Method for the production of multiphase composite materials using microwave plasma process
    38.
    发明授权
    Method for the production of multiphase composite materials using microwave plasma process 有权
    使用微波等离子体工艺生产多相复合材料的方法

    公开(公告)号:US09242224B2

    公开(公告)日:2016-01-26

    申请号:US14208955

    申请日:2014-03-13

    摘要: Disclosed herein is a method to produce multiphase composite materials directly from solution precursor droplets by a fast pyrolysis process using a microwave plasma embodiment containing a microwave generating source, a dielectric plasma torch, and a droplet maker. Here, using homogenous solution precursors, droplets are generated with a narrow size distribution, and are injected and introduced into the microwave plasma torch with generally uniform thermal path. The generally uniform thermal path in the torch is achieved by axial injection of droplets into an axisymmetric hot zone with laminar flows. Upon exposing to high temperature within the plasma with controlled residence time, the droplets are pyrolyzed and converted into particles by quenching with a controlled rate of the exhaust gas in a gas chamber. The particles generated have generally uniform sizes and uniform thermal history, and can be used for a variety of applications.

    摘要翻译: 本文公开了一种通过使用包含微波发生源,介电等离子体焰炬和液滴制造器的微波等离子体实施例的快速热解法直接从溶液前驱体液滴产生多相复合材料的方法。 在这里,使用均匀的溶液前体,产生具有窄尺寸分布的液滴,并注入并引入具有大致均匀热路径的微波等离子体焰炬中。 通过将液滴轴向注入到具有层流的轴对称热区域中,可实现手电筒中大致均匀的热路径。 当以受控的停留时间暴露于等离子体内的高温时,液滴被热解并通过在气室中以受控的排气速率淬火而转化为颗粒。 产生的颗粒具有大致均匀的尺寸和均匀的热历史,并可用于各种应用。

    Heat-insulating material
    39.
    发明授权
    Heat-insulating material 有权
    绝热材料

    公开(公告)号:US09139448B2

    公开(公告)日:2015-09-22

    申请号:US13972040

    申请日:2013-08-21

    摘要: A heat-insulating material is provided in which thermal conductivity is controlled not to increase and good insulation properties are held even in a high temperature range. The heat-insulating material is formed of a spinel porous sintered body having a porosity of 65 to 90 vol. % and represented by a chemical formula XAl2O4 (X=Zn, Fe, Mg, Ni, or Mn) which is arranged such that large pores having a diameter of greater than 1000 μm occupy 25 vol. % or less of the total pore volume, fine pores having a diameter of 0.45 μm or less occupy 5 to 40 vol. % of the volume of the pores having a diameter of 1000 μm or less, at least one pore-diameter distribution peak is within a range of 0.14 to 10 μm, and is formed of sintered particles having a calculated average particle diameter of 0.04 to 1 μm.

    摘要翻译: 提供了一种绝热材料,其中热导率被控制为不增加,并且即使在高温度范围内也保持良好的绝缘性能。 隔热材料由孔隙率为65〜90体积的尖晶石多孔质烧结体构成。 %,由化学式XAl2O4(X = Zn,Fe,Mg,Ni或Mn)表示,其排列使得直径大于1000μm的大孔占据25体积%。 总孔体积的%以下,直径为0.45μm以下的细孔占据5〜40体积%。 直径为1000μm以下的孔的体积的%,至少一个孔径分布峰在0.14〜10μm的范围内,由计算出的平均粒径为0.04〜1的烧结体形成 μm。