• Firstprinciples investigation of elastic anomalies in ...

    Niobium does not show any structure transition up to very high pressures. Nonetheless, by using density functional theory, we demonstrate in this work that it exhibits striking softening in elastic moduli C44 and C′ at a pressure from 20 to 150 GPa. A novel anomaly …

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  • Novel high pressure structures and superconductivity of ...

    Novel high pressure structures and superconductivity of niobium disulfide. ... We have investigated the pressureinduced phase transition and superconducting properties of niobium disulfide ... elastic constants and phonon dispersion curves of I 4 / mmmNbS 2 confirm its mechanical and dynamical stability at high pressure.

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  • High pressure vacuum sintering furnace

    3. The special material: super alloy powder, the oxide dispersion strengthened materials, carbon and boron nitride dispersion strengthened materials, fiber reinforced material, high purity refractory metal (tantalum, niobium, molybdenum, tungsten, cy) composite metal and alloy, etc. In: A. Composite TiCX/Al powder with hot pressure Ti3AlC2.

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  • NIOBIUM – BoXinMetal Canada

    Its high level of resistance and excellent formability make niobium the perfect material for the crucibles used to manufacture synthetic polycrystalline diamonds (PCD). Our niobium crucibles are used for the highpressure, hightemperature synthesis.

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  • Origins of low and highpressure discontinuities of T_{c ...

    The nesting factor, Xq, of the Fermi surface in niobium at eight studied pressures (in GPa), for selected highsymmetry lines (top panel) and highsymmetry points (bottom panel).

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  • Niobium dioxide Wikipedia

    Niobium dioxide, is the chemical compound with the formula NbO 2. ... Two high pressure phases have been reported one with a rutilelike structure, again with short NbNb distances, ... The NbO 2 is subsequently reacted with magnesium vapour to produce niobium metal.

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  • Niobium Oxide (Nb2O5) Product Information Starck

    As a dopant, niobium pentoxide improves the piezoelectric performance of lead zirconate titanate (PZT). Thanks to electronically controlled piezo actors, highpressure diesel injection enables greater efficiency in the automobile industry due to shorter reaction times.

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  • HighPressure Torsion for Pure Chromium and Niobium ...

    HighPressure Torsion for Pure Chromium and Niobium 41 Fig. 5 TEM micrographs and SAED patterns of Cr: under P = 2 GPa for (a) 2 revolutions and (b) 5 revolutions, and under P = 6 GPa for (c) 2 revolutions and (d) 4 revolutions.

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  • Niobium Tube Pipe Pure Metals SAMaterials

    Niobium tube and niobium pipe are in gray metal color with high strength and conductivity. They are used in steel, ceramics, electronics, nuclear energy and superconductors.

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  • Niobium Metal Product Material Suppliers SAM

    Our highquality niobium wire is used in chemistry, electronics, aviation aerospace, high pressure sodium lamp, reaction container, heat exchanger sleeve materials. Inquiry. NB0031 Niobium Foil.

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  • Electronic stiffness of a superconducting niobium nitride ...

    Electronic stiffness of a superconducting niobium nitride single crystal under pressure XiaoJia Chen, Viktor V. Struzhkin, Zhigang Wu, Ronald E. Cohen, Simon Kung,* Hokwang Mao, and Russell J. Hemley ... while dropping slightly at high pressure. The theory of Gaspari and Gyorffy is found to reproduce the observed ... pressure effects on ...

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  • HighPressure Torsion for Pure Chromium and Niobium

    HighPressure Torsion for Pure Chromium and Niobium Seungwon Lee 1,2and Zenji Horita ... highpressure torsion (HPT) under applied pressures of 2 and 6GPa for 2, 3, 4 and 5 revolutions at room temperature. ... HighPressure Torsion for Pure Chromium and Niobium ...

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  • Prediction of Novel HighPressure Structures of Magnesium ...

    Prediction of Novel HighPressure Structures of Magnesium Niobium Dihydride. Authors. Chuanzhao Zhang, Sichuan University Guoling Sun, Nanyang Normal University Jingjing Wang, Sichuan University Cheng Lu, University of Nevada, Las Vegas Yuanyuan Jin, Yangtze University

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  • Unusual softening behavior of yield strength in niobium at ...

    Unusual softening behavior of yield strength in niobium at high pressures. ... The highpressure polymorphs and structural transformation of Sn were experimentally investigated using angle ...

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  • NIOBIUM | CMOC International

    Around 90% of total global niobium consumption is in the production of high strength steels which are used in the manufacture of automobiles, ships and high pressure pipelines, as well as in the petroleum, aerospace and construction industries.

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  • Niobium | Plansee

    Its high level of resistance and excellent formability make niobium the perfect material for the crucibles used to manufacture synthetic polycrystalline diamonds (PCD). Our niobium crucibles are used for the highpressure, hightemperature synthesis.

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