Abstract:
A low fired dielectric ceramic composition is provided to ensure low dielectric constant, low dielectric loss, high quality value and high strength and to realize the composite module of electronic component with strong impact resistance. A low fired dielectric ceramic composition a dielectric ceramic composition containing glass frit 35~60 weight% and filler 40~65 weight%, and a nucleating agent 0.3~3 weight% based on the glass frit or a nucleating agent 0.5~15 weight% based on the dielectric ceramic composition. The glass frit comprises SiO2, B2O3, Al2O3, ZnO, oxides of alkali earth metal and oxides of alkali metal and has the crystalline selected from the group consisting of wollastonite (CaSiO3), fan kinite (Ca3Si2O7), dicalcium silicate (Ca2SiO4), Ca3SiO5, diopside (CaMgSi2O6), anorthite (CaAl2Si2O8), cordierite (5SiO2-2Al2O3-2MgO), MgSiO3, MgB2O4, SrSiO3, SrAl2Si2O8, SrB2O4, and their mixture.
Abstract translation:提供低烧介电陶瓷组合物,以确保低介电常数,低介电损耗,高质量值和高强度,并实现具有很强抗冲击性的电子元件的复合模块。 低烧介电陶瓷组合物,含有玻璃料35〜60重量%,填料40〜65重量%的电介质陶瓷组合物,以及基于玻璃料的成核剂0.3〜3重量%或基于0.5〜15重量%的成核剂 介电陶瓷组合物。 玻璃料包括SiO 2,B 2 O 3,Al 2 O 3,ZnO,碱土金属的氧化物和碱金属的氧化物,并且具有选自硅灰石(CaSiO 3),风扇动力学(Ca 3 Si 2 O 7),硅酸二钙(Ca 2 SiO 4),Ca 3 SiO 5 ,透辉石(CaMgSi2O6),钙长石(CaAl2Si2O8),堇青石(5SiO2-2Al2O3-2MgO),MgSiO3,MgB2O4,SrSiO3,SrAl2Si2O8,SrB2O4及其混合物。
Abstract:
A calcium-cobalt oxide anode material is provided to ensure capacity higher than that of a conventional carbon material, stable cycle property, and excellent lithium ion conductivity. A calcium-cobalt oxide anode material has a composition of the chemical formula 1: [(Ca_(3-x).A_x)(Co_(4-y).B_y)O_9. In the chemical formula 1, A is an inert element selected from Bi, Gd and Na; and B is the transition elements selected from Fe, Ni, Mn and Cu, and 0
Abstract:
PURPOSE: An electrode having a nanocomposite active material is provided to improve a charge-discharge rate property of a lithium secondary battery and to solve low output properties and the degradation of cycleability. CONSTITUTION: An electrode having a nanocomposite active material comprises a substrate and an active material layer formed on the substrate. The active material layer includes a nano-structure conductor which is formed on the substrate and consists of metal or metal oxide, and an active material which is formed on the nano-structure conductor and includes nano particles of metal oxides.
Abstract:
PURPOSE: A method for manufacturing an organic-inorganic composite comprising bacteria and transition metal oxides is provided to reduce costs and time by simplifying a synthetic process, to enable mass production, and to obtain the organic-inorganic composite having various one-dimensional shapes. CONSTITUTION: A method for manufacturing an organic-inorganic composite comprising bacteria and transition metal oxides comprises the following steps: manufacturing a bacteria dispersion solution by controlling the concentration of the bacteria using deionized water after culturing the bacteria having ion charges; uniformly dispersing bacillus bacteria and a transition metal precursor by adding a transition metal precursor solution to the solution of the previous step and stirring the mixture at 20-30 °C for 0.5-2 hours; making the transition metal oxides attached uniformly to the surface of the bacteria by adding a solution, in which sodium borohydride(NaBH4) is dissolved in the deionized water, to the solution of the previous step and refluxing the mixture; obtaining a precipitate through centrifugal filtration of the refluxed solution; and manufacturing the organic-inorganic composite by drying the precipitate in vacuum state.
