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61. 发明授权

US5645753A Piezo-electric ceramic composition 失效
标题翻译：压电陶瓷组合物
公开(公告)号：US5645753A
公开(公告)日：1997-07-08
申请号：US445151
申请日：1995-05-19
申请人： Shuichi Fukuoka , Kousei Kamigaki , Kazutaka Uchi , Katsuhiko Onitsuka
发明人： Shuichi Fukuoka , Kousei Kamigaki , Kazutaka Uchi , Katsuhiko Onitsuka
IPC分类号： C04B35/491 , C04B35/499 , H01L41/187 , C04B35/49
CPC分类号： H01L41/187 , C04B35/491 , C04B35/499
摘要： A piezo-electric ceramic composition which is favorably used for such applications as ceramic filter, vibrator applying ultrasonic waves, piezo-electric buzzer, piezo-electric ignition unit, ultrasonic wave motor, piezo-electric fan and piezo-electric sensors such as acceleration sensor, knocking sensor, AE sensor, etc. and is particularly used as a member for constituting a piezo-electric actuator. The piezo-electric ceramic composition is a composite perovskite compound which contains, as metal components, Pb, Zr, Ti, Zn, Sb as well as Sr and Ba, or Pb, Zr, Ti, Zn, Sb and at least either one or Sr or Ba, and Ni and Te, wherein when the composition by the molar ratio of metal elements is expressed by the following general formula (1),Pb.sub.1-x-y Sr.sub.x Ba.sub.y (Zn.sub.1/3 Sb.sub.2/3).sub.a Zr.sub.b (Ni.sub.1/2 Te.sub.1/2).sub.c Ti.sub.1-a-b-c O.sub.3 (1)x, y, a, b and c satisfy the following relationships,0.ltoreq.x.ltoreq.0.140.ltoreq.y.ltoreq.0.140
摘要翻译：一种压电陶瓷组合物，适用于陶瓷过滤器，施加超声波的振动器，压电蜂鸣器，压电点火单元，超声波电机，压电风扇和压电传感器如加速度传感器爆震传感器，AE传感器等，特别用作构成压电致动器的部件。压电陶瓷组合物是复合钙钛矿化合物，其中含有作为金属成分的Pb，Zr，Ti，Zn，Sb以及Sr和Ba，或Pb，Zr，Ti，Zn，Sb和至少一种或 Sr或Ba，以及Ni和Te，其中当金属元素的摩尔比的组成由以下通式（1）表示时，Pb1-x-ySrxBay（Zn1 / 3Sb2 / 3）aZrb（Ni1 / 2Te1 / 2 ）cTi1-ab-cO3（1）x，y，a，b和c满足以下关系：0

62. 发明授权

US5433917A PZT ceramic compositions having reduced sintering temperatures and process for producing same 失效
标题翻译：具有降低烧结温度的PZT陶瓷组合物及其制造方法
公开(公告)号：US5433917A
公开(公告)日：1995-07-18
申请号：US121840
申请日：1993-09-16
申请人： Ashvin Srivastava , Amar Bhalla , L. Eric Cross
发明人： Ashvin Srivastava , Amar Bhalla , L. Eric Cross
IPC分类号： C04B35/491 , H01L41/187 , B22F3/10
CPC分类号： C04B35/491 , H01L41/1876 , H01L41/43
摘要： Process for producing novel fluxed PZT dielectric ceramic compositions having sintering temperatures below about 1000.degree., so as to be non-reactive with electrode layers when co-fired therewith. The PZT is sintered with an effective amount of an eutectic mixture of CuO and an oxide of an alkaline earth metal, preferably barium oxide and/or strontium oxide, to reduce the sintering temperature of the PZT composition below about 1000.degree. C. Dopant such as manganese oxide may be added to reduce the dielectric losses.
摘要翻译：制备烧结温度低于约1000℃的新型助焊剂PZT介电陶瓷组合物的方法，以便当与其共烧时与电极层不反应。 PZT用有效量的CuO和碱土金属的氧化物，优选氧化钡和/或氧化锶的共晶混合物烧结，以将PZT组合物的烧结温度降低到约1000℃以下。掺杂剂例如可以加入氧化锰以减少介电损耗。

