Production of dielectric ceramic material powder
    1.
    发明授权
    Production of dielectric ceramic material powder 失效
    电介质陶瓷材料粉末的生产

    公开(公告)号:US5554571A

    公开(公告)日:1996-09-10

    申请号:US538335

    申请日:1995-10-03

    摘要: Powder of dielectric ceramic materials is produced by preparing a main component Ba(Ti.sub.1-x-y Zr.sub.x Hf.sub.y)O.sub.3 allowing barium hydroxide, at least one titanium compound, at least one zirconium compound and at least one hafnium compound to react with one another by condensation by catalytic actions of a base selected from the group consisting of alkali and amines; preparing a complex hydroxide of at least one rare earth element and manganese by allowing at least one rare earth element compound and a manganese compound to react with a base selected from the group consisting of alkali and amines in an aqueous solution; preparing at least one carbonate of calcium and magnesium by allowing at least one compound of calcium compounds and magnesium compounds to react with carbonate ions in an aqueous solution; mixing all the precipitates, and drying and thermally treating the resultant mixture.

    摘要翻译: 电介质陶瓷材料的粉末是通过制备主要成分Ba(Ti1-x-yZrxHfy)O3来制备的,所述主要组分Ba(Ti1-x-yZrxHfy)O3允许氢氧化钡,至少一种钛化合物,至少一种锆化合物和至少一种铪化合物彼此反应, 选自碱和胺的碱的催化作用; 通过在水溶液中使至少一种稀土元素化合物和锰化合物与选自碱和胺的碱反应来制备至少一种稀土元素和锰的复合氢氧化物; 通过使至少一种化合物的钙化合物和镁化合物与水溶液中的碳酸根离子反应来制备至少一种钙和镁的碳酸盐; 混合所有沉淀物,并干燥并热处理所得混合物。

    Humidity sensitive device
    2.
    发明授权
    Humidity sensitive device 失效
    湿度敏感装置

    公开(公告)号:US4328478A

    公开(公告)日:1982-05-04

    申请号:US184802

    申请日:1980-09-08

    IPC分类号: H01C7/00 G01N27/12 G01W1/02

    CPC分类号: G01N27/121 Y10T29/49099

    摘要: A humidity sensitive device comprises a base body of a preferably porous semiconductive ceramic having a grain boundary. A high resistance layer is formed in the grain boundary of the semiconductive ceramic and exhibits a humidity sensitive characteristic. First and second electrodes for withdrawing an electrical signal are formed spaced from each other on at least one major surface of the semiconductive ceramic base.

    摘要翻译: 湿度敏感装置包括具有晶界的优选多孔半导体陶瓷的基体。 在半导体陶瓷的晶界形成高电阻层,具有湿度敏感性。 用于取出电信号的第一和第二电极在半导电陶瓷基底的至少一个主表面上彼此间隔开。

    Method for producing glass powders
    3.
    发明授权
    Method for producing glass powders 失效
    制造玻璃粉的方法

    公开(公告)号:US07059153B2

    公开(公告)日:2006-06-13

    申请号:US09867856

    申请日:2001-05-30

    IPC分类号: C03B19/10 C03B19/14

    摘要: A powder of solid and spherical glass particles is easily manufactured by subjecting a mixed solution of a raw material oxide powder comprising a glass network-forming element, and an aqueous solution of a water-soluble compound comprising a glass-forming element other than the element of the raw material oxide powder to spray-thermal decomposition, wherein the spray-thermal decomposition temperature is set to be in a specific range according to the amount of the raw material oxide powder in the total of the amount of the raw material oxide powder and the oxide-converted amount of the water-soluble compound, as well as the average particle size of the glass powder to be manufactured.

    摘要翻译: 通过将包含玻璃网形成元素的原料氧化物粉末和除了元素之外的玻璃形成元素的水溶性化合物的水溶液进行混合,容易地制造固体和球形玻璃颗粒的粉末 的原料氧化物粉末进行喷雾热分解,其中喷雾热分解温度根据原料氧化物粉末的量相对于原料氧化物粉末的量的总量设定在特定范围内, 水溶性化合物的氧化物转化量以及待制造的玻璃粉末的平均粒径。

    Process for preparing powdered ceramic raw materials of complex oxide
    4.
    发明授权
    Process for preparing powdered ceramic raw materials of complex oxide 失效
    复合氧化物粉末陶瓷原料的制备方法

    公开(公告)号:US4820669A

    公开(公告)日:1989-04-11

    申请号:US856038

    申请日:1986-04-25

    摘要: A process for preparing a powdered ceramic raw material comprises the steps of(a) adding ammonia gas or an alkali to a first aqueous solution containing a water-soluble salt of lead capable of being precipitated as a hydroxide until the pH of the first solution reaches a value within the range of 9 to 10 to form a precipitate of lead hydroxide;(b) adding ammonia gas or alkali to a second aqueous solution containing at least one water-soluble salt or ceramic components other than lead capable of being precipitated as a hydroxide until the pH of the second solution reaches a value within the range of 9 to 10 to form a precipitate of hydroxide of said ceramic components;(c) mixing the resulting reaction mixtures, followed by separation of the precipitates of hydroxides from solution, washing with water and drying; and(d) calcining the precipitate to form complex oxides of said ceramic material.

