Abstract:
본 발명은 2단 기계적 합금화 공정을 통하여 산화물 입자를 분산시킴으로서 연신율을 향상시키는 산화물 분산강화 텅스텐 중합금 제조방법에 관한 것으로서, 먼저 텅스텐 분말과 산화물 분말을 1단계로 기계적 합금화시키고, 상기 1단계에서 얻어지는 합금화 분말을 2단계로 전이금속분말과 함께 기계적 합금화 혹은 혼합시키는 2단 기계적 합금화 공정을 거치는 것을 특징으로 한다. 본 발명에 의하면, 텅스텐 중합금이 종래에 비하여 비슷한 강도를 유지하면서 연신율이 향상되기 때문에 산화물 첨가량을 증가시킬 수 있고, 그에 따른 고온강도의 향상과 더불어 전단변형시 파괴가 쉽게 일어나는 자기마모(self sharpening) 현상이 잘 나타나게 되므로, 우수한 관통특성을 나타내는 운동에너지탄 관통자용 소재로 사용하기에 적합하다. 산화물 분산강화, 텅스텐 중합금, 2단 기계적 합금화 공정, 연성
Abstract:
A display device and a manufacturing method thereof are provided to display images by adjusting light transmittance according as a micro shutter electrode is opened by electrostatic force, and remove the necessity for forming a special spacer by performing a function of the spacer by using a fixed electrode. A display device comprises an upper substrate(210), a black matrix(220), a color filter(230), a lower substrate(110), a micro shutter electrode(190) and a fixed electrode(270). The black matrix is formed in the upper substrate. The color filter is formed between the black matrixes. The micro shutter electrode is formed on the lower substrate, and has a re-closable structure. The fixed electrode is vertically formed.
Abstract:
PURPOSE: Provided is a preparation method of nanocomposite powder with reproducibility and reliability by homogeneously dispersing carbon nanotubes in the matrix. CONSTITUTION: The nanocomposite powder is prepared by the following steps of: (i) mixing mutiwalled carbon nanotubes having a tube shape of 10-40nm of diameter and 5micrometer of length with a dispersant, funtionalizing carbon nanotubes, such as nitric acid, toluene, N,N-dimethylformamide or thionyl chloride; (ii) applying ultrasonics to the solution at 40-50W and 40-60KHz; (iii) adding matrix materials, oxides enabling to be water soluble metal salts, such as aluminum oxide and copper oxide to the dispersed solution; (iv) applying ultrasonics to matrix-added solution under the same condition as the above; (v) calcining the dispersed solution of step(iv) at vacuum or reductive atmosphere.
Abstract:
본 발명은표시 장치에 관한 것으로, 단위 표시 영역을 포함하는 기판, 상기 기판 위에 형성되어 있으며 전기적으로 고립되어 있는 고정 부재, 상기 고정 부재 위에 형성되어 있는 절연막, 상기 절연막 위에 형성되어 있으며 전기적으로 연결되어 있는 고정 전극, 그리고 한 쪽 끝이 상기 절연막 위에 고정되어 있으며 상기 고정 전극과 간격을 두고 위치하는 복수의 가동 부재를 포함하며, 상기 복수의 가동 부재 및 상기 고정 전극은 상기 단위 표시 영역 내에 위치한다. 표시 장치, 가동 부재, 고정 전극, 정전기 유도, 공간 분할 밝기 조절
Abstract:
The present invention may accurately convert a mechanical CAD file into the CAD file of a CAD system for a ship by mapping a modeling unit corresponding to the CAD file in the CAD system for the ship and the CAD file worked in a mechanical CAD system in the conversion of the CAD file for being applied to the CAD system for the ship used in the design of the ship for the CAD file cooperated with the mechanical CAD system and by converting a parameter value for determining a character shape within each mapped modeling unit into a parameter value matched with the CAD file of the CAD system for the ship. [Reference numerals] (202) File reception unit; (204) Mapping unit; (206) Parameter conversion unit; (208) File transmission unit
Abstract:
질화물 강화 텅스텐 나노복합재료가 제공된다. 본 발명에 따른 질화물 강화 텅스텐 나노복합재료는 텅스텐 금속 기지 내부에 질화물 세라믹 나노입자가 균일하게 분산되어 있는 것을 특징으로 하며 밀도, 압축강도 및 경도가 우수하기 때문에 국방 무기, 항공기 또는 로켓의 추진기관에 사용되는 내열부품 등 다양한 분야에 활용할 수 있다.
Abstract:
PURPOSE: Tungsten nanocomposites reinforced with nitride ceramic nanoparticles and a method for fabricating the same are provided to uniformly nitride ceramic nanoparticles in a tungsten matrix by arranging the pre-set ratio of the nitride ceramic nanoparticles in the tungsten nanocomposites. CONSTITUTION: Nitride ceramic nanoparticles are uniformly dispersed in a tungsten matrix. A mechanical alloying method using high energy milling process is implemented to the mixture to obtain tungsten nanocomposites reinforced with nitride ceramic nanoparticles. 0.1 to 50 volume% of the nitride ceramic nanoparticles are arranged in the tungsten nanocomposites reinforced with nitride ceramic nanoparticles. The nitride ceramic nanoparticles include one or more selected from a group including ZrN, HfN, BN, AlN, Si_3N_4, TiN, TaN, Ta_2N, VN, CrN, Cr_2N, Mo_2N, NbN, WN, and W_2N.
Abstract:
PURPOSE: A display panel and a display device including the same are provided to improve image quality by enhancing an aperture of a display panel. CONSTITUTION: A plurality of pixels(PX11) include a micro shutter(MS) and are divided into a plurality of groups. A plurality of first electrodes face each micro shutter of pixels which belong to corresponding groups. A plurality of second electrodes are overlapped with one end of the first electrode. An insulation layer electrically insulates the first electrodes from the second electrodes and the micro shutters.
Abstract:
A display device is provided to control the amount of light passing through a display area more precisely through time and space division. A substrate comprises a unit display area. A fixing member(121) is formed on the substrate and is electrically isolated. An insulation film(180) is formed on the fixing member. A fixing electrode(195) is formed on the insulation film and is electrically connected. One ends of a plurality of movable members(191) are fixed on the insulation film and are placed in predetermined regular intervals from the fixing electrode.