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    • 3. 发明授权
    • Semi-solid concentration processing of metallic alloys
    • 金属合金的半固体浓缩加工
    • US06428636B2
    • 2002-08-06
    • US09361336
    • 1999-07-26
    • Don DoutreGary HayPeter Wales
    • Don DoutreGary HayPeter Wales
    • B22D2704
    • B22D17/007C22C1/005C22C21/02Y10S164/90
    • A metallic alloy having a semi-solid range between the liquidus temperature and the solidus temperature of the metallic alloy is processed by cooling the metallic alloy from an initial metallic alloy elevated temperature to a semi-solid temperature of less than the liquidus temperature and more than the solidus temperature, and maintaining the metallic alloy at the semi-solid temperature for a sufficient time to produce a semi-solid structure in the metallic alloy of a globular solid phase dispersed in a liquid phase. The cooling may be accomplished by providing a crucible at a crucible initial temperature below the solidus temperature, pouring the metallic alloy into the crucible, and allowing the metallic alloy and the crucible to reach a thermal equilibrium between the liquidus temperature and the solidus temperature of the metallic alloy. The method further includes removing at least some, but not all, of the liquid phase present in the semi-solid structure of the metallic alloy to form a solid-enriched semi-solid structure of the metallic alloy, and forming the metallic alloy having the solid-enriched semi-solid structure into a shape.
    • 通过将金属合金从初始金属合金升高温度冷却至低于液相线温度的半固体温度,将金属合金的液固温度和金属合金的固相线温度之间的半固体范围的金属合金加工成 固相线温度,并将金属合金在半固态温度下保持足够的时间以在分散在液相中的球形固相的金属合金中产生半固体结构。 冷却可以通过在低于固相线温度的坩埚初始温度下提供坩埚,将金属合金倒入坩埚中,并使金属合金和坩埚达到液相线温度与液相线温度之间的热平衡 金属合金。 该方法还包括去除金属合金的半固体结构中存在的至少一些但不是全部的液相,以形成金属合金的富集固体的半固体结构,并且形成具有 固体富集半固体结构成形。
    • 4. 发明授权
    • Preparation of metal-matrix composite materials with high particulate loadings by concentration
    • 通过浓缩制备高颗粒负荷的金属基复合材料
    • US06257312B1
    • 2001-07-10
    • US09131131
    • 1998-08-07
    • Don DoutreGary HayIljoon JinPeter WalesDavid J. Lloyd
    • Don DoutreGary HayIljoon JinPeter WalesDavid J. Lloyd
    • B22D1914
    • C22C1/1036C22C1/1094C22C2001/1047H01L23/15H01L23/3733H01L2924/0002H01L2924/00
    • A composite material having less than about 25 volume percent refractory particles in a metal matrix is concentrated to have about 37-45 volume percent refractory particles. The concentrating is accomplished by heating the composite material to melt the matrix, and then contacting the molten composite material to a porous element having an average pore size greater than that of the average particle size. A small pressure differential, on the order of about one atmosphere, is applied across the porous element, so that metal matrix material separates from the composite material and flows through the porous element. The particulate volume fraction in the composite material gradually increases. When the particulate volume fraction exceeds about 37 volume percent, the mass of composite material becomes semi-solid and freestanding. The resulting composite material may be further processed, as by forming to a useful shape or diluting with another matrix material.
