lt (Total 18230 Patents Found)

Lt (18230 Patents Found)
The invention relates to a carbon nano tube or SiO*hybrid nanophase material with fluid behavior under room temperature and a preparation method thereof, which is characterized by comprising the following steps: mixing SiO2 colloid with absolute ethyl alcohol solution of silane coupling agent after a carbon nano tube i...
本发明公开了一种高品质因数温度稳定型超低介电常数微波介电陶瓷LiFeGe2O6及其制备方法。(1)将纯度为99.9%(重量百分比)以上的Li2CO3、Fe2O3和GeO2的原始粉末按LiFeGe2O6的组成称量配料;(2)将步骤(1)原料湿式球磨混合12小时,球磨介质为蒸馏水,烘...
The invention provides a porous WO3 electrochromic film preparation method. The porous WO3 electrochromic film preparation method includes: evenly blending a peroxide tungstate solution and a solution containing a pore-forming agent template prior to spin-coating on a substrate; drying the substrate prior to subjecting...
本发明公开了一种回收酸性水中H2S和NH3并净化酸性水的方法。该方法主要利用H2S和NH3不同的挥发度及二者在水中溶解度不同的原理,在酸性水净化的同时回收其中的H2S和NH3。该方法可使大部分H2S主要从二氧化碳汽提塔顶汽提出,大部分NH3主要...
The invention belongs to the technical field of membranes, and particularly relates to a CNT@Fe3O4@C modified polymer hybrid proton exchange membrane and preparation method thereof. The method comprises the step that one-dimensional (1D) type CNT@Fe3O4@C is uniformly dispersed into a polymer matrix in an oriented mode ...
The invention discloses a semiconductor material of a Cu2O porous micro/nano cubic structure. The semiconductor material comprises a silicon wafer substrate and a Cu2O crystal with the micro/nano cubic structure deposited on the surface of the silicon wafer substrate, wherein the Cu2O crystal with the micro/nano cubic ...
The invention discloses a signal receiving circuit of a Fe83Ga17 magnetostrictive displacement sensor. The Signal receiving circuit comprises an echo signal receiving and amplifying circuit and a 4 order band-pass filter circuit which is formed by a cascade method; the echo signal receiving and amplifying circuit which...
The invention discloses a method for preparing a K0.5Na0.5NbO3 single crystal, relating to a method for preparing a single crystal. The method solves the technical problems of small size and large internal stress of a potassium sodium niobate single crystal prepared by the existing method. The method comprises the foll...
The invention discloses a magnetic material salicylaldehyde derivative Schiff base copper complex [Cu4(hmdo)4].H2O and a synthesis method thereof. The copper complex is [Cu4(hmdo)4].H2O, and has the molecular formula of C48H56Cu4N4O17 and molecular weight of 1215.12 g/mol, and H2hmdo is methoxyl salicylidene-2-amino-2-...
一种新型的耐CO2、SO2复合透氧陶瓷膜,由氧离子导电氧化物和电子-氧离子混合导电氧化物组成,其中氧离子导体为具有莹石结构的氧化物,混合导体为具有钙钛矿结构的氧化物,氧离子导电氧化物与混合导电氧化物的质量比为:9:1~1:4;化学式...
The invention discloses a method for densification sintering of a TiO2 coating at the surface of a carbon fiber. The method comprises the following steps: preparing precursor solution from titanate, alcohol liquid, organic acid, and boron compounds by hydrolysis; and dipping, drying and burning a carbon fiber, so as to...
本发明公开的岩盐型LiTiO2球状纳米颗粒,其尺寸介于30~80nm。采用水热法制备,以钛酸四丁酯为先驱物制备的钛的羟基氧化物沉淀为钛源,硝酸锂为锂源,氢氧化钾为矿化剂,同时引入硝酸铅作为表面修饰剂来调节LiTiO2的形貌,最终制得纯度较...
本发明公开了一种聚丙烯酸改性的球状单分散NaGdF4:Yb3+,Er3+上转换荧光粉的制备方法。采用水热法,用聚丙烯酸作表面改性剂,通过调节NaF、NH4HF2和稀土离子总量之间的配比,实现了球状NaGdF4:Yb3+,Er3+上转换荧光粉的合成,且制得的荧光粉体具有...
The invention provides a technology for recovering and processing organic exhaust gas by activated carbon adsorption and N2 desorption. The technology comprises the following steps: organic exhaust gas is pretreated by a coil-cooling filter; the organic exhaust gas which has been pretreated is then sent into a first ac...
