Method for producing high-temperature lubricious glassy films on silicon-based ceramics
    1.
    发明授权
    Method for producing high-temperature lubricious glassy films on silicon-based ceramics 失效
    硅基陶瓷高温润滑玻璃膜的制备方法

    公开(公告)号:US06740363B1

    公开(公告)日:2004-05-25

    申请号:US10421412

    申请日:2003-04-17

    申请人: Lewis Rosado

    发明人: Lewis Rosado

    IPC分类号: B05D302

    摘要: Provided is a method to produce high-temperature lubricious glassy films on silicon-based ceramics. The method comprises the steps of (a) oxidizing a silicon-based component, (b) coating the oxidized component with an alkali metal compound, and (c) heating the component to a high temperature in a sulfur-rich oxidizing environment. The steady state sliding friction coefficient values obtained with this system in 600° C. air are similar to those obtained with liquid lubricants operating under boundary lubrication conditions at much lower temperatures.

    摘要翻译: 提供了一种在硅基陶瓷上生产高温润滑玻璃膜的方法。 该方法包括以下步骤:(a)氧化硅基组分,(b)用碱金属化合物涂覆氧化组分,和(c)在富含硫的氧化环境中将组分加热至高温。 在600℃空气中用该系统获得的稳态滑动摩擦系数值与在低得多的边界润滑条件下运行的液体润滑剂获得的相似。

    High temperature rolling element bearing
    4.
    发明授权
    High temperature rolling element bearing 失效
    高温滚动体轴承

    公开(公告)号:US5752773A

    公开(公告)日:1998-05-19

    申请号:US828725

    申请日:1997-03-14

    IPC分类号: F16C33/44 F16C33/56

    摘要: A novel rolling element bearing assembly comprises an inner race, an outer race, a plurality of rolling elements, and a carbon-carbon composite retainer. The carbon-carbon composite retainer is fabricated by providing a woven tube, cutting the woven tube into suitably sized rings, piercing the rings for rolling bearing elements, and densifying the resulting retainer. Alternatively, the tube can be densified, then cut into a plurality of retainer blanks which are then pierced. For use at operating temperatures above about 650.degree. C., ceramic coatings, such as silicon carbide (SiC), silicon nitride (Si.sub.3 N.sub.4) and boron nitride (BN) can be used to provide oxidation resistance for the carbon-carbon composite retainer at such elevated temperatures.

    摘要翻译: 一种新型的滚动体轴承组件,包括内圈,外圈,多个滚动元件和碳 - 碳复合保持器。 碳 - 碳复合保持器通过提供编织管,将编织管切割成合适尺寸的环,刺穿用于滚动轴承元件的环,并使得到的保持器致密而制造。 或者,管可以致密化,然后切割成多个保持器坯件,然后将其穿孔。 为了在高于约650℃的操作温度下使用,可以使用碳化硅(SiC),氮化硅(Si 3 N 4)和氮化硼(BN)等陶瓷涂层来提供碳 - 碳复合保持器的抗氧化性 升高的温度。