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    • 77. 发明公开
    • 고순도 탄화규소 분말의 제조방법
    • 用于制造具有高纯度的SIC粉末的方法
    • KR1020130104447A
    • 2013-09-25
    • KR1020120025947
    • 2012-03-14
    • 한국과학기술연구원엘지이노텍 주식회사
    • 박상환한경섭윤성호양진오조경선염미래조영철
    • C01B31/36C01B33/12
    • C01B31/36C01B32/956C01B33/12
    • PURPOSE: A production method of silicon carbide powder is provided to control the size and the crystalline of the silicon carbide powder by adjusting the heat processing temperature and time, and changing the composition of a gaseous silicon source and a solid carbon source. CONSTITUTION: A production method of silicon carbide powder comprises the following steps: mixing and drying metallic silicon, silica powder, and a thermoplastic resin to obtain a starting raw material for producing a gaseous silicon source; locating the starting raw material for producing the gaseous silicon source on the bottom of a graphite crucible, locating a graphite separator on the upper side of the starting raw material for producing the gaseous silicon source, and locating a solid carbon source on the upper side of the graphite separator before closing a lid of the graphite crucible to form a reaction system to produce the silicon carbide powder; and heat processing the reaction system under the argon atmosphere.
    • 目的:提供碳化硅粉末的制造方法,通过调节热处理温度和时间,改变气态硅源和固体碳源的组成来控制碳化硅粉末的尺寸和结晶。 构成:碳化硅粉末的制造方法包括以下步骤:将金属硅,二氧化硅粉末和热塑性树脂混合干燥,得到气态硅源的制造原料, 将用于生产气态硅源的起始原料定位在石墨坩埚的底部,将石墨隔板定位在用于生产气态硅源的起始原料的上侧,并将固体碳源定位在 在石墨坩埚盖上关闭石墨隔板,形成碳化硅粉末的反应体系; 并在氩气氛下热处理反应体系。
    • 78. 发明公开
    • 실리콘 카바이드 파우더의 제조방법
    • 制造碳化硅粉的方法
    • KR1020130000854A
    • 2013-01-03
    • KR1020110061629
    • 2011-06-24
    • 엘지이노텍 주식회사
    • 김병숙한정은
    • C01B31/36C04B35/565
    • C01B31/36B82Y30/00C01B32/956C04B35/573C04B2235/3418C04B2235/3834C04B2235/424C04B2235/428C04B2235/48C04B2235/52C04B2235/528C04B2235/5288C04B2235/5436C04B2235/6562C04B2235/72Y10T428/2982C04B35/565
    • PURPOSE: A fabricating method of silicon carbide powder is provided to synthesize silicon carbide powder with desired particle sizes, specifically 10 um or more, and high purity at low temperatures. CONSTITUTION: A fabricating method of silicon carbide powder includes a process for mixing silicon carbide source with silicon containing silicon source, solid carbon source, or organic compound containing carbon source to form a mixture(ST10); and a process for reacting the mixture(ST20). The average particle size of the silicon carbide source is 1-10 um. The silicon carbide source has β-type crystallinity. The silicon source is selected from a group including silica sol, silicon dioxide, fine silica, and quartz powder. The solid carbon source is selected form a group including carbon black, carbon nanotubes, and fullerene. The organic carbon compound is selected from a group including a phenol resin, a fran resin, a xylene resin, polyimide, polyacrylonitrile, polyvinyl alcohol, cellulose, pitch, tar, and sugars. [Reference numerals] (ST10) Mixture forming step; (ST20) Mixture reacting step
    • 目的:提供碳化硅粉末的制造方法,以合成具有所需粒度的碳化硅粉末,特别是10微米或更高,并且在低温下具有高纯度。 构成:碳化硅粉末的制造方法包括将碳化硅源与含硅硅源,固体碳源或含碳源的有机化合物混合以形成混合物的方法(ST10); 和使混合物反应的方法(ST20)。 碳化硅源的平均粒径为1-10μm。 碳化硅源具有β型结晶度。 硅源选自硅溶胶,二氧化硅,细二氧化硅和石英粉末。 选自碳黑,碳纳米管和富勒烯的固体碳源。 有机碳化合物选自酚醛树脂,法兰树脂,二甲苯树脂,聚酰亚胺,聚丙烯腈,聚乙烯醇,纤维素,沥青,焦油和糖类。 (标号)(ST10)混合物形成工序; (ST20)混合反应步骤