利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

135 条记录 (耗时 0.031 秒)

    Amorphous metal foam as a property-matched bone scaffold substitute
    1.
    发明授权
    Amorphous metal foam as a property-matched bone scaffold substitute 有权
    无定形金属泡沫作为属性匹配的骨架替代品

    公开(公告)号：US08444745B2

    公开(公告)日：2013-05-21

    申请号：US11891992

    申请日：2007-08-13

    申请人： Marios D. Demetriou ,  John S. Harmon ,  William L. Johnson ,  Chris Veazey

    发明人： Marios D. Demetriou ,  John S. Harmon ,  William L. Johnson ,  Chris Veazey

    IPC分类号： C22C45/00 ,  C22C1/08

    CPC分类号： C22C5/04 ,  C22C1/08 ,  C22C45/003 ,  C22C2001/086

    摘要： Amorphous metal foams and methods of making the same are provided. The amorphous metal foams have properties matching those of natural bone, enabling their use as bone replacement scaffolds. In one embodiment, for example, an amorphous metal foam has a density-dependent stiffness (or Young's modulus, denoted E) ranging from about 640ρ3.75 τo αβouτ 2900ρ0.78, and a density dependent strength (σy) greater than about 8.1ρ2.57, wherein ρ (the density) is less than about 1.7 g/cc.

    摘要翻译： 提供无定形金属泡沫及其制备方法。 非晶金属泡沫具有与天然骨相匹配的特性，使其能够用作骨替代支架。 在一个实施方案中，例如，非晶态金属泡沫体具有密度依赖性刚度（或称为E的杨氏模量），范围为约640rho3.75牛油字母表2900rho0.78，密度依赖强度（sigmay）大于约8.1rho2 57，其中rho（密度）小于约1.7g / cc。

    Ni and cu free Pd-based metallic glasses
    8.
    发明授权
    Ni and cu free Pd-based metallic glasses 有权
    Ni和cu游离的Pd基金属玻璃

    公开(公告)号：US08911568B2

    公开(公告)日：2014-12-16

    申请号：US13327262

    申请日：2011-12-15

    申请人： Marios D. Demetriou ,  William L. Johnson

    发明人： Marios D. Demetriou ,  William L. Johnson

    IPC分类号： C22C45/00

    CPC分类号： C22C45/003

    摘要： The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.

    摘要翻译： 本发明涉及可用于不具有Ni或Cu的生物医学应用中的Pd基金属玻璃合金。 示例性金属玻璃合金由AaBb {（Si）100-c（D）c} d表示，其中A可以选自Pd，Pd和Pt，B的组合可以选自Ag，Au，Co，Fe， 并且D可以选自P，Ge，B，S。此外，a，b，c和d是原子百分数，a在约60至约90的范围内，b在约2至约18的范围内， d的范围为约5至约25，且c大于0且小于100。

    Forming of metallic glass by rapid capacitor discharge forging
    9.
    发明授权
    Forming of metallic glass by rapid capacitor discharge forging 有权
    通过快速电容器放电锻造形成金属玻璃

    公开(公告)号：US08613814B2

    公开(公告)日：2013-12-24

    申请号：US13272955

    申请日：2011-10-13

    申请人： Georg Kaltenboeck ,  Joseph P. Schramm ,  Marios D. Demetriou ,  William L. Johnson

    发明人： Georg Kaltenboeck ,  Joseph P. Schramm ,  Marios D. Demetriou ,  William L. Johnson

    IPC分类号： C22F1/10 ,  B23K15/00

    CPC分类号： B21J5/06 ,  C21D1/34 ,  C21D1/38 ,  C21D1/40 ,  C21D7/13 ,  C21D2201/03 ,  C22C45/00 ,  C22C45/003 ,  C22F1/00

    摘要： A forging apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via forging in a time frame of less than 1 second.

    摘要翻译： 提供使用快速电容器放电成形（RCDF）工具将金属玻璃均匀加热，流变软化和热塑性形成为网状的锻造装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，则可以在小于1秒的时间内通过锻造将其成型为高质量的非晶块状物品。

    Forming of metallic glass by rapid capacitor discharge
    10.
    发明授权
    Forming of metallic glass by rapid capacitor discharge 有权
    通过快速电容放电形成金属玻璃

    公开(公告)号：US08613813B2

    公开(公告)日：2013-12-24

    申请号：US12409253

    申请日：2009-03-23

    申请人： William L. Johnson ,  Marios D. Demetriou ,  Choong Paul Kim ,  Joseph P. Schramm

    发明人： William L. Johnson ,  Marios D. Demetriou ,  Choong Paul Kim ,  Joseph P. Schramm

    IPC分类号： C22F1/10 ,  B23K15/00

    CPC分类号： C21D7/13 ,  B21J9/08 ,  C21D1/34 ,  C21D1/38 ,  C21D1/40 ,  C21D2201/03 ,  C22C45/00 ,  C22C45/003 ,  C22C45/02 ,  C22C45/10 ,  C22F1/00 ,  C22F1/14 ,  C22F1/186 ,  H05B3/0004

    摘要： An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of less than 1 second.

    摘要翻译： 提供了使用快速电容器放电形成（RCDF）工具将金属玻璃均匀地加热，流变软化和热塑性地形成网状的装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，它可以通过任何数量的技术成型为高品质的非晶块状物品，包括例如注射成型，动态锻造，冲压锻造和吹塑 在不到1秒的时间内。