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    IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME
    1.
    发明公开
    IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME 审中-公开
    改进方法电泳沉积FERRO电动MOVIES使用TRI-功能性添加剂和组合物对于这种应用

    公开(公告)号：EP1259660A2

    公开(公告)日：2002-11-27

    申请号：EP00971675.4

    申请日：2000-10-25

    申请人： Cerel (Ceramic Technologies) Ltd.

    发明人： GAL-OR, Leah ,  GOLDNER, Roni ,  SEZIN, Nina ,  PISMANY, Ala ,  BRANDON, David

    IPC分类号： C25D13/02

    CPC分类号： C25D13/02 ,  H01L41/317 ,  H01L41/43

    摘要： An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature. Visual and physical examination of stand alone and patterned PZT deposited films show excellent quality obtained in manufacturing a diversity of piezoelectric products, featuring exceptionally high green film uniformity, thickness distribution, and reproducibility to within ± 2 microns for 20 micrometer film thickness. The phosphate ester additive functions by improving stabilization and control of suspension characteristics and properties during the electrophoretic migration process, and by improving desired dimensions, characteristics, and electrical properties of the deposited green film. Thin or thick ferroelectric films, either as stand alone products, or formed on geometrically demanding patterned or non-patterned substrates are produced by using the method. The improved method is applicable to different ferroelectric particulate materials and to different substrates used for manufacturing piezoelectric elements and devices, in a cost effective manner.

    METHOD OF ELECTROPHORETIC DEPOSITION OF CERAMIC BODIES FOR USE IN MANUFACTURING DENTAL APPLIANCES
    2.
    发明授权
    METHOD OF ELECTROPHORETIC DEPOSITION OF CERAMIC BODIES FOR USE IN MANUFACTURING DENTAL APPLIANCES 有权
    电泳涂膜参与制造牙科产品陶瓷体的方法中使用

    公开(公告)号：EP1073781B1

    公开(公告)日：2005-06-08

    申请号：EP99911422.6

    申请日：1999-03-16

    申请人： Cerel (Ceramic Technologies) Ltd.

    发明人： GAL-OR, Leah ,  GOLDNER, Roni ,  CHERNIAK, Liudmila ,  SEZIN, Nina ,  LIUBOVICH, Sonia

    IPC分类号： C25D13/02 ,  C25D1/14 ,  A61C13/00

    CPC分类号： A61C13/001 ,  A61C5/77 ,  A61C13/0022 ,  C25D1/14 ,  C25D13/02 ,  H05K1/0306 ,  H05K3/022

    摘要： A method for electrophoretic deposition of ceramic particles as a green body shaped as a dental appliance, the method comprising the steps of (a) forming a suspension of the ceramic particles in a first polar solvent, the ceramic particles constituting at least about 5 % of the first suspension by weight; (b) passing a direct electrical current through the first suspension, using a deposition electrode (20) shaped as the dental appliance to form a green body; (c) coating the green body with glass particles; and (d) sintering the resultant coated body for obtaining a glass coated all-ceramic dental appliance.

    摘要翻译： 一种用于陶瓷粒子的电泳沉积，成形为牙科器具生坯的方法，该方法包括以下步骤：（a）在第一极性溶剂中形成的悬浮液的陶瓷颗粒的，该陶瓷颗粒构成至少约5％的 第一悬浮液（重量）; （B）使直流电流通过所述第一悬浮液中，使用成形为牙科器具以形成生坯的沉积电极（20）; （C）涂覆生坯玻璃颗粒; 和（d）烧结所得涂装体，用于获得涂覆全瓷牙科器具的玻璃。

    Method of electrophorectic deposition of ceramic bodies for use in manufacturing dental appliances
    6.
    发明公开
    Method of electrophorectic deposition of ceramic bodies for use in manufacturing dental appliances 审中-公开
    一种用于陶瓷成型体的电泳沉积用于生产牙科用具的过程

    公开(公告)号：EP1645663A2

    公开(公告)日：2006-04-12

    申请号：EP05104278.6

    申请日：1999-03-16

    申请人： Cerel (Ceramic Technologies) Ltd.

    发明人： GAL-OR, Leah ,  GOLDNER, Roni ,  CHERNIAK, Liudmilla ,  SEZIN, Nina ,  LIUBOVICH, Sonia

    IPC分类号： C25D13/02 ,  C25D1/14 ,  A61C13/00

    CPC分类号： A61C13/001 ,  A61C5/77 ,  A61C13/0022 ,  C25D1/14 ,  C25D13/02 ,  H05K1/0306 ,  H05K3/022

    摘要： A method for electrophoretic deposition of ceramic particles as a green body shaped as a dental appliance, the method comprising the steps of (a) forming a suspension of the ceramic particles in a first polar solvent, the ceramic particles constituting at least about 5% of the first suspension by weight; (b) passing a direct electrical current through the first suspension, using a deposition electrode (20) shaped as the dental appliance to form a green body; (c) coating the green body with glass particles; and (d) sintering the resultant coated body for obtaining a glass coated all-ceramic dental appliance.

    摘要翻译： 一种用于陶瓷粒子的电泳沉积，成形为牙科器具生坯的方法，该方法包括以下步骤：（a）在第一极性溶剂中形成的悬浮液的陶瓷颗粒的，该陶瓷颗粒构成至少约5％的 第一悬浮液（重量）; （B）使直流电流通过所述第一悬浮液中，使用成形为牙科器具以形成生坯的沉积电极（20）; （C）涂覆生坯玻璃颗粒; 和（d）烧结所得涂装体，用于获得涂覆全瓷牙科器具的玻璃。