Photostimulable europium-doped barium fluorobromide phosphors
    3.
    发明授权
    Photostimulable europium-doped barium fluorobromide phosphors 失效
    可光激发的铕掺杂的溴氟化钡荧光粉

    公开(公告)号:US5227254A

    公开(公告)日:1993-07-13

    申请号:US717453

    申请日:1991-06-19

    IPC分类号: C09K11/77

    CPC分类号: C09K11/7731 Y10S428/917

    摘要: A europium-doped barium fluorohalide photostimulable phosphor comprises an amount of oxygen sufficient to create a concentration of anion vacancies effective to substantially increase the stored photostimulable energy, compared to a non-oxygen-treated phosphor.

    摘要翻译: 铕掺杂的钡卤化物可光激发磷光体包括足以产生阴离子空位浓度的氧气,其与非氧处理的荧光体相比有效大大增加储存的可光激发能。

    X-ray intensifying screen based on rare earth tantalate
    4.
    发明授权
    X-ray intensifying screen based on rare earth tantalate 失效
    基于稀土钽酸盐的X射线增强屏

    公开(公告)号:US4225653A

    公开(公告)日:1980-09-30

    申请号:US23966

    申请日:1979-03-26

    申请人: Lothar H. Brixner

    发明人: Lothar H. Brixner

    摘要: X-ray intensifying screen based on a rare earth tantalate phosphor, and process for preparing the phosphor, said phosphor having the monoclinic M' structure and selected from:(a) YNb.sub.x Ta.sub.1-x O.sub.4, where x is 0 to about 0.15;(b) LuNb.sub.x Ta.sub.1-x O.sub.4, where x is 0 to about 0.2;(c) Y.sub.1-y Tm.sub.y TaO.sub.4, where y is 0 to about 0.03;(d) a solid solution of (a) and (b);(e) a solid solution of (a) and (c);(f) Y.sub.1-y Tb.sub.y TaO.sub.4, where y is about 0.001 to about 0.15;(g) Lu.sub.1-y Tb.sub.y TaO.sub.4, where y is about 0.001 to about 0.15;(h) Gd.sub.1-y Tb.sub.y TaO.sub.4, where y is about 0.001 to about 0.15;(i) a solid solution of at least two of (f), (g) and (h);(j) any of (a) to (i) wherein up to 45 mole percent of the yttrium, lutetium or gadolinium is replaced by lanthanum;(k) any of (a) to (i) wherein up to 15 mole percent of the yttrium, lutetium or gadolinium is replaced by ytterbium; and(l) any of (a), (b), (c), (d) and (e) wherein up to 15 mole percent of the yttrium or lutetium is replaced by gadolinium.

    摘要翻译: 基于稀土钽酸盐荧光体的X射线增强屏幕,以及制备荧光体的方法,所述荧光体具有单斜晶M'结构,并选自:(a)YNbxTa1-xO4,其中x为0至约0.15; (b)LuNbxTa1-xO4,其中x为0至约0.2; (c)Y1-yTmyTaO4,其中y为0至约0.03; (d)(a)和(b)的固溶体; (e)(a)和(c)的固溶体; (f)Y1-yTaTaO4,其中y为约0.001至约0.15; (g)Lu1-yTtaTaO4,其中y为约0.001至约0.15; (h)Gd1-yTbyTaO4,其中y为约0.001至约0.15; (i)(f),(g)和(h)中的至少两个的固溶体; (j)(a)至(i)中任一项,其中至多45摩尔%的钇,镥或钆被镧代替; (k)(a)至(i)中任一项,其中钇,镥或钆的至多15摩尔%被镱代替; 和(l)(a),(b),(c),(d)和(e)中任一项,其中高达15摩尔%的钇或镥被钆代替。

    Process for producing an optical waveguide and the product therefrom
    5.
    发明授权
    Process for producing an optical waveguide and the product therefrom 失效
    光波导及其制品的制造方法

    公开(公告)号:US4740265A

    公开(公告)日:1988-04-26

    申请号:US1417

    申请日:1987-01-08

    摘要: There is disclosed a process for producing an optical waveguide comprising contacting at least one optically smooth surface of a single crystal of K.sub.1-x Rb.sub.x TiOMO.sub.4 wherein x is from 0 to 1 and M is P or As with a specified molten salt of at least one of Rb, Cs and Tl at a temperature of from about 200.degree. C. to about 600.degree. C. for a time sufficient to increase the surface index of refraction at least about 0.00025 with respect to the index of refraction of the starting crystal, and cooling the resulting crystal. The product made thereby and a waveguide device using the same are also disclosed.

