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    Modified czochralski-grown magnesium aluminate spinel and method of making same
    1.
    发明授权
    Modified czochralski-grown magnesium aluminate spinel and method of making same 失效
    改性CZOCHRALSKI-GRAN镁铝合金钢锭及其制造方法

    公开(公告)号：US3883313A

    公开(公告)日：1975-05-13

    申请号：US31497472

    申请日：1972-12-14

    Applicant: RCA CORP

    Inventor： CULLEN GLENN WHERRY ,  BOLIN STEPHEN RAY ,  CORBOY JOHN FRANCIS ,  CREAMER JOHN ELVIN ,  WASIELEWSKI ALAN JOHN

    IPC: C30B15/00 ,  B01J17/24 ,  C01F7/02 ,  H01H3/10

    CPC classification number: C30B15/00 ,  C30B29/26 ,  Y10S117/902 ,  Y10S117/906

    Abstract: A modified, Czochralski-grown, single-crystalline spinel has a nominal composition (MgO)(Al2O3)x, where x can be between 1 and 2.3. The spinel has an (OH) ion content in its lattice that is related to the infra-red absorption coefficient Alpha , where Alpha varies with the MgO/Al2O3 ratio and at wave number 3360 cm 1 can be between 0.3 and 3.0 cm 1. The novel spinel is grown by a modified Czochralski method wherein the spinel is pulled from a melt of MgO and Al2O3 in an ambient, comprising between 0.2% and 2.0% oxygen, an inert gas, and water vapor substantially saturating (90 - 100% relative humidity) the abmient.

    Abstract translation: 改性的切克劳斯基生长的单晶尖晶石具有标称组成（MgO）（Al 2 O 3）x，其中x可以在1和2.3之间。 尖晶石在其晶格中具有与红外吸收系数α有关的（OH）离子含量，其中α随MgO / Al 2 O 3比变化，波数3360cm -1可以在0.3和3.0cm之间 < - > 1。 新型尖晶石通过改性Czochralski法生长，其中尖晶石在环境中从MgO和Al 2 O 3的熔体中拉出，包含0.2％至2.0％的氧气，惰性气体和基本饱和的水蒸气（90-100％相对 湿度）。

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