The present invention stems from the finding that two genes designated R2R1 and R2R2, play important roles in tissue development and cancer biology. In particular, the inventors have discovered that these two genes are expressed in pulmonary cells and are required for late branching morphogenesis of pulmonary epitheliu...
The invention discloses a preparation method of situ Al2O3-particle reinforced Al-Si-Cu composite material semi-solid slurry, which comprises the steps of: firstly, putting an Al-Si-Cu alloy ingot into a melting furnace, heating to 780-800 DEG C, and standing still for 20-30min at the temperature of 780-800 DEG C; dryi...
本发明公开了一种气相化学运输法制备纳米Fe3‑xSnxO4材料的方法,该方法是将SnO2置入含CO和CO2混合气氛中进行焙烧,焙烧烟气直接引入装有纳米羟基铁粉末的炉中,进行二段焙烧,即得纳米Fe3‑xSnxO4,本发明相比传统高温固相反应法焙烧温度...
本发明公开了一种ZrO2-TiO2/SO42-固体酸催化剂的制备方法,其特征是该制备方法包括以下步骤:首先,恒温水浴中,水中搅拌溶解ZrOCl2·8H2O,再加入聚乙二醇,静置,得澄清透明的溶液A;氨水调节溶液A的pH值,得白色沉淀,过滤、洗涤,得湿滤...
本发明公开了一种SiO2-Fe2O3双尺寸胶体晶体的制备方法,可获得周期性有序的SiO2-Fe2O3双尺寸胶体晶体结构,采用KCl对二氧化硅胶体球进行了表面改性剂,并将改性的二氧化硅球形颗粒自组装于ITO玻璃基底上,通过沉浸法和双基片注射的方法将氧...
高速铁路用Ti2AlC增强青铜基制动闸片材料及其制备方法,它涉及一种材料及其制备方法。本发明为了解决现有的高速铁路用制动闸片材料摩擦剂硬度高且塑性很差,会造成闸片对配副材料的严重磨损的技术问题。高速铁路用Ti2AlC增强青铜基制...
The invention discloses a method for quickly preparing a nano-crystal of a V2O5 dried gel at low temperature, which adopts a sol-gel method and comprises the following steps: 1) dissolving a vanadium compound into an organic solvent, stirring the mixture evenly to obtain solution A; 2) using acid liquor to adjust the p...
本发明涉及一种改性纳米SiO2溶胶、其制备方法及其在汽车玻璃上的使用方法,其基本步骤依次是:1.在一定温度和主剂浓度下以溶胶凝胶法分别制备含有30~80nm和100~200nmSiO2颗粒的溶胶溶液;2.向步骤1中制备的含有100~200nm SiO2颗粒的溶胶溶液...
本发明公开了一种射频磁控溅射制备BaTiO3-Ni0.5Zn0.5Fe2O4铁电铁磁复合陶瓷薄膜及制备方法。先制备含有Ni-Zn-Fe-Ba-Ti源的溶胶前驱体,烘干、热处理后成型并烧结成靶材;然后利用磁控溅射法在ITO/玻璃基板上沉积膜层;在空气气氛下热处理制备得...
本发明公开了一种基于Ni膜退火和Cl2反应的结构化石墨烯制备方法,主要解决现有技术制备的石墨烯连续性不好、层数不均匀的问题。其实现步骤是:(1)在Si衬底基片上生长一层碳化层作为过渡;(2)在温度为1200℃-1300℃下生长3C-SiC薄膜;(3)在3C-S...
本发明公开了一种高温超导涂层导体Gd1-xCaxBiO3缓冲层,其特征在于,为对高温超导涂层导体GdBiO3缓冲层进行Gd的Ca的替代进而外延成相热处理生成氧化物Gd1-xCaxBiO3固溶体,其中0.1≤x≤0.4。本发明所述高温超导涂层导体的Gd1-xCaxBiO3缓冲层,它是对...
一种用等离子喷涂技术制备铝电解槽TiB2阴极涂层的方法,该方法步骤包括:烘干的硼化钛粉末、氧化铝粉末和石墨粉按照一定比例加入高温焙烧炉中使其形成共晶体,共晶体经过破碎、球磨以及进一步的超细粉碎后加入等离子喷涂设备的料斗...
本实用新型公开了一种SS4G电力机车自降动作制动控制电路,其特征是设置一中间继电器和一时间继电器;SS4G电力机车自降装置信号端线804D经由时间继电器的常开触点和中间继电器的常开触点构成的并联电路后,一路经中间继电器的常开触点...