SINTERING PROCESS FOR THERMOELECTRIC MATERIALS
    7.
    发明申请
    SINTERING PROCESS FOR THERMOELECTRIC MATERIALS 有权
    热电材料烧结工艺

    公开(公告)号:US20120138873A1

    公开(公告)日:2012-06-07

    申请号:US12961815

    申请日:2010-12-07

    IPC分类号: H01B1/08

    摘要: A process for densifying a composite material is provided. In some instances, the process can reduce stress in a sintered component such that improved densification and/or properties of the component is provided. The process includes providing a mixture of a first material particles and second material particles, pre-sintering the mixture at a first pressure and a first temperature in order to form a pre-sintered component, and then crushing, grinding, and sieving the pre-sintered component in order to form or obtain a generally uniform composite powder. The uniform composite powder is then sintered at a second pressure and a second temperature to form a sintered component, the second pressure being greater than the second pressure.

    摘要翻译: 提供了一种致密化复合材料的方法。 在一些情况下,该方法可以减少烧结组分中的应力,从而提供组分的改进的致密化和/或性质。 该方法包括提供第一材料颗粒和第二材料颗粒的混合物,在第一压力和第一温度下预烧结混合物以形成预烧结组分,然后粉碎,研磨和筛分预烧结组分, 烧结组分以形成或获得大致均匀的复合粉末。 然后将均匀的复合粉末在第二压力和第二温度下烧结以形成烧结组分,第二压力大于第二压力。

    Sintering process for thermoelectric materials
    8.
    发明授权
    Sintering process for thermoelectric materials 有权
    热电材料烧结工艺

    公开(公告)号:US09028725B2

    公开(公告)日:2015-05-12

    申请号:US12961815

    申请日:2010-12-07

    摘要: A process for densifying a composite material is provided. In some instances, the process can reduce stress in a sintered component such that improved densification and/or properties of the component is provided. The process includes providing a mixture of a first material particles and second material particles, pre-sintering the mixture at a first pressure and a first temperature in order to form a pre-sintered component, and then crushing, grinding, and sieving the pre-sintered component in order to form or obtain a generally uniform composite powder. The uniform composite powder is then sintered at a second pressure and a second temperature to form a sintered component, the second pressure being greater than the second pressure.

    摘要翻译: 提供了一种致密化复合材料的方法。 在一些情况下,该方法可以减少烧结组分中的应力,从而提供组分的改进的致密化和/或性质。 该方法包括提供第一材料颗粒和第二材料颗粒的混合物,在第一压力和第一温度下预烧结混合物以形成预烧结组分,然后粉碎,研磨和筛分预烧结组分, 烧结组分以形成或获得大致均匀的复合粉末。 然后将均匀的复合粉末在第二压力和第二温度下烧结以形成烧结组分,第二压力大于第二压力。

    Rectangular magnetron sputtering cathode with high target utilization
    10.
    发明授权
    Rectangular magnetron sputtering cathode with high target utilization 失效
    具有高目标利用率的矩形磁控溅射阴极

    公开(公告)号:US06740212B2

    公开(公告)日:2004-05-25

    申请号:US10273083

    申请日:2002-10-18

    IPC分类号: C23C1435

    CPC分类号: H01J37/3497 C23C14/3407

    摘要: The present invention discloses a novel rectangular sputtering magnetron cathode that significantly improves target utilization and sputtering efficiency. Different from conventional magnatron design that considers only magnetic field distribution and is, therefore, qualitive or empirical, the present magnetron cathode is developed through computer-aided simulation of plasma discharge. The magnetic and electric fields are optimized in a combined manner by quantitatively simulating electron trajectories, electron/Ar collisions, space charge distribution, and target erosion profile. Sputtering tests with Cu target show a target utilization of 55%˜65%, much higher than conventional target utilization which is about 40%. Meanwhile, high sputtering efficiency is achieved by maintaining a relatively strong magnetic field over the surface of the target, which can be thicker than 12 mm, as a result of effective confinement of high-energy electrons.

    摘要翻译: 本发明公开了一种显着提高目标利用率和溅射效率的新型矩形溅射磁控管阴极。 与仅考虑磁场分布的常规磁电轮设计不同,因此具有定性或经验性,本发明的磁控管阴极是通过计算机辅助的等离子体放电模拟而开发的。 通过定量模拟电子轨迹,电子/ Ar碰撞,空间电荷分布和目标侵蚀曲线,以组合的方式优化磁场和电场。 铜靶溅射试验显示,目标利用率为55%〜65%,远高于传统目标利用率的40%左右。 同时,由于有效地限制了高能电子,所以通过在目标表面上保持比较强的磁场可以获得高的溅射效率,其可以比12mm厚。