63. 发明授权

US5419844A Piezoelectric ceramics 失效
标题翻译：压电陶瓷
公开(公告)号：US5419844A
公开(公告)日：1995-05-30
申请号：US81480
申请日：1993-06-23
申请人： Kiyoshi Hase , Akira Ando , Yasunobu Yoneda , Toshihiko Kittaka, deceased
发明人： Kiyoshi Hase , Akira Ando , Yasunobu Yoneda , Toshihiko Kittaka, deceased
IPC分类号： C04B35/491 , H01L41/187 , C04B35/472
CPC分类号： H01L41/187 , C04B35/491
摘要： Disclosed herein are piezoelectric ceramics composed of lead titanate zirconate, which is expressed in PbZr.sub.1-z Ti.sub.z O.sub.3, where z=0.45 to 0.54, with 0.1 to 8 mole percent of the Pb atoms being replaced with at least one element selected from a group of Ca, Sr and Ba, and containing Mn in a range of 0.005 to 0.9 percent by weight of the whole in terms of MnO.sub.2.
摘要翻译：本文公开了由PbZr1-zTizO3表示的锆钛酸铅，其中z = 0.45〜0.54，0.1〜8摩尔％的Pb原子被选自Ca， Sr和Ba，并且以MnO 2计，Mn的总量为0.005-0.9重量％。

64. 发明授权

US5112433A Process for producing sub-micron ceramic powders of perovskite compounds with controlled stoichiometry and particle size 失效
标题翻译：用于生产具有控制的硅藻土和颗粒尺寸的PEROVSKITE化合物的亚微米陶瓷粉末的方法
公开(公告)号：US5112433A
公开(公告)日：1992-05-12
申请号：US295166
申请日：1988-12-09
申请人： William J. Dawson , Scott L. Swartz
发明人： William J. Dawson , Scott L. Swartz
IPC分类号： C04B35/49 , C01G23/00 , C01G25/00 , C01G33/00 , C04B35/468 , C04B35/472 , C04B35/486 , C04B35/491 , C04B35/497 , C04B35/626 , H01B3/00 , H01L41/187 , H01L41/24
CPC分类号： C04B35/626 , C04B35/4682 , C04B35/472 , C04B35/486 , C04B35/491 , C04B35/497
摘要： A process for making a crystalline ceramic powder having a perovskite structure, ABO.sub.3, that includes the steps of preparing a first acidic solution containing one or more elements selected from the group consisting of hafnium, zirconium, titanium, niobium, tantalum, uranium, iron, antimony, lanthanum, bismuth, thorium, indium, nickel, manganese, neodymium, samarium, cobalt, tungsten, tin, vanadium, dysprosium, praseodymium, yttrium, promethium, europium, cerium, ytterbium, lutetium, scandium, gadolinium, terbium, holmium, erbium, thulium, chromium, potassium, and lithium; preparing a second basic solution containing a sufficient concentration of hydroxide to provide a predetermined pH when mixed with the first solution; adding the first acidic solution to the second basic solution to precipitate a substantially pure mixture of hydroxides; washing the precipitate to remove hydroxide and salt impurities that solubilize lead or other constituent elements of the powder; preparing an aqueous slurry of the washed precipitate and adding oxides or hydroxides of one or more of the elements selected from the group consisting of barium, strontium, calcium, magnesium, lead, zinc, yttrium, magnesium, manganese, cobalt, zinc and nickel; hydrothermally treating the slurry at an elevated temperature and pressure for a time sufficient to form the powder; and drying the powder; wherein when lead, zirconium and titanium are selected the perovskite has the general formula: Pb(Zr.sub.1-x Ti.sub.x)O.sub.3, wherein x has a value of:(1) between 0 and 0.44;(2) between 0.44 and 0.55, and a total dopant and solid solution substitution level between 13 and 50 mole percent;(3) between 0.55 and 1.00; and wherein when x has a value of (1) or (3) then the total dopant and solid substitution level ranges from 0 to 50 mole percent.

