Chemical-free production of graphene-reinforced inorganic matrix composites

    公开(公告)号:US10850496B2

    公开(公告)日:2020-12-01

    申请号:US14998729

    申请日:2016-02-09

    Abstract: Provided is a simple, fast, scalable, and environmentally benign method of producing a graphene-reinforced inorganic matrix composite directly from a graphitic material, the method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of an inorganic solid carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of solid inorganic carrier material particles to produce graphene coated or graphene-embedded inorganic particles inside the impacting chamber; and (c) forming graphene-coated or graphene-embedded inorganic particles into the graphene-reinforced inorganic matrix composite. Also provided is a mass of the graphene-coated or graphene-embedded inorganic particles produced by this method.

    Method for controlling the diameter of a single crystal to a set point diameter
    6.
    发明授权
    Method for controlling the diameter of a single crystal to a set point diameter 有权
    用于将单晶体的直径控制到设定点直径的方法

    公开(公告)号:US09340897B2

    公开(公告)日:2016-05-17

    申请号:US14285752

    申请日:2014-05-23

    Applicant: SILTRONIC AG

    Inventor: Thomas Schroeck

    CPC classification number: C30B15/22 C30B15/26 C30B29/00 C30B29/06

    Abstract: The diameter of a single crystal is controlled to a set point diameter during pulling of the single crystal from a melt contained in a crucible and which forms a meniscus at a phase boundary on the edge of the single crystal, the meniscus having a height which corresponds to the distance between the phase boundary and a level of the surface of the melt outside the meniscus, comprising repeatedly: determining the diameter of a bright ring on the meniscus; calculating a diameter of the single crystal while taking into account the diameter of the bright ring and the dependency of the diameter of the bright ring on the height of the meniscus and on the diameter of the single crystal itself; and calculating at least one manipulated variable for controlling the diameter of the single crystal on the basis of the difference between the calculated diameter of the single crystal and the set point diameter of the single crystal.

    Abstract translation: 在单晶体从包含在坩埚中的熔体中拉出单晶并且在单晶边缘处的相边界处形成弯液面时,单晶的直径被控制到设定点直径,弯液面的高度对应于 相对于弯液面以外的相边界和熔体表面的水平之间的距离,包括重复:确定弯月面上的亮环的直径; 计算单晶的直径,同时考虑到亮环的直径和亮环的直径对弯液面的高度和单晶本身的直径的依赖性; 并且基于计算的单晶体的直径和单晶的设定点直径之间的差来计算用于控制单晶直径的至少一个操作变量。

    Carbon grit
    7.
    发明授权
    Carbon grit 有权
    碳砂

    公开(公告)号:US08641999B2

    公开(公告)日:2014-02-04

    申请号:US11178622

    申请日:2005-07-11

    CPC classification number: C30B25/105 C01B32/05 C01B32/25 C30B29/04

    Abstract: Plasma assisted chemical vapor deposition is used to form single crystal diamond from a seed and methane. A susceptor is used to support the seed. Under certain conditions, crystalline grit is formed in addition to the diamond. The crystalline grit in one embodiment comprises mono crystals or twin crystals of carbon, each having its own nucleus. The crystals form in columns or tendrils to the side of the monocrystalline diamond or off a side of the susceptor. The crystals may have bonding imperfections which simulate doping, providing conductivity. They may also be directly doped. Many tools may be coated with the grit.

    Abstract translation: 等离子辅助化学气相沉积用于从种子和甲烷形成单晶金刚石。 一只感受器用于支撑种子。 在某些条件下,除了金刚石之外还形成结晶砂粒。 在一个实施方案中的结晶砂粒包括单晶或双晶碳,每个具有其自身的核。 晶体在柱状或卷须形成单晶金刚石侧面或离开感受器的一侧。 晶体可能具有模拟掺杂的键合缺陷,提供电导率。 它们也可以直接掺杂。 许多工具可能涂上砂砾。

Patent Agency Ranking