公开(公告)号：US09425380B2

公开(公告)日：2016-08-23

申请号：US14130671

申请日：2012-06-26

Applicant: Jumpei Hayashi ,  Kenichi Takeda ,  Shinya Koyama ,  Kenichi Akashi ,  Tatsuo Furuta

Inventor： Jumpei Hayashi ,  Kenichi Takeda ,  Shinya Koyama ,  Kenichi Akashi ,  Tatsuo Furuta

IPC: H01L41/083 ,  B41J2/14 ,  C04B35/468 ,  C04B35/49 ,  C04B35/626 ,  C04B35/634 ,  H01L41/09 ,  H01L41/187 ,  H02N2/10 ,  H02N2/16

CPC classification number: H01L41/083 ,  B41J2/14201 ,  B41J2/14233 ,  B41J2202/03 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/6261 ,  C04B35/62685 ,  C04B35/63416 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3262 ,  C04B2235/40 ,  C04B2235/449 ,  C04B2235/652 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/72 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/85 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/1871 ,  H02N2/106 ,  H02N2/163

Abstract: A lead-free piezoelectric element that stably operates in a wide operating temperature range contains a lead-free piezoelectric material. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric material that includes a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (1.00≦a≦1.01, 0.02≦x≦0.30, 0.020≦y≦0.095, and y≦x) as a main component and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.02 parts by weight or more and 0.40 parts by weight or less on a metal basis.

Abstract translation: 在宽工作温度范围内稳定工作的无铅压电元件包含无铅压电材料。 压电元件包括​​第一电极，第二电极和压电材料，其包括由（Ba1-xCax）a（Ti1-yZry）O3（1.00≤a≤1.01,0.02≤x≤0.30）表示的钙钛矿型金属氧化物 ，0.020≤y≤0.095，y≤x）作为主要成分，掺入钙钛矿型金属氧化物中的锰。 相对于100重量份的钙钛矿型金属氧化物的锰含量为0.02重量份以上且0.40重量份以下。

公开(公告)号：US09231188B2

公开(公告)日：2016-01-05

申请号：US13989970

申请日：2011-12-15

Applicant: Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

Inventor： Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

IPC: H01L41/187 ,  B41J2/16 ,  C04B35/468 ,  C04B35/626 ,  C04B35/64 ,  H01L41/43 ,  H02N2/10 ,  H02N2/16 ,  B82Y30/00

CPC classification number: H01L41/43 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/62655 ,  C04B35/62695 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3222 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3287 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/441 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/761 ,  C04B2235/85 ,  H01L41/1871 ,  H02N2/106 ,  H02N2/163

Abstract: Provided are a barium titanate-based piezoelectric ceramics having satisfactory piezoelectric performance and a satisfactory mechanical quality factor (Qm), and a piezoelectric element using the same. Specifically provided are a piezoelectric ceramics, including: crystal particles; and a grain boundary between the crystal particles, in which the crystal particles each include barium titanate having a perovskite-type structure and manganese at 0.04% by mass or more and 0.20% by mass or less in terms of a metal with respect to the barium titanate, and the grain boundary includes at least one compound selected from the group consisting of Ba4Ti12O27 and Ba6Ti17O40, and a piezoelectric element using the same.

Abstract translation: 提供一种具有令人满意的压电性能和令人满意的机械品质因数（Qm）的钛酸钡基压电陶瓷，以及使用它的压电元件。 具体提供的是压电陶瓷，包括：晶体颗粒; 晶体粒子各自包含钛酸钙，钛酸钙，钛，钛，钛，钛，钛，钛，钛，钛，钛， 钛酸盐，并且晶界包括至少一种选自Ba 4 Ti 12 O 27和Ba 6 Ti 17 O 40的化合物和使用其的压电元件。

公开(公告)号：US09082976B2

公开(公告)日：2015-07-14

申请号：US13599689

申请日：2012-08-30

Applicant: Makoto Kubota ,  Takayuki Watanabe ,  Hisato Yabuta ,  Jumpei Hayashi ,  Nobuhiro Kumada ,  Satoshi Wada

Inventor： Makoto Kubota ,  Takayuki Watanabe ,  Hisato Yabuta ,  Jumpei Hayashi ,  Nobuhiro Kumada ,  Satoshi Wada

