公开(公告)号：US4039347A

公开(公告)日：1977-08-02

申请号：US696989

申请日：1976-06-17

申请人： James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher ,  Daniel W. Gates ,  Yoshiro Harada ,  William R. Logan ,  John E. Gilligan

发明人： James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher ,  Daniel W. Gates ,  Yoshiro Harada ,  William R. Logan ,  John E. Gilligan

IPC分类号： C01G23/00 ,  C09C1/36 ,  C09C1/04

CPC分类号： C09C1/36 ,  C01G23/003 ,  C01P2002/84 ,  C01P2004/61 ,  C01P2004/62

摘要： Zinc orthotitanate (Zn.sub.2 TiO.sub.4) suitable for use as a pigment for spacecraft thermal control coatings is prepared by heating a slightly zinc-deficient reaction mixture of precipitated oxalates of zinc and titanium. The reaction mixture can be formed by co-precipitation of zinc and titanium oxalates from chloride solution or by mixing separately precipitated oxalates. The mixture is first heated to 400.degree. to 600.degree. C to remove volatiles and is then rapidly heated at 900.degree. to 1200.degree. C. Zinc orthotitanate produced by this method exhibits the very fine particle size needed for thermal control coatings as well as stability in a space environment.

摘要翻译： 通过加热锌和钛的沉淀草酸盐的略微缺锌的反应混合物制备适合用作航天器热控涂料颜料的原钛酸锌（Zn2TiO4）。 反应混合物可以通过从氯化物溶液中共沉淀锌和草酸钛而形成，或通过混合分别沉淀的草酸盐形成。 首先将混合物加热至400至600℃以除去挥发物，然后在900℃至1200℃下快速加热。通过该方法生产的原钛酸锌表现出热控涂层所需的非常细的粒度以及稳定性 空间环境。