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    Method for producing ceramic objects
    66.
    发明申请
    Method for producing ceramic objects 审中-公开
    陶瓷制品的制造方法

    公开(公告)号：US20060198916A1

    公开(公告)日：2006-09-07

    申请号：US10551740

    申请日：2004-04-01

    申请人： Alexander Beeck ,  Boris Bublath ,  Nikolai-Alexander Daus ,  Dirk Goldschmidt

    发明人： Alexander Beeck ,  Boris Bublath ,  Nikolai-Alexander Daus ,  Dirk Goldschmidt

    IPC分类号： B28B7/00

    CPC分类号： C04B35/64 ,  B28B1/00 ,  B28B1/001 ,  B29C64/153 ,  B29K2709/02 ,  B33Y10/00 ,  B33Y70/00 ,  C04B2235/6026 ,  C04B2235/665

    摘要： A process for forming a ceramic object using selective laser sintering of ceramic powder is provided. The chemical composition and size distribution of the powder may be varied between various regions of the object, and the temperature achieved by laser heating may be varied between regions to achieve the desired degree of densification. In one embodiment, a ceramic mold (1) is formed in to have an envelope portion (4) and a core portion (7) with differing properties using a fast prototyping laser sintering process.

    摘要翻译： 提供了使用陶瓷粉末的选择性激光烧结形成陶瓷物体的方法。 粉末的化学组成和尺寸分布可以在物体的各个区域之间变化，并且通过激光加热实现的温度可以在区域之间变化以实现期望的致密度。 在一个实施例中，使用快速原型激光烧结工艺形成陶瓷模具（1）以具有不同性质的封套部分（4）和芯部（7）。

    Method for making ceramic work piece and cermet work piece
    67.
    发明申请
    Method for making ceramic work piece and cermet work piece 审中-公开
    制作陶瓷工件和金属陶瓷工件的方法

    公开(公告)号：US20060119017A1

    公开(公告)日：2006-06-08

    申请号：US11000953

    申请日：2004-12-02

    申请人： Hwa-Hsing Tang

    发明人： Hwa-Hsing Tang

    IPC分类号： C03B29/00 ,  B28B3/00 ,  B28B1/00

    CPC分类号： C04B35/6316 ,  B22F3/105 ,  B22F7/06 ,  B28B1/00 ,  B28B1/001 ,  B29C64/00 ,  C04B28/001 ,  C04B28/24 ,  C04B28/26 ,  C04B28/34 ,  C04B28/344 ,  C04B35/62655 ,  C04B35/6309 ,  C04B35/64 ,  C04B2111/00181 ,  C04B2235/3418 ,  C04B2235/3427 ,  C04B2235/6026 ,  C04B2235/665 ,  C04B14/30 ,  C04B22/062 ,  C04B40/0003 ,  C04B40/0082 ,  C04B14/06

    摘要： Method for making ceramic work piece or cermet work piece is realized by utilizing a multi-layer processing method. Several kinds of materials are mixed to form slurry. Then the slurry is formed into a thin green layer, which will be dried by infrared light, so that the thin green layer will be hardened. Next, the thin green layer exposed under a high-energy beam is sintered to bond together locally due to heat effect at different temperature levels, respectively. After multiple repetitions of this procedure a three-dimensional ceramic part or cermet part can be fabricated layer upon layer. The green portion, which is not scanned by the high-energy beam, can be removed with suitable methods, such as submerged in water or sodium hydroxide water solution, due to disparate characteristics of scanned and unscanned portions. A ceramic part or a cermet part can be rapidly produced in this way.

    摘要翻译： 陶瓷工件或金属陶瓷工件的制造方法是利用多层加工方法实现的。 混合几种材料形成浆料。 然后将浆料形成为通过红外光干燥的薄的绿色层，使得较薄的绿色层变硬。 接下来，在高能量束下暴露的薄的绿色层分别由于在不同温度水平下的热效应而局部地结合在一起。 在多次重复该程序之后，可以在层上制造三维陶瓷部件或金属陶瓷部件。 由于扫描和未扫描部分的不同特征，可以用适当的方法（例如浸没在水或氢氧化钠水溶液中）去除未被高能束扫描的绿色部分。 陶瓷部件或金属陶瓷部件可以以这种方式快速生产。

    Microwave assisted reactive brazing of ceramic materials
    68.
    发明授权
    Microwave assisted reactive brazing of ceramic materials 失效
    陶瓷材料的微波辅助反应钎焊

    公开(公告)号：US07022198B2

    公开(公告)日：2006-04-04

    申请号：US10672271

    申请日：2003-09-26

    申请人： Ralph W. Bruce ,  David Lewis, III ,  Manfred Kahn ,  Arne W. Fliflet ,  Steven H. Gold

    发明人： Ralph W. Bruce ,  David Lewis, III ,  Manfred Kahn ,  Arne W. Fliflet ,  Steven H. Gold

    IPC分类号： C04B37/00 ,  B32B37/06

    CPC分类号： C04B37/005 ,  B32B2315/02 ,  C04B35/64 ,  C04B2235/665 ,  C04B2235/667 ,  C04B2237/10 ,  C04B2237/343 ,  H05B6/80

    摘要： A method for joining similar materials to create multi-component assemblies so the joint materials share similar physical, chemical, and electrical characteristics with the base materials. The method includes aligning the materials, applying joining material, focusing a microwave beam on the joint area to initially heat the joint area to allow the joining material to soften and fill physical discontinuities while the surrounding surfaces remains cool, rapidly heating the joint area to the reactive area of the joining material, rapidly cooling the joint area and maintaining the joint area at a recrystallization temperature. The materials can be ceramics such as aluminum oxide.

    摘要翻译： 用于连接类似材料以产生多组分组件的方法，使得接合材料与基材共享相似的物理，化学和电学特性。 该方法包括对准材料，施加接合材料，将微波束聚焦在接合区域上，以最初加热接合区域，以允许接合材料软化并填充物理不连续性，同时周围表面保持冷却，将接头区域快速加热至 接合材料的反应面积，快速冷却接合面积，并将接合面积维持在再结晶温度。 该材料可以是诸如氧化铝的陶瓷。