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    • 102. 发明授权
    • Process for the production of silicon carbide sintered bodies
    • 生产碳化硅烧结体的工艺
    • US4526734A
    • 1985-07-02
    • US352477
    • 1982-02-26
    • Ryo Enomoto
    • Ryo Enomoto
    • C04B35/565C04B35/34
    • C04B35/565
    • A process for producing a silicon carbide sintered body is disclosed, which comprises the steps of charging a sintering raw material consisting mainly of silicon carbide fine powder and sintering aid into a dispersion medium together with, if necessary, at least one substance of a molding assistant and a deflocculating agent to form such a uniform suspension that a volume ratio of solid content composed of said silicon carbide fine powder and sintering aid in said suspension is not more than 15%; spray freezing said suspension in an atmosphere held at a temperature lower than a melting point of said dispersion medium to obtain a granular frozen body; freeze drying said granular frozen body for sublimation of said dispersion medium to obtain a powdery dried mixture; shaping said powdery dried mixture into a green body of an optional form; and sintering said green body without pressing.
    • 公开了一种制造碳化硅烧结体的方法,其包括如下步骤:将主要由碳化硅细粉末和烧结助剂组成的烧结原料与必要时的至少一种成型助剂物质一起加入到分散介质中 和形成这样的均匀悬浮液的抗絮凝剂,所述悬浮液中由所述碳化硅微粉末和烧结助剂构成的固体含量的体积比不大于15%; 在保持在低于所述分散介质的熔点的温度的气氛中将所述悬浮液喷雾冷冻以获得颗粒状冷冻体; 冷冻干燥所述颗粒状冷冻体以升华所述分散介质,得到粉末状干燥混合物; 将所述粉末状干燥混合物成形为可选形式的生坯; 并且不压制烧结所述生坯。
    • 109. 发明公开
    • 세라믹 전자부품용 자성체 조성물, 그 제조방법 및 이를 이용한 세라믹 전자부품
    • 用于陶瓷电子元件的磁性材料组合物及其制造方法及使用该电子元件的电子元件
    • KR1020120057098A
    • 2012-06-05
    • KR1020100118685
    • 2010-11-26
    • 삼성전기주식회사
    • 안성용김정욱김성룡손수환한진우김익섭
    • C04B35/34H01F1/34C04B35/46C04B35/30
    • H01F1/344C01G53/006C01P2006/42C04B35/265C04B2235/3232C04B2235/3275C04B2235/3279C04B2235/3281C04B2235/3284C04B2235/3291C04B2235/443C04B2235/5409C04B2235/656C04B2235/77C04B2235/9615H01F17/0033
    • PURPOSE: A magnetic material composition for ceramic electronic components, a manufacturing method thereof, and a ceramic electronic component using thereof are provided to enhance sinterability and magnetic property by optimizing composition range of Ni-Zn-Cu ferrite powder. CONSTITUTION: A magnetic material composition for ceramic electronic components comprises nickel-zinc-copper ferrite powder. The nickel-zinc-copper ferrite powder comprises iron oxide(Fe203) and sum total 47.0-49.5 molar portion of titanium oxide(TiO2) and cobalt oxide(CoO). 16.0-24.0 molar portion of nickel oxide(NiO), 18.0-25.0 molar portion of zinc oxide(ZnO), and 7.0-13.0 molar portion of cupric oxide(CuO) are included. A manufacturing method of the magnetic material composition for ceramic electronic component comprises the following steps: preparing raw materials of titanium oxide(TiO2), iron oxide(Fe203), nickel oxide(NiO), zinc oxide(ZnO), cupric oxide(CuO), and cobalt oxide(CoO); mixing the raw materials and liquid milling thereof; and drying the milled mixture and incinerating thereof in order to manufacture nickel-zinc-copper ferrite powder.
    • 目的:提供一种用于陶瓷电子元件的磁性材料组合物,其制造方法和使用其的陶瓷电子元件,通过优化Ni-Zn-Cu铁氧体粉末的组成范围来提高烧结性和磁性能。 构成:用于陶瓷电子部件的磁性材料组合物包括镍 - 锌 - 铜铁氧体粉末。 镍 - 锌 - 铜铁氧体粉末包含氧化铁(Fe 2 O 3)和总共47.0-49.5摩尔份的氧化钛(TiO 2)和氧化钴(CoO)。 氧化镍(NiO)16.0-24.0摩尔份,氧化锌(ZnO)18.0-25.0摩尔份,氧化铜(CuO)7.0-13.0摩尔份)。 陶瓷电子部件用磁性材料组合物的制造方法包括以下步骤:制备氧化钛(TiO 2),氧化铁(Fe 2 O 3),氧化镍(NiO),氧化锌(ZnO),氧化铜(CuO) ,和氧化钴(CoO); 混合原料和液体研磨; 并干燥碾磨混合物并焚烧,以制备镍 - 锌 - 铜铁氧体粉末。