IPC: H01L41/18 ,  H01L41/187 ,  H01L41/00 ,  C04B35/00 ,  H02N2/00 ,  C04B35/468 ,  H01L41/43 ,  H01L41/09 ,  H02N2/10 ,  H02N2/16 ,  B41J2/14 ,  C04B35/475 ,  C04B35/626 ,  C04B35/64 ,  C01G23/00 ,  C01G53/00

CPC classification number: H01L41/187 ,  B41J2/14233 ,  B41J2202/03 ,  C01G23/006 ,  C01G53/70 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/76 ,  C04B35/4682 ,  C04B35/475 ,  C04B35/6265 ,  C04B35/64 ,  C04B2235/3206 ,  C04B2235/3215 ,  C04B2235/3234 ,  C04B2235/3236 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/5436 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/786 ,  H01L41/0973 ,  H01L41/1871 ,  H01L41/1878 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

Abstract: Provided is a piezoelectric ceramics that can achieve both high piezoelectric performance and a high Curie temperature. Also provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric ceramics. The piezoelectric ceramics include a perovskite-type metal oxide expressed by a general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3, where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.40≦x≦0.80, y satisfies 0≦y≦0.30, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied, and are oriented in a (111) plane in a pseudocubic expression.

Abstract translation: 提供能够实现高压电性能和高居里温度的压电陶瓷。 还提供了使用压电陶瓷的压电元件，排液头，超声波马达和除尘装置。 压电陶瓷包括由通式（1）表示的钙钛矿型金属氧化物：xBaTiO3-yBiFeO3-zBi（M0.5Ti0.5）O3，其中M表示选自Mg和 Ni，x满足0.40＆nlE; x＆nlE; 0.80，y满足0＆nlE; y＆nlE; 0.30，z满足0.05＆nlE; z＆nlE; 0.60，并且x + y + z = 1，并且在（111） 假性表达。

公开(公告)号：US08198199B2

公开(公告)日：2012-06-12

申请号：US12526308

申请日：2008-03-05

Applicant: Jumpei Hayashi ,  Takanori Matsuda ,  Tetsuro Fukui ,  Hiroshi Funakubo

Inventor： Jumpei Hayashi ,  Takanori Matsuda ,  Tetsuro Fukui ,  Hiroshi Funakubo

IPC: H01L21/31

CPC classification number: H01L41/0973 ,  H01L41/0815 ,  H01L41/319

Abstract: There are disclosed an epitaxial film, comprising: heating an Si substrate provided with an SiO2 layer with a film thickness of 1.0 nm or more to 10 nm or less on a surface of the substrate; andforming on the SiO2 layer by use of a metal target represented by the following composition formula: yA(1−y)B  (1), in which A is one or more elements selected from the group consisting of rare earth elements including Y and Sc, B is Zr, and y is a numeric value of 0.03 or more to 0.20 or less, the epitaxial film represented by the following composition formula: xA2O3−(1−x)BO2  (2), in which A and B are respectively same elements as A and B of the composition formula (1), and x is a numeric value of 0.010 or more to 0.035 or less.

Abstract translation: 公开了一种外延膜，其包括：在基板的表面上加热具有膜厚为1.0nm以上至10nm以下的SiO 2层的Si基板; 并使用由以下组成式表示的金属靶在SiO 2层上形成：yA（1-y）B（1），其中A是选自由Y和 Sc，B为Zr，y为0.03以上且0.20以下的数值，外延膜由以下组成式表示：xA 2 O 3 - （1-x）BO 2（2），其中A和B分别为 与组成式（1）的A和B相同的元素，x是0.010以上至0.035以下的数值。

公开(公告)号：US20120043853A1

公开(公告)日：2012-02-23

申请号：US13266221

申请日：2010-04-27

Applicant: Takayuki Watanabe ,  Jumpei Hayashi

Inventor： Takayuki Watanabe ,  Jumpei Hayashi

IPC: H01L41/04 ,  H01L41/18

CPC classification number: C01G35/006 ,  C01P2002/72 ,  C01P2006/40 ,  C04B35/495 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3258 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3298 ,  C04B2235/605 ,  C04B2235/76 ,  C04B2235/787 ,  C04B2235/80 ,  C04B2235/81 ,  H01L41/187

