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    • 96. 发明授权
    • Microporous graphite foam and process for producing same
    • 微孔石墨泡沫及其制造方法
    • US07939046B2
    • 2011-05-10
    • US10872933
    • 2004-06-21
    • Philip Christopher Theriault
    • Philip Christopher Theriault
    • C01B31/00C01B31/04B29C65/00
    • C04B38/0054C04B35/83C04B38/0022C04B2111/00793C04B2111/0081C04B2111/00844C04B2111/00853C04B2111/40C04B2235/48C04B2235/5248C04B38/0074
    • A process for producing a microporous graphite foam including a matrix of graphite fibers joined by a graphitized graphite-forming precursor. In one embodiment, the process includes providing a plurality of graphite fibers; mixing the graphite fibers with a graphite-forming precursor; compressing the mixture; forming a precursor matrix comprising the graphite fiber and the graphite-forming precursor; first heating the matrix to a temperature at which the graphite-forming precursor is carbonized, forming a carbonized matrix; and second heating the carbonized matrix to a temperature at which the carbonized graphite-forming precursor is graphitized, forming the microporous graphite foam. The graphite foam has one or more of pore sizes less than about ten microns, low bulk density, high physical strength and good machinability, while also having the desirable characteristics of graphite, including high thermal conductivity, electrical conductivity and solderability.
    • 一种生产微孔石墨泡沫的方法,其包括通过石墨化石墨形成前体连接的石墨纤维的基体。 在一个实施方案中,该方法包括提供多个石墨纤维; 将石墨纤维与形成石墨的前体混合; 压缩混合物; 形成包含石墨纤维和形成石墨的前体的前体基质; 首先将基质加热到石墨形成前体碳化的温度,形成碳化基质; 并且将碳化基质第二次加热到碳化石墨形成前体被石墨化的温度,形成微孔石墨泡沫体。 石墨泡沫具有小于约十微米,低堆积密度,高物理强度和良好机械加工性的孔径中的一种或多种,​​同时具有包括高导热性,导电性和可焊性的石墨所需的特性。