Abstract:
PURPOSE: A low-permittivity dielectric composition for low-temperature sintering, and a low permittivity ceramic dielectric body using thereof are provided to maintain the low permittivity by partially crystallizing glass using a nucleator. CONSTITUTION: A low-permittivity dielectric composition for low-temperature sintering contains the following; 44~65wt% of borosilicate glass frit including SiO_2, B_2O_3, Al_2O_3, alkaline earth oxide, and alkali metal oxide; 34~55wt% of filling material selected from the group consisting of Al_2O_3, SiO_2, MgAl_2O_4, MgSiO_3, and others; and 0.1~5wt% of nucleator selected from ZrO_2, TiO_2, La_2O_3, and WO_3. A low permittivity ceramic dielectric body including the low-permittivity dielectric composition is produced by low temperature sintering the low-permittivity dielectric composition.
Abstract:
PURPOSE: A transition metal oxide / multi-walled carbon nanotube nanocomposite and a method for manufacture the same are provided to enable mass production through a simple synthesis procedure by manufacturing 0 dimension -1 dimension nanocomposite using an urea composition method and a surfactant. CONSTITUTION: A method for manufacturing a transition metal oxide / multi-walled carbon nanotube nanocomposite comprises the following steps: a first step of dissolving a surfactant by putting the surfactant into deionized water; a second step of uniformly dispersing carbon nanotube and the surfactant by putting multi-walled carbon nanotube into a solution of the first step; a third step of adding chloridation metal and urea in the solution of the third step; a fourth step of heating the solution of the third step to 95 ~ 105 °C while stirring the solution; a fifth step of obtaining a precipitate by refluxing the solution of the fourth step; and a sixth step of manufacturing the nanocomposite by heat-treating the precipitate under air atmosphere or vacuum.
Abstract:
PURPOSE: A semiconductor nano optical sensor and a manufacturing method thereof with fast reaction are provided to secure high sensitivity and fast response by arranging semiconductor nano line. CONSTITUTION: A semiconductor nano optical sensor and a manufacturing method thereof with fast reaction includes a substrate(10), a metal catalytic layer(40), and a visible light band semiconductor nano line(50). An upper side of the substrate is composed of a substrate. Two electrodes are separated at specific interval between two substrates. A metal catalytic layer is formed on each electrode. A visible light band semiconductor nano line is formed from the metal catalytic layer on each electrode.
Abstract:
A method for manufacturing a needle type single crystalline AlN nano-rod is provided to enhance efficiency and to extend a lifetime of the needle type single crystalline AlN nano-rod. An aluminum metal, a hydrochloric gas, and an ammonia gas react under nitrogen gas atmosphere during 10-30 minutes at temperature of 680-720 °C. Aluminum metal powders are positioned in the inside of the quartz tube. The hydrochloric gas/nitrogen is introduced into the inside of the quartz tube. The ammonia gas/nitrogen is introduced into the inside of the quartz tube. In the introduced gas, a volume ratio of HCl/NH3 is 0.02 to 0.05 and a volume ratio of (HCl/N2)/(NH3/N2) is 0.6 to 0.8. The total flow rate of the introduced gas corresponds to a range of 600 to 1000 sccm. A single crystalline nano-rod(110) is formed by introducing the gas in the flow rate.
Abstract translation:提供一种制造针型单晶AlN纳米棒的方法,以提高针型单晶AlN纳米棒的效率并延长其寿命。 在氮气气氛下,在680-720℃的温度下,在10-30分钟内,将铝金属,盐酸气体和氨气反应。 铝金属粉末位于石英管的内部。 将盐酸气体/氮气引入石英管的内部。 将氨气/氮气引入石英管的内部。 在导入的气体中,HCl / NH 3的体积比为0.02〜0.05,(HCl / N 2)/(NH 3 / N 2)的体积比为0.6〜0.8。 引入气体的总流量对应于600〜1000sccm的范围。 通过以流量引入气体形成单晶纳米棒(110)。