65. 发明授权

US5032304A Method of manufacturing transparent high density ceramic material 失效
标题翻译：透明高密度陶瓷材料的制造方法
公开(公告)号：US5032304A
公开(公告)日：1991-07-16
申请号：US474340
申请日：1990-02-02
申请人： Sachio Toyota
发明人： Sachio Toyota
IPC分类号： C04B35/491 , C04B35/645
CPC分类号： C04B35/491 , C04B35/6455
摘要： A method of manufacturing a transparent, high density green material which comprises: sintering a PLZT ceramic compact in a vacuum of 1.times.10.sup.-2 to 1.times.10.sup.-5 Torr at 1150.degree. C. to 1250.degree. C. for 0.5 to 2 hours, fabricating the sintering product into a sheet of less than 1.5 mm thickness, embedding the sheet into a heat resistant vessel tightly packed with a powder of 50 .mu.m to 3000 .mu.m grain size comprising at least one of fused alumina, zirconia and magnesia and then applying HIP under 500 to 700 kg/cm.sup.2, at 1050.degree. C. to 1200.degree. C., for 0.5 to 2 hours by using an inert gas as a pressure medium. Ceramics for optical devices having high transparency and density can be mass produced economically in a short time.

66. 发明授权

US4219866A Ceramic capacitor having a dielectric of (Pb,La) (Zr,Ti)O.sub.3 and BaTiO.sub.3 失效
标题翻译：具有（Pb，La）（Zr，Ti）O 3和BaTiO 3电介质的陶瓷电容器
公开(公告)号：US4219866A
公开(公告)日：1980-08-26
申请号：US2837
申请日：1979-01-12
申请人： Galeb H. Maher
发明人： Galeb H. Maher
IPC分类号： C04B35/46 , C04B35/49 , C04B35/491 , H01B3/12 , H01G4/10 , H01G4/12
CPC分类号： C04B35/491 , H01G4/1245
摘要： A ceramic capacitor has a dielectric body including a ceramic and a low melting flux. The ceramic consists of a major proportion of an antiferroelectric lead lanthanum zirconate titanate and a minor proportion of a barium titanate. The body may also include up to 10 weight percent of a low melting flux, which is especially useful in monolithic ceramic capacitors having buried silver-containing electrodes. These dielectric bodies exhibit at moderate voltage stress levels an improved combination of properties including a high dielectric constant that is relatively stable with changing voltage and temperature.
摘要翻译：陶瓷电容器具有包括陶瓷和低熔点的电介质体。陶瓷由主要比例的反铁电铅镧锆酸铅和少量的钛酸钡构成。该主体还可以包括高达10重量％的低熔点焊剂，其特别适用于具有埋藏的含银电极的叠层陶瓷电容器。这些电介质体表现出中等的电压应力水平，包括改进的电压和温度相对稳定的高介电常数的组合。

67. 发明授权

US4169803A Ferromagnetic piezoelectric ceramic composition 失效
标题翻译：铁磁压电陶瓷组合物
公开(公告)号：US4169803A
公开(公告)日：1979-10-02
申请号：US837264
申请日：1977-09-27
申请人： Yoichi Tanaka , Masamichi Tsuruta , Koji Takahashi , Tsutomu Hasegawa , Makoto Hori
发明人： Yoichi Tanaka , Masamichi Tsuruta , Koji Takahashi , Tsutomu Hasegawa , Makoto Hori
IPC分类号： C04B35/491 , H01L41/187 , C04B35/46 , C04B35/48 , C04B35/64
CPC分类号： H01L41/187 , C04B35/491
摘要： A piezoelectric ceramic composition which comprises the combination of a pyrochlore composite oxide and a base ceramic mixture of PbTiO.sub.3 and PbZrO.sub.3.
摘要翻译：一种压电陶瓷组合物，其包含烧绿石复合氧化物和PbTiO 3和PbZrO 3的基础陶瓷混合物的组合。

