Sintering aids for lanthanide ceramics
    1.
    发明授权
    Sintering aids for lanthanide ceramics 有权
    镧系陶瓷烧结助剂

    公开(公告)号:US09115032B2

    公开(公告)日:2015-08-25

    申请号:US13702282

    申请日:2012-02-23

    摘要: This disclosure relates to a method of densifying a lanthanide chromite ceramic or a mixture containing a lanthanide chromite ceramic. The method comprises mixing one or more lanthanide chromite ceramics with one or more sintering aids, and sintering the mixture. The one or more lanthanide chromite ceramics are represented by the formula (Ln1-xAEx)zCr1-yByO3-δ, wherein Ln is a lanthanide element or yttrium, AE is one or more alkaline earth elements, B is one or more transition metals, x is a value less than 1, y is a value less than or equal to 0.5, and z is a value from 0.8 to 1.2. The sintering aids comprise one or more spinel oxides. The one or more spinel oxides are represented by the formula AB2O4 or A2BO4 wherein A and B are cationic materials having an affinity for B-site occupancy in a lanthanide chromite ceramic structure, e.g., ZnMn2O4, MgMn2O4, MnMn2O4 and CoMn2O4. This disclosure also relates in part to products, e.g., dense ceramic structures produced by the above method.

    摘要翻译: 本公开涉及致密化镧系铬铁矿陶瓷或含有镧系铬铁矿陶瓷的混合物的方法。 该方法包括将一种或多种镧系亚铬酸盐陶瓷与一种或多种烧结助剂混合,并烧结该混合物。 一种或多种镧系亚铬酸盐陶瓷由式(Ln1-xAEx)zCr1-yByO3-δ表示,其中Ln是镧系元素或钇,AE是一种或多种碱土金属元素,B是一种或多种过渡金属,x 是小于1的值,y是小于或等于0.5的值,z是0.8至1.2的值。 烧结助剂包括一种或多种尖晶石氧化物。 一种或多种尖晶石氧化物由式AB2O4或A2BO4表示,其中A和B是对镧系铬铁矿陶瓷结构中的B位占据的亲和性的阳离子材料,例如ZnMn 2 O 4,MgMn 2 O 4,MnMn 2 O 4和CoMn 2 O 4。 本公开还部分地涉及产品,例如通过上述方法制备的致密陶瓷结构。

    Perovskite electrodes and method of making the same
    10.
    发明授权
    Perovskite electrodes and method of making the same 有权
    钙钛矿电极及其制作方法

    公开(公告)号:US06946213B2

    公开(公告)日:2005-09-20

    申请号:US10425191

    申请日:2003-04-28

    摘要: The invention relates to perovskite oxide electrode materials in which one or more of the elements Mg, Ni, Cu, and Zn are present as minority components that enhance electrochemical performance, as well as electrode products with these compositions and methods of making the electrode materials. Such electrodes are useful in electrochemical system applications such as solid oxide fuel cells, ceramic oxygen generation systems, gas sensors, ceramic membrane reactors, and ceramic electrochemical gas separation systems.

    摘要翻译: 本发明涉及一种钙钛矿氧化物电极材料,其中一种或多种元素Mg,Ni,Cu和Zn作为提高电化学性能的少数成分,以及具有这些组成的电极产品和制备电极材料的方法存在。 这种电极可用于电化学系统应用,例如固体氧化物燃料电池,陶瓷氧气发生系统,气体传感器,陶瓷膜反应器和陶瓷电化学气体分离系统。