Low-thermal expansion ceramics bonding body and manufacturing method of the same
    10.
    发明申请
    Low-thermal expansion ceramics bonding body and manufacturing method of the same 审中-公开
    低热膨胀陶瓷粘结体及其制造方法相同

    公开(公告)号:US20080096758A1

    公开(公告)日:2008-04-24

    申请号:US11819101

    申请日:2007-06-25

    IPC分类号: C04B33/00 B32B37/06

    摘要: A bonded body obtained by unifying a plurality of structural members exhibiting 0.6*10−6/K or less of absolute value of thermal expansion coefficient in room temperature, 100 GPa or more of modulus of elasticity and 40 GPa·cm3/g or more of specific rigidity, the plurality of structural members having bonding surfaces that are brought into contact with each other and are unified by a heating process, and a manufacturing method thereof are provided. The sintered block contains 51.5 to 70.0 oxide-equivalent mass % of Si, the oxide-equivalent mass % being calculated as a ratio of Si in elements (Mg, Al and Si) constituting the sintered block on oxide (MgO, Al2O3, SiO2) basis. Surplus SiO2 residing in the sintered block forms a liquid phase during the heating process to activate mass transfer, so that the material of the bonded portion becomes substantially the same as the base material. Residual stress on account of difference in thermal expansion coefficient can be eliminated and a bonded body with extremely high bonding strength can be obtained.

    摘要翻译: 通过使在室温下具有0.6×10 -6 / K以下的热膨胀系数绝对值,100GPa以上的弹性模量和40GPa以下的多个结构体 具有比较刚性的3cm / g以上的多个结构构件,其具有通过加热工艺相互接触并且统一的接合面的多个结构构件及其制造方法。 烧结块含有51.5〜70.0的氧化物当量质量%,氧化物当量质量%以构成烧结块的元素(Mg,Al和Si)中的Si与氧化物(MgO,Al, 2 O 3 3 SiO 2,SiO 2 2)。 存在于烧结块中的剩余SiO 2 在加热过程中形成液相以活化传质,使得接合部分的材料变得基本上与基材相同。 可以消除由于热膨胀系数的差异引起的残余应力,并且可以获得具有极高接合强度的接合体。