    摘要翻译: 公开了一种用于制造光波导的方法,包括使K1-xRbxTiOMO4的单晶的至少一个光学平滑表面接触,其中x为0至1,M为P或As,并与Rb的至少一种的规定熔融盐接触 ,Cs和T1在约200℃至约600℃的温度下进行足以使折射率的表面折射率相对于起始晶体的折射率至少约0.00025的时间,并冷却 结晶。 由此制成的产品和使用该产品的波导装置也被公开。

    Multilayer ceramic capacitors
    7.
    发明授权
    Multilayer ceramic capacitors 失效
    多层陶瓷电容器

    公开(公告)号:US4228482A

    公开(公告)日:1980-10-14

    申请号:US860211

    申请日:1977-12-13

    IPC分类号: C04B35/47 H01B3/12 H01G4/12

    CPC分类号: C04B35/47 H01B3/12 H01G4/1263

    摘要: Multilayer capacitors of good electrical properties can be made by firing, in air at low temperatures, certain modified lead titanate dielectric compositions. The dielectric compositions have the formula(Sr.sub.x Pb.sub.1-x TiO.sub.3).sub.a (PbMg.sub.0.5 W.sub.0.5 O.sub.3).sub.bwhereinx is 0-0.10,a is 0.35-0.5,b is 0.5-0.65, anda plus b equals one.

    摘要翻译: 具有良好电性能的多层电容器可以通过在低温空气中焙烧某些改性的钛酸铅电介质组合物来制备。 电介质组合物具有式(Sr x P b 1-x Ti O 3)a(PbMg 0.5 W 0.5 O 3)b,其中x为0-0.10,a为0.35-0.5,b为0.5-0.65,加b等于1。

    Process for producing an optical waveguide
    8.
    发明授权
    Process for producing an optical waveguide 失效
    光波导的制造方法

    公开(公告)号:US4766954A

    公开(公告)日:1988-08-30

    申请号:US129058

    申请日:1987-12-11

    摘要: There is disclosed a process for producing an optical waveguide comprising contacting at least one optically smooth surface of a single crystal of K.sub.1-x Rb.sub.x TiOMO.sub.4 wherein x is from 0 to 1 and M is P or As with a specified molten salt of at least one of Rb, Cs and Tl at a temperature of from about 200.degree. C. to about 600.degree. C. for a time sufficient to increase the surface index of refraction at least about 0.00025 with respect to the index of refraction of the starting crystal, and cooling the resulting crystal. The product made thereby and a waveguide device using the same are also disclosed.

    摘要翻译: 公开了一种用于制造光波导的方法,包括使K1-xRbxTiOMO4的单晶的至少一个光学平滑表面接触,其中x为0至1,M为P或As,并与Rb的至少一种的规定熔融盐接触 ,Cs和T1在约200℃至约600℃的温度下进行足以使折射率的表面折射率相对于起始晶体的折射率至少约0.00025的时间,并冷却 结晶。 由此制成的产品和使用该产品的波导装置也被公开。

    Preparation of lanthanum bismuth oxychloride phosphors
    9.
    发明授权
    Preparation of lanthanum bismuth oxychloride phosphors 失效
    氯氧化镧荧光粉的制备

    公开(公告)号:US4488983A

    公开(公告)日:1984-12-18

    申请号:US487895

    申请日:1983-04-22

    申请人: Lothar H. Brixner

    发明人: Lothar H. Brixner

    CPC分类号: C09K11/777

    摘要: A process is provided for preparing lanthanum bismuth oxychloride phosphors of formula La.sub.1-x-y Bi.sub.x RE.sub.y OCl, where RE is a rare earth element, x is 0.001 to about 0.25, and y is 0 to 0.005. The process is characterized by a single firing step, and comprises (a) forming an intimate mixture of stoichiometric quantities of La.sub.2 O.sub.3, Bi.sub.2 O.sub.3, and a rare earth oxide of formula RE.sub.2 O.sub.3, together with NH.sub.4 Cl and a flux comprising BaCl.sub.2, where quantities of NH.sub.4 Cl and BaCl.sub.2, by weight, can be independently chosen from between about one-third to about one-half that of the combined weights of the oxides; (b) firing said mixture, in an inert container and in air, according to a time-temperature sequence in which the mixture is heated (1) from 1 to about 4 hours at about 275.degree. C. to 325.degree. C., followed by (2) from 2 to about 4 hours at about 275.degree. C. to 500.degree. C., and concluded by (3) from about 8 to 10 hours at about 800.degree. C. to 1000.degree. C.; and (c) recovering said phosphor from said mixture by washing the mixture with water.

    摘要翻译: 提供了制备式La1-x-yBixREyOCl的镧氧化铋荧光体的方法,其中RE为稀土元素,x为0.001至约0.25,y为0至0.005。 该方法的特征在于单个煅烧步骤,并且包括(a)形成化学计量量的La 2 O 3,Bi 2 O 3和式RE 2 O 3的稀土氧化物与NH 4 Cl和包含BaCl 2的助熔剂的紧密混合物,其中NH 4 Cl和 BaCl 2可以独立地选自氧化物的组合重量的约三分之一至约一半; (b)在惰性容器中和空气中根据时间 - 温度顺序将混合物在约275℃至325℃下加热(1)1至约4小时,随后 在约275℃至500℃下通过(2)2至约4小时,并且在(3)约800至1000℃下约8至10小时得出结论。 和(c)通过用水洗混合物从所述混合物回收所述磷光体。