 ,  Y10S505/742 ,  Y10S505/78

    摘要： PURPOSE: A sodium inserted superconductor is provided, which is thermally stable and has high critical current density and high critical temperature. And a method for preparing the same is also provided. CONSTITUTION: The sodium inserted yttriferous superconductor is represented by the following formula (1): (Na1-xYx)(Ba1-yLny)2Cu3O6+δ. In the formula (1), Ln is a trivalent lanthanide except Ce and Pr, x is greater than 0.1 and smaller than 0.9, and y is greater than 0.1 and smaller than 0.3. The method comprises steps of: (i) mixing Y2O3, NaCuO2, BaCuO2, Ln2O3 and CuO; and (ii) oxygen heat-treating the mixture of the step (i) at a temperature of 850-950 deg.C for 30-40 hours.

    摘要翻译： 目的：提供钠插入超导体，其是热稳定的并且具有高临界电流密度和高临界温度。 还提供了制备该方法。 构成：插入钠的超导体由下式（1）表示：（Na1-xYx）（Ba1-yLny）2Cu3O6 +δ。 在式（1）中，Ln是除Ce和Pr之外的三价镧系元素，x大于0.1且小于0.9，y大于0.1且小于0.3。 该方法包括以下步骤：（i）混合Y2O3，NaCuO2，BaCuO2，Ln2O3和CuO; 和（ii）在850-950℃的温度下将步骤（i）的混合物进行氧热处理30-40小时。

    YBa₂Cu₃O_7-x 초전도체의 개선된 제조 방법
    2.
    发明授权
    YBa₂Cu₃O_7-x 초전도체의 개선된 제조 방법 失效
    改进的YBa 2 Cu 3 O 7-x超导体的制造方法

    公开(公告)号：KR1019960000500B1

    公开(公告)日：1996-01-08

    申请号：KR1019920021432

    申请日：1992-11-14

    申请人： 한국과학기술원

    发明人： 서정훈 ,  지영아 ,  강석중 ,  윤덕용

    IPC分类号： C01G55/00

    CPC分类号： C04B35/4508 ,  C04B35/653 ,  H01L39/2419 ,  Y10S505/725 ,  Y10S505/74 ,  Y10S505/741 ,  Y10S505/742 ,  Y10S505/78 ,  Y10S505/785 ,  Y10S505/813 ,  Y10S505/821

    摘要： The improved method comprises (A) synthesizing liquid phase generated powder (3BaCuO2+2CuO) by mixing Ba and Cu in a ratio of 3:5, followed by calcining the mixture at 870 deg.C for 26 hours, (B) synthesizing Y2BaCuO5 powder by mixing Y, Ba and Cu in a ratio of 2:1:1, followed by calcinating the mixture at 925 deg.C for 23 hours and sintering the cold pressure moulded Y2BaCuO5 powder at 1,050 deg.C for 15 hours, and (C) surrounding Y2BaCuO5 sintered body with the liquid-phase generated powder and thermal-treating at 800-1,000 deg.C for 15-50 hours under the oxygen atmosphere.

    摘要翻译： 改进的方法包括（A）通过混合比例为3:5的Ba和Cu合成液相产生的粉末（3BaCuO2 + 2CuO），然后在870℃下煅烧26小时，（B）合成Y2BaCuO5粉末 通过将Y，Ba和Cu以2:1:1的比例混合，然后在925℃下煅烧该混合物23小时，并将冷压成型的Y2BaCuO5粉末在1050℃下烧结15小时，和（C ）将Y2BaCuO5烧结体与液相产生粉末并在氧气氛下在800-1,000℃热处理15-50小时。