68. 发明授权

US4152280A Molten salt synthesis of modified lead zirconate titanate solid solution powder 失效
标题翻译：改性铅锌酸盐固体溶液粉末的盐酸盐合成
公开(公告)号：US4152280A
公开(公告)日：1979-05-01
申请号：US896633
申请日：1978-04-17
申请人： Ronald H. Arendt , Joseph H. Rosolowski
发明人： Ronald H. Arendt , Joseph H. Rosolowski
IPC分类号： C04B35/491 , H01L41/187 , C04B35/46 , C01G23/00 , C04B35/48
CPC分类号： C04B35/491 , H01L41/187 , Y10S423/12
摘要： Sodium chloride and/or potassium chloride is added to an aqueous suspension of the oxides of lead, titanium, zirconium and cationic modifier and stirred until the suspension converts to a gel which is then heated, evaporating the water and melting said chloride in which the oxides dissolve and react precipitating modified lead zirconium titanate.

69. 发明授权

US4119886A Pulse generator 失效
标题翻译：脉冲发生器
公开(公告)号：US4119886A
公开(公告)日：1978-10-10
申请号：US762130
申请日：1977-01-24
申请人： Shigeru Jyomura , Iwao Matsuyama , Katsuki Miyauchi , Tsune Miyashita , Gyozo Toda
发明人： Shigeru Jyomura , Iwao Matsuyama , Katsuki Miyauchi , Tsune Miyashita , Gyozo Toda
IPC分类号： C04B35/491 , H05B41/04 , C04B35/46 , C04B35/00 , C04B35/48 , H05B41/14
CPC分类号： H05B41/044 , C04B35/491 , Y10S315/02
摘要： A pulse generator comprising an induction element, and a nonlinear condenser whose dielectric material portion is made of ferroelectric ceramics represented by a general formula of (Pb.sub.1-x-y, Ba.sub.x, Sr.sub.y)(Ti.sub.z, Zr.sub.1-z)O.sub.3.
摘要翻译：包括感应元件的脉冲发生器和由通式（Pb1-x-y，Bax，Sry）（Tiz，Zr1-z）O3表示的电介质材料部分由铁电陶瓷制成的非线性冷凝器。

70. 发明授权

US4071323A Diffusion crucible and slab member with common metal component in the vapor phase 失效
标题翻译：在蒸汽相中具有普通金属成分的扩散坩埚和板坯构件
公开(公告)号：US4071323A
公开(公告)日：1978-01-31
申请号：US730918
申请日：1976-10-08
申请人： Robert L. Holman
发明人： Robert L. Holman
IPC分类号： C04B35/491 , C04B35/495 , C30B33/00 , B01D9/00
CPC分类号： C04B35/495 , C04B35/491 , C30B29/30 , C30B33/00 , Y10T117/10 , Y10T117/1016
摘要： A slotted crucible for altering the nonstoichiometry of a crystalline member by promoting conditions of vapor phase equilibrium between the member and the slotted crucible in which it is placed. The slotted crucible comprises material sharing a common vapor species with the crystalline member and provides an atmosphere of substantially constant thermodynamic activity with respect to the shared vapor phase upon isothermal heating of the member and crucible.
摘要翻译：一种开槽坩埚，用于通过促进构件与其放置的开槽坩埚之间的气相平衡条件来改变结晶构件的非化学计量学。开槽的坩埚包括与结晶构件共享共同的蒸气物质的材料，并且在构件和坩埚的等温加热时提供相对于共用气相基本恒定的热力学活性的气氛。

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