会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Handheld microcantilever-based sensor for detecting tobacco-specific nitrosamines
    • 用于检测烟草特异性亚硝胺的手持式微型悬臂梁传感器
    • US07709264B2
    • 2010-05-04
    • US11902041
    • 2007-09-18
    • Seetharama C. DeeviFang Tian
    • Seetharama C. DeeviFang Tian
    • G01N33/00
    • G01N29/022G01N33/0047G01N2291/0255G01N2291/0256Y10T436/170769
    • A method and system for detecting tobacco-specific nitrosamines. The method includes exposing at least one microcantilever beam to a medium, which may contain tobacco-specific nitrosamines, and measuring a deflection of the microcantilever beam, wherein the deflection indicates a presence of tobacco-specific nitrosamines in the medium. The at least one microcantilever beam can include a silicon base layer and a gold-coated receptor layer with a plurality of thiol molecules having a sulfur head and carboxyl-terminated group. The at least one microcantilever beam can include a silicon base layer and a metal or metal oxide coated receptor layer. Alternatively, the microcantilever beam can be formed by co-absorbing tobacco-specific nitrosamines and silane molecules on a silicon microcantilever surface, wherein the template molecules of tobacco-specific nitrosamines physically co-adsorb between the silane molecules. The template molecules of tobacco-specific nitrosamines are then washed away with a solvent to form a silane monolayer having tobacco-specific nitrosamine cavities.
    • 一种用于检测烟草特异性亚硝胺的方法和系统。 该方法包括将至少一个微悬臂梁暴露于介质中,该培养基可含有烟草特异性亚硝胺,并测量微悬臂梁的挠曲,其中偏转指示介质中烟草特异性亚硝胺的存在。 所述至少一个微悬臂梁可以包括具有硫头和羧基封端基团的多个硫醇分子的硅基层和金涂覆的受体层。 所述至少一个微悬臂梁可以包括硅基层和金属或金属氧化物涂覆的受体层。 或者,可以通过在硅微悬臂梁表面上共同吸收烟草特异性亚硝胺和硅烷分子来形成微悬臂梁,其中烟草特异性亚硝胺的模板分子物理共吸附在硅烷分子之间。 然后用溶剂洗涤烟草特异性亚硝胺的模板分子以形成具有烟草特异性亚硝胺腔的硅烷单层。
    • 6. 发明授权
    • Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders
    • 通过铝化物粉末的热机械加工制造铝化物片的方法
    • US06660109B2
    • 2003-12-09
    • US09984871
    • 2001-10-31
    • Mohammad R. HajaligolClive ScoreyVinod K. SikkaSeetharama C. DeeviGrier FleishhauerA. Clifton Lilly, Jr.Randall M. German
    • Mohammad R. HajaligolClive ScoreyVinod K. SikkaSeetharama C. DeeviGrier FleishhauerA. Clifton Lilly, Jr.Randall M. German
    • C21D800
    • C22C33/0278B22F3/18B22F5/006B22F9/082B22F2003/248B22F2009/0824B22F2009/088B22F2998/10C21D8/0205C21D8/0236C21D8/0273C22C1/0491B22F3/115B22F3/16B22F3/24
    • A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr ≦2% Ti, ≦2% Mo, ≦1% Ni, ≦0.75% C, ≦0.1% B, ≦1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, and/or ≦3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 &mgr;m. Final stress relief annealing can be carried out in the B2 phase temperature range.
    • 从具有金属间合金组成如粉末铁,镍或钛铝化物的粉末制备片材的粉末冶金方法。 可以将片材制造成具有改善的室温延展性,电阻率,耐循环疲劳性,耐高温氧化性,低和高温强度和/或耐高温下垂的电阻加热元件。 铁铝化物具有完全不含奥氏体的铁素体组织,并且可以以重量%计含有4至32%的Al和任选的添加物,例如<= 1%Cr,> = 0.05%Zr <= 2%Ti, = 2%Mo,<= 1%Ni,≤= 0.75%C,<= 0.1%B,≤1%亚微米级氧化物颗粒和/或电绝缘或导电共价陶瓷颗粒,≤1%稀土金属, 和/或<= 3%Cu。 该方法包括通过将具有金属间化合物组合物的粉末如通过辊压,带铸或等离子体喷涂固结形成非致密金属片,通过冷轧非致密金属片形成冷轧板,以增加 密度并减小其厚度并退火冷轧板。 粉末可以是在固结步骤之前与粘合剂进行筛分和/或共混的水,聚合物或气体雾化粉末。 在固结步骤之后,片材可以部分烧结。 可以重复冷轧和/或退火步骤以实现所需的板厚度和性能。 退火可以在真空或惰性气氛的真空炉中进行。 在最终退火期间,冷轧板再结晶至平均粒径约为10〜30μm。 最终的应力消除退火可以在B2相温度范围内进行。
    • 7. 发明授权
    • Method of manufacturing iron aluminide by thermomechanical processing of elemental powers
    • 通过元素力的热机械加工制造铁铝化物的方法
    • US06284191B1
    • 2001-09-04
    • US09399160
    • 1999-09-20
    • Seetharama C. DeeviA. Clifton Lilly, Jr.Vinod K. SikkaMohammed R. Hajaligol
    • Seetharama C. DeeviA. Clifton Lilly, Jr.Vinod K. SikkaMohammed R. Hajaligol
    • C22C104
    • C22C33/0278B22F2998/00B22F2998/10C22C1/0491C22C38/06B22F3/23B22F3/22B22F3/18
    • A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 20 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr or ZrO2 stringers extending perpendicular to an exposed surface of the heating element, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B, ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, and/or ≦3% Cu. The process includes forming a mixture of aluminum powder and iron powder, shaping the mixture into an article such as by cold rolling the mixture into a sheet, and sintering the article at a temperature sufficient to react the iron and aluminum powders and form iron aluminide. The sintering can be followed by hot or cold rolling to reduce porosity created during the sintering step and optional annealing steps in a vacuum or inert atmosphere.
    • 具有改善的室温延展性,电阻率,循环耐疲劳性,高温抗氧化性,低温和高温强度和/或耐高温下垂的电阻加热元件的制备铁铝化物的粉末冶金方法。 铁铝化物具有完全不含奥氏体的铁素体组织,并且可以以重量%计包含20至32%的Al和任选的添加物,例如<= 1%Cr,> = 0.05%Zr或ZrO2桁条,垂直于 加热元件的暴露表面<= 2%Ti,<= 2%Mo,≤1%Zr,≤1%C,<= 0.1%B,≤30%氧化物分散质和/或电绝缘或电 导电共价陶瓷颗粒,<= 1%稀土金属,<= 1%氧和/或≤3%Cu。 该方法包括形成铝粉和铁粉的混合物,将混合物成型为制品,例如通过将混合物冷轧成片材,并在足以使铁和铝粉末反应并形成铁铝化物的温度下烧结制品。 烧结之后可进行热轧或冷轧,以减少在烧结步骤中产生的孔隙率和在真空或惰性气氛中任选的退火步骤。