    • 在金属基质中具有少于约25体积%的难熔颗粒的复合材料被浓缩以具有约37-45体积%的耐火颗粒。 浓缩通过加热复合材料以熔化基质,然后使熔融的复合材料与平均孔径大于平均粒径的多孔元件接触来实现。 大约一个大气压的小压差施加在多孔元件上,使得金属基质材料与复合材料分离并流过多孔元件。 复合材料中的颗粒体积分数逐渐增加。 当颗粒体积分数超过约37体积%时,复合材料的质量变成半固体和独立的。 所得到的复合材料可以进一步加工,如通过形成有用的形状或用另一种基质材料稀释。
    • 8. 发明申请
    • MEMORY SYSTEM WITH REDUNDANT DATA STORAGE AND ERROR CORRECTION
    • 具有冗余数据存储和错误校正的存储器系统
    • US20110083041A1
    • 2011-04-07
    • US12995297
    • 2008-06-20
    • Michael RohlederGary HayStephan MuellerManfred Thanner
    • Michael RohlederGary HayStephan MuellerManfred Thanner
    • G06F11/14
    • G06F11/167G11C29/74G11C2029/0411
    • A system comprises at least two random access memory (RAM) elements arranged to store data redundantly. The system further comprises RAM routing logic comprising comparison logic operably coupled to the at least two RAM elements and arranged to compare redundant data read from the at least two RAM elements, and check and validation logic, independent of the RAM routing logic, operably coupled to the at least two RAM elements and arranged to additionally detect an error in the redundant data read from the at least two RAM elements and provide an error indication signal to the RAM routing logic in response thereto. The RAM routing logic further comprises selection logic arranged to dynamically select redundant data from one of the at least two RAM elements based on the comparison of the redundant data and the error indication signal.
    • 系统包括被布置为冗余地存储数据的至少两个随机存取存储器(RAM)元件。 所述系统还包括RAM路由逻辑,其包括可操作地耦合到所述至少两个RAM元件的比较逻辑,并且被布置为比较从所述至少两个RAM元素读取的冗余数据,以及独立于所述RAM路由逻辑的检查和验证逻辑,其可操作地耦合到 所述至少两个RAM元件并且被布置为附加地检测从所述至少两个RAM元素读取的冗余数据中的错误,并且响应于此向RAM路由逻辑提供错误指示信号。 RAM路由逻辑还包括选择逻辑,其被布置为基于冗余数据和错误指示信号的比较来动态地从至少两个RAM元素中的一个RAM元素中选择冗余数据。
    • 9. 发明授权
    • Portable liquid metal filtration device for inclusion analysis
    • 便携式液态金属过滤装置进行夹杂分析
    • US5827982A
    • 1998-10-27
    • US810152
    • 1997-02-25
    • Don Allen DoutreGary HayPeter Alexander Wales
    • Don Allen DoutreGary HayPeter Alexander Wales
    • F27D3/14F27D21/00G01N1/28G01N33/20G01N1/00C21B3/04G01N11/00
    • G01N1/4077F27D21/00F27D3/14G01N33/206
    • A device for measuring metal purity, comprising a receptacle for holding a sample of molten metal, the receptacle being made, at least internally, from an insulating refractory material and having a bottom wall provided with a hole containing a filter element. The bottom wall is substantially impermeable to air except at the hold. An enclosed collection vessel is positioned below the receptacle for collecting molten metal which passes through the filter element from the receptacle, the collection vessel having an opening permitting extraction of gas from within the vessel to enable a vacuum to be generated within the vessel during use of the device. A leak-tight seal is established between the receptacle for molten metal and the collection vessel to permit vacuum generated in the collection vessel to draw molten metal into the collection vessel from the receptacle through the filter. The receptacle for molten metal has a heat diffusivity value that is sufficiently low that, in use, the temperature of the molten metal in the receptacle does not fall below the liquidus temperature in a period of time required for the vacuum to draw a fixed amount of molten metal sufficient for metal purity testing purposes through the filter and into the collection vessel from the receptacle. The invention also relates to a corresponding method, and to novel parts of the device.
    • 一种用于测量金属纯度的装置,包括用于保持熔融金属样品的容器,所述容器至少在内部由绝缘耐火材料制成,并且具有设置有包含过滤元件的孔的底壁。 除了保持之外,底壁基本上不可透过空气。 封闭的收集容器位于容器下面,用于收集从容器通过过滤元件的熔融金属,收集容器具有允许从容器内提取气体的开口,以使得在使用期间能够在容器内产生真空 装置。 在用于熔融金属的容器和收集容器之间建立密封密封,以允许在收集容器中产生的真空从容器通过过滤器将熔融金属吸入收集容器中。 用于熔融金属的容器具有足够低的热扩散率值,在使用中,容器中的熔融金属的温度在真空抽取固定量的时间段内不会低于液相线温度 熔融金属足以通过过滤器进行金属纯度测试,并从容器进入收集容器。 本发明还涉及相应的方法以及该装置的新颖部分。