    摘要翻译: 制备粉末状陶瓷原料的方法包括以下步骤:(a)将氨气或碱添加到含有能够以氢氧化物沉淀的铅的水溶性盐的第一水溶液中,直到第一溶液的pH达到 在9至10的范围内的值以形成氢氧化铅的沉淀物; (b)将氨气或碱加入含有至少一种水溶性盐或除了能够以氢氧化钠沉淀的铅的陶瓷成分的第二水溶液,直到第二溶液的pH达到9〜 以形成所述陶瓷组分的氢氧化物沉淀物; (c)混合得到的反应混合物,然后从溶液中分离氢氧化物沉淀物,用水洗涤并干燥; 和(d)煅烧沉淀物以形成所述陶瓷材料的复合氧化物。

    Production of magnetic oxide powder
    5.
    发明授权
    Production of magnetic oxide powder 失效
    生产磁性氧化物粉末

    公开(公告)号:US5626788A

    公开(公告)日:1997-05-06

    申请号:US447933

    申请日:1995-05-23

    摘要: A powder of magnetic oxides given by the general formula:MeFe.sub.2 O.sub.4where Me is at least one element of divalent metal element selected from the group consisting of Ni, Zn, Cu, Mn and Co, is produced by a method comprising the steps of preparing a magnetic oxide precursor composed of .alpha.-FeOOH and a complex carbonate compound of at least one divalent metal element deposited on surfaces of particles of .alpha.-FeOOH; and then treating the resultant magnetic oxide precursor with heat.

    摘要翻译: 由通式MeFe 2 O 4给出的磁性氧化物粉末,其中Me是选自Ni,Zn,Cu,Mn和Co中的至少一种选自Ni,Zn,Cu,Mn和Co的二价金属元素,通过包括以下步骤的方法制备: 由α-FeO​​OH组成的氧化物前体和沉积在α-FeO​​OH颗粒表面上的至少一种二价金属元素的复合碳酸酯化合物; 然后用热处理所得的磁性氧化物前体。

    Process for preparing a particulate ceramic material
    6.
    发明授权
    Process for preparing a particulate ceramic material 失效
    微粒陶瓷材料的制备方法

    公开(公告)号:US4537865A

    公开(公告)日:1985-08-27

    申请号:US629846

    申请日:1984-07-11

    摘要: A process for preparing a particulate ceramic material comprising the steps of:(a) adding carbon dioxide or an aqueous solution of a soluble carbonate to first aqueous solution of a nitrate or chloride of Ba, Sr, Ca or Mg in a first vessel to adjust the pH of said first aqueous solution to between 7 and 10 thereby forming a carbonate precipitate;(b) adding an aqueous solution of a soluble hydroxide to a second aqueous solution of a nitrate or chloride of Ti, Zr, Sn or Pb in a second vessel to adjust the pH of said second aqueous solution to between 7 and 10 thereby forming a hydroxide precipitate;(c) combining slurries containing the precipitates formed in said first and second vessels;(d) mixing the combined slurries;(e) passing the slurries through a filter;(f) washing the filter cake with water;(g) drying the filter cake to form a powder;(h) calcining the dried powder; and(i) grinding the calcined powder.

    摘要翻译: 一种制备颗粒状陶瓷材料的方法,包括以下步骤:(a)在第一容器中将二氧化碳或可溶性碳酸盐水溶液加入到Ba,Sr,Ca或Mg的硝酸盐或氯化物的第一水溶液中以调节 所述第一水溶液的pH为7至10,由此形成碳酸盐沉淀物; (b)在第二容器中将可溶性氢氧化物的水溶液加入到Ti,Zr,Sn或Pb的硝酸盐或氯化物的第二水溶液中以将所述第二水溶液的pH调节至7至10,从而形成 氢氧化物沉淀; (c)组合含有形成在所述第一和第二容器中的沉淀物的浆料; (d)混合组合的浆料; (e)使浆料通过过滤器; (f)用水清洗滤饼; (g)干燥滤饼以形成粉末; (h)煅烧干粉; 和(i)研磨煅烧粉末。

    Humidity sensitive device
    8.
    发明授权
    Humidity sensitive device 失效
    湿度敏感装置

    公开(公告)号:US4263576A

    公开(公告)日:1981-04-21

    申请号:US52502

    申请日:1979-06-27

    IPC分类号: G01N27/12 H01L7/00

    CPC分类号: G01N27/121

    摘要: A humidity sensitive device, including opposing electrodes formed on an insulating substrate, and a humidity sensitive film formed on the surface of the insulating substrate and at least between the opposing electrodes. The humidity sensitive film is obtained by coating on the surface of the insulating substrate a uniformly dispersed mixture including zirconium oxychloride and epoxy resin and heating the same.

    摘要翻译: 一种湿度敏感装置,包括形成在绝缘基板上的相对电极和形成在绝缘基板的表面上并且至少在相对电极之间的湿敏膜。 通过在绝缘基板的表面上涂布包含氯氧化锆和环氧树脂的均匀分散的混合物并加热来获得湿敏膜。