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    MNZNCO-BASED FERRITE
    1.
    发明公开
    MNZNCO-BASED FERRITE 审中-实审

    公开(公告)号：EP4342869A1

    公开(公告)日：2024-03-27

    申请号：EP23817281.1

    申请日：2023-06-12

    Applicant: JFE Chemical Corporation

    Inventor： NOJIMA Azumi ,  SOGA Naoki ,  NAKAMURA Yukiko

    IPC: C04B35/38 ,  C04B35/26 ,  C04B35/32 ,  C04B35/34 ,  C04B35/36 ,  H01F1/03 ,  H01F1/10

    Abstract: To provide MnZnCo-based ferrite with small magnetic losses over a wide frequency range and a wide temperature range. Disclosed is MnZnCo-based ferrite containing basic components and auxiliary components, in which the basic components are Fe 2 O 3 : 51.00 mol% or more and less than 58.00 mol%, ZnO: 6.00 mol% or more and less than 13.00 mol%, and CoO: more than 0.10 mol% and 0.50 mol% or less, with the balance being MnO, and the auxiliary components are 50 mass ppm to 500 mass ppm of Si in terms of SiO 2 , 200 mass ppm to 2000 mass ppm of Ca in terms of CaO, 85 mass ppm to 500 mass ppm of Nb in terms of NbzOs, and 5 mass ppm to 20 mass ppm of K, relative to the basic components.

    Ferrite materials, methods of preparing the same, and products formed therefrom
    9.
    发明公开
    Ferrite materials, methods of preparing the same, and products formed therefrom 审中-公开
    铁氧体材料，其制造和产品的方法由其制

    公开(公告)号：EP1320108A2

    公开(公告)日：2003-06-18

    申请号：EP02258521.0

    申请日：2002-12-10

    Applicant: Spang & Company

    Inventor： Fanton, Mark A. ,  Huth, Joseph F., III

    IPC: H01F1/34 ,  H01F27/255 ,  C04B35/38

    CPC classification number: H01F1/344 ,  C04B35/2658 ,  H01F27/255

    Abstract: Ferrite materials, methods of forming the same, and products formed therefrom are disclosed, comprising, as main components, an iron oxide ranging from 55.5 to 58.0 mole percent calculated as Fe 2 O 3 , an amount of manganese oxide ranging from 38.0 to 41.0 mole percent calculated as MnO, and an amount of zinc oxide ranging from 3.3 to 4.7 mole percent calculated as ZnO. The present invention also includes, as minor components, an amount of calcium oxide ranging from 0.030 to 0.100 weight percent calculated as CaO, an amount of silicon oxide ranging from 0.015 to 0.040 weight percent calculated as SiO 2 , and an amount of niobium oxide ranging from 0.010 to 0.030 weight percent calculated as Nb 2 O 5 .

    "> HIGH-TEMPERATURE STRENGTH AND HEAT-RESISTANT COMPOSITE MATERIAL
    10.
    发明公开
    HIGH-TEMPERATURE STRENGTH AND HEAT-RESISTANT COMPOSITE MATERIAL "REFSIC" 有权
    HITZESTABILES的HOTETEMPERATUR WIDERSTEHENDES KOMPOSITMATERIAL“REFSIC”

    公开(公告)号：EP1123908A1

    公开(公告)日：2001-08-16

    申请号：EP99935200.8

    申请日：1999-07-05

    Applicant: INSTITUT FIZIKI TVERDOGO TELA AKADEMII NAUK SSSR

    Inventor： GNESIN, Boris Abramovich ,  GURZHIYANTS, Pavel Artemovich

    IPC: C04B35/38 ,  C04B35/565 ,  C22C29/02 ,  C22C29/18 ,  H05B3/14

    CPC classification number: C04B35/58092 ,  C04B35/573 ,  C04B35/653 ,  C04B35/806 ,  H05B3/148

    Abstract: The invention relates to materials intended for use in an oxidative medium at high temperatures, including the manufacture of high-temperature electric heaters, parts, sensors and tools operating at temperatures of up to 1900°C and higher. On the basis of tungsten and molybdenum silicides MeSi 2 -Me 5 Si 3 and silicon carbides materials are prepared, noted for a high level of temperature resistance, resistance to thermal shocks, refractoriness and wear resistance. Alloying with silicides of rhenium, tantalum, titanium, zirconium, niobium, and hafnium makes it possible to enhance the mechanical properties of materials. Materials with controllable porosity make it possible, compared with high-density materials, at a smaller density of the materials, to increase the resistivity and to reduce the thermal conductivity thereof.

    Abstract translation: 本发明涉及在高温下用于氧化介质的材料，包括制造在高达1900℃或更高的温度下工作的高温电加热器，部件，传感器和工具。 在钨和硅化钼的基础上，制备MeSi2-Me5Si3和碳化硅材料，注意到耐高温，耐热冲击，耐火性和耐磨性。 与铼，钽，钛，锆，铌和铪的硅化物合金使得可以增强材料的机械性能。 具有可控孔隙率的材料使得与较高密度的材料相比，在较小的材料密度下可以提高电阻率并降低其导热性。

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