CAS: 12007-29-3; Niobium Boride

该化合物是一种以其特殊硬度,高熔点(~3,000°C)和极好的热电导能而闻名的耐火陶瓷化合物,其化学稳定性较高,即使在高温下也抵制氧化和腐蚀.NbB2经常在极端环境中使用,如高温结构部件,耐磨涂层和电极.它由机械强度和热性能结合,适合航空航天,核和冶金应用.此外,NbB2展示了良好的中子吸收,扩大了其在核防护中的使用.该材料与复合基体的兼容性进一步增强了其在先进工程系统中的多用途性.

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    专利信息


    专利号:US-6025513-A
    优先权日:1997-06-27
    标题:Preparation of alkylhalosilanes
    发明人:NAKANISHI TETSUO; INUKAI TETSUYA; TSUKIOKA KAZUMASA; NAKAYAMA HIROSHI; SATOH YUKINORI
    权利人:SHINETSU CHEMICAL CO
    摘要:An alkylhalosilane is prepared by charging a reactor with a contact mass comprising a metallic silicon powder and a copper catalyst, and feeding an alkyl halide into the reactor whereby the silane is formed by direct synthesis. The contact mass contains 1-10,000 ppm of elemental boron. The addition of boron to the contact mass is effective for increasing the throughput of dialkyldihalosilane at desired STY in an inexpensive manner while suppressing formation of unnecessary hydrosilanes and disilanes.

    专利号:CN-114045546-A
    优先权日:2021-11-22
    标 题:Method for preparing transition metal boride coating by in-situ synthesis of molten salt and electrophoretic deposition

    专利号:US-5217583-A
    优先权日:1991-01-30
    标 题:Composite electrode for electrochemical processing and method for using the same in an electrolytic process for producing metallic aluminum
    发明人:SEKHAR JAINAGESH A; BHADURI SARIT B
    权利人:MOLTECH INVENT SA
    摘要:A dimensionally stable combustion synthesis product of a composition containing at least 20% by weight of a particulate combustible material; at least 15% by weight of a particulate filler material capable of providing desired mechanical and electrical properties; and up to 35% by weight of a particulate inorganic binder having a melting point lower than the combustion synthesis temperature. Electrodes suitable for electrochemical processing are a preferred product form, particularly electrodes for use in the electrowinning of aluminum from its oxide.

    专利号:US-11637276-B2
    优先权日:2018-05-17
    标 题:Molten fluid electrode apparatus with solid lithium iodide electrolyte having improved lithium ion transport characteristics
    发明人:VISSERS DANIEL R; BRAUN PAUL V
    权利人:VISSERS BATTERY CORP
    摘要:Performance of a thermal lithium battery is improved by improving the ion-transport characteristics of a solid lithium iodide electrolyte. The lithium iodide lattice of the solid electrolyte includes defects that improve the ion-transport characteristics of the solid lithium iodide electrolyte. In one example, the defects are due to the introduction of nanoparticles that result in grain boundary defects. The defects resulting at the grain boundaries with the nanoparticles improve the ion transport characteristics of the electrolyte. In another example, defects originating from the synthesis process are pinned by the presence of nanoparticles and/or the reinforcing structure. In another example, the defects are aliovalent substitution defects. A cation that is aliovalent to the lithium cation (Li+), such as a barium cation (Ba2+), creates an aliovalent substitution defect in the lithium iodide lattice. In order to maintain charge neutrality in the lattice, two lithium cations are replaced by a single barium cation creating the defect in the lattice.

    专利号:HU-214545-B
    优先权日:1991-01-30
    标题 :Delivery to produce an electrochemical electrode by synthesis by self-sustaining combustion, as well as a composition for such a process, as well as the production of metal with such electrode

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    合成参考文献


    参考文献:10.1007/bf02669660
    摘要:Yang WY, Yi HC, Petric A. Microstructure of the Ti3Al(Nb)/TiB composite produced by combustion synthesis. Metallurgical and Materials Transactions A. 1995 Nov;26(11):3037–43. doi: 10.1007/bf02669660.
    参考文献:10.1007/bf00791400
    摘要:Borisova AL, Kuz'ma YB, Petrova EM, Sleptsov VM, Chaban NF. Reaction of niobium with zirconium diboride. Powder Metallurgy and Metal Ceramics. 1979 Aug;18(8):555–9. doi: 10.1007/bf00791400.
    参考文献:10.1007/bf00796413
    摘要:Marek ÉV, Kuz'ma YB, Kosolapova TY. Reactions of borides of the transition metals with their oxides. Powder Metallurgy and Metal Ceramics. 1971 Feb;10(2):138–41. doi: 10.1007/bf00796413.
    参考文献:10.1007/bf00798342
    摘要:Burykina AL, Dzyadykevich YV. Reactions between boride coatings and refractory metals. Powder Metallurgy and Metal Ceramics. 1974 Aug;13(8):653–6. doi: 10.1007/bf00798342.
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