Method and Article of Manufacture Corresponding To a Composite Comprised of Ultra Nanocrystalline Diamond, Metal, and Other Nanocarbons Useful for Thermoelectric and Other Applications
    31.
    发明申请
    Method and Article of Manufacture Corresponding To a Composite Comprised of Ultra Nanocrystalline Diamond, Metal, and Other Nanocarbons Useful for Thermoelectric and Other Applications 有权
    对应于包含超级纳米晶金刚石,金属和其他纳米碳化合物的复合材料的制造方法和制品适用于热电及其他应用

    公开(公告)号:US20070137684A1

    公开(公告)日:2007-06-21

    申请号:US11674810

    申请日:2007-02-14

    Applicant: Dieter Gruen

    Inventor: Dieter Gruen

    Abstract: One provides (101) disperse ultra-nanocrystalline diamond powder material that comprises a plurality of substantially ordered crystallites that are each sized no larger than about 10 nanometers. One then reacts (102) these crystallites with a metallic component. The resultant nanowire is then able to exhibit a desired increase with respect to its ability to conduct electricity while also substantially preserving the thermal conductivity behavior of the disperse ultra-nanocrystalline diamond powder material. The reaction process can comprise combining (201) the crystallites with one or more metal salts in an aqueous solution and then heating (203) that aqueous solution to remove the water. This heating can occur in a reducing atmosphere (comprising, for example, hydrogen and/or methane) to also reduce the salt to metal.

    Abstract translation: 一种提供(101)分散超细晶金刚石粉末材料,其包括多个基本上有序的微晶,每个晶体尺寸不大于约10纳米。 然后,将这些微晶与金属成分反应(102)。 然后,所得到的纳米线能够表现出对其导电能力的期望的增加,同时还基本上保持了分散的超纳米晶金刚石粉末材料的热导性能。 反应过程可以包括将晶体与水溶液中的一种或多种金属盐结合(201),然后加热(203)该水溶液以除去水。 这种加热可以在还原气氛(包括例如氢和/或甲烷)中发生,也可以将盐还原成金属。

    Titanium boride coatings on titanium surfaces and associated methods
    34.
    发明申请
    Titanium boride coatings on titanium surfaces and associated methods 有权
    钛表面钛硼化物涂层及相关方法

    公开(公告)号:US20050208213A1

    公开(公告)日:2005-09-22

    申请号:US11122119

    申请日:2005-05-03

    Abstract: A borided titanium article can include a titanium mass having titanium monoboride whiskers infiltrating inward from a surface of the titanium mass to form an integral surface hardened region. The titanium mass can be almost any titanium based metal or alloy such as high purity titanium, commercial grade titanium, α-titanium alloy, α+β titanium alloy, β-titanium alloy, titanium composite, and combinations thereof. Borided titanium articles can be formed by methods which include providing a titanium mass, contacting a surface of the titanium mass with a boron source medium, and heating the titanium mass and boron source medium to a temperature from about 700° C. to about 1600° C. The boron source medium can include a boron source and an activator selected to provide growth of titanium monoboride whiskers. The boron source medium can be provided as a solid particulate mixture, liquid mixture, or as a gaseous mixture. During heating, boron from the boron source infiltrates into the titanium mass and forms titanium monoboride whiskers which improve the surface hardness, wear resistance, oxidation resistance, and corrosion resistance of the treated surface. The titanium monoboride whiskers can be controlled to have the desired dimensions, depending on the application requirements. Boriding titanium surfaces using these methods, provides a relatively inexpensive and effective process for improving the surface properties of titanium which are then useful in a wide variety of applications.

    Abstract translation: 硼化钛制品可以包括具有从钛质材料表面向内渗透的钛单硼酸晶须的钛块,以形成整体表面硬化区域。 钛质量可以是几乎任何钛基金属或合金,例如高纯度钛,商业级钛,α-钛合金,α+β钛合金,β-钛合金,钛复合材料及其组合。 硼化钛制品可以通过以下方法形成:包括提供钛材料,使钛材料的表面与硼源介质接触,并将钛材料和硼源介质加热至约700℃至约1600℃的温度 硼源培养基可以包括硼源和选择用于提供单硼酸钛晶须生长的活化剂。 硼源介质可以作为固体颗粒混合物,液体混合物或作为气体混合物提供。 在加热过程中,来自硼源的硼渗透入钛质体中,形成了改善处理表面的表面硬度,耐磨性,抗氧化性和耐蚀性的钛单硼酸晶须。 根据应用要求,可以将钛单硼酸晶须控制为具有所需的尺寸。 使用这些方法的硼化钛表面提供了用于改善钛的表面性质的相对便宜且有效的方法,其然后可用于各种各样的应用中。

    Alumina sintered body and method for manufacturing the same

    公开(公告)号:US11998986B2

    公开(公告)日:2024-06-04

    申请号:US18145994

    申请日:2022-12-23

    Applicant: CoorsTek KK

    Abstract: An alumina sintered body having a low dielectric loss tangent and a method for manufacturing the alumina sintered body are provided. An alumina sintered body contains Al2O3 99.50 mass % or more, and 99.95 mass % or less and sodium and silicon, wherein at a surface layer A in any given cross-section and a central portion B of the cross-section in a depth direction from the surface layer A, a concentration ratio of sodium to silicon in the surface layer A is smaller than the concentration ratio of sodium to silicon at the central portion B.

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