Abstract: A compound having a tungsten bronze structure exhibiting a high Curie temperature, good insulating resistance and mechanical quality factor, and excellent piezoelectric properties is provided. The compound contains a tungsten bronze structure oxide represented by general formula (1): x(BaB2O6)-y(CaB2O6)-z{(Bi1/2C1/2)B2O6}  (1) where B represents at least one of Nb and Ta; C represents at least one of Na and K; x+y+z=1; x satisfies 0.2≦x≦0.85; y satisfies 0≦y≦0.5; and z satisfies 0

Abstract translation: 提供了具有高居里温度，良好的绝缘电阻和机械品质因数以及优异的压电性能的钨青铜结构的化合物。 该化合物含有由通式（1）表示的钨青铜结构氧化物：x（BaB 2 O 6）-y（CaB 2 O 6）-z {（Bi1 / 2C1 / 2）B2O6}（1）其中B表示Nb和Ta中的至少一种 ; C表示Na和K中的至少一种; x + y + z = 1; x满足0.2＆nlE; x＆nlE; 0.85; y满足0＆nlE; y＆nlE; 0.5; z满足0

公开(公告)号：US20110193451A1

公开(公告)日：2011-08-11

申请号：US13023043

申请日：2011-02-08

Applicant: Takayuki Watanabe ,  Makoto Kubota ,  Jumpei Hayashi ,  Nobuhiro Kumada ,  Tomoaki Mochiduki

Inventor： Takayuki Watanabe ,  Makoto Kubota ,  Jumpei Hayashi ,  Nobuhiro Kumada ,  Tomoaki Mochiduki

IPC: H01L41/187 ,  C04B35/468 ,  C01G23/04

CPC classification number: H01L41/1871 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1646 ,  B82Y30/00 ,  C01G45/006 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C04B35/4682 ,  C04B35/6262 ,  C04B35/62645 ,  C04B35/6265 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/6567 ,  C04B2235/6583 ,  C04B2235/765 ,  C04B2235/767 ,  C04B2235/768 ,  C04B2235/787 ,  H01L41/43 ,  H02N2/163

Abstract: Provided is a manufacturing method for preferentially-oriented oxide ceramics having a high degree of crystal orientation. The manufacturing method includes: obtaining slurry containing an oxide crystal B having magnetic anisotropy; applying a magnetic field to the oxide crystal B, and obtaining a compact of the oxide crystal B; and subjecting the compact to oxidation treatment to obtain preferentially-oriented oxide ceramics including a compact of an oxide crystal C having a crystal system that is different from a crystal system of one of a part and a whole of the oxide crystal B. By (1) reacting raw materials, (2) reducing the oxide crystal A, or (3) keeping the oxide crystal A at high temperature and quenching the oxide crystal A, the oxide crystal B is obtained to be used in the slurry.

Abstract translation: 提供具有高度晶体取向的优先取向氧化物陶瓷的制造方法。 制造方法包括：获得含有具有磁各向异性的氧化物晶体B的浆料; 向氧化物晶体B施加磁场，得到氧化物晶体B的压实体; 对该成形体进行氧化处理，得到具有与氧化物晶体B的一部分和全部的晶体体系不同的晶体体系的氧化物晶体C的成形体的优先取向氧化物陶瓷。通过（1 ）使原料反应，（2）还原氧化物晶体A，或（3）将氧化物晶体A保持在高温并淬灭氧化物晶体A，得到氧化物晶体B用于浆料中。

公开(公告)号：US09614140B2

公开(公告)日：2017-04-04

申请号：US13989756

申请日：2011-11-18

Applicant: Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

Inventor： Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

IPC: H01L41/08 ,  H01L41/187 ,  B41J2/16 ,  C04B35/626 ,  B08B7/02 ,  H01L41/43 ,  H01L41/09 ,  H02N2/10 ,  H02N2/16

CPC classification number: C04B35/4682 ,  B08B7/02 ,  B08B7/028 ,  B41J2/14209 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  C04B35/62655 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3268 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/549 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/782 ,  C04B2235/786 ,  C04B2235/96 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/1871 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163 ,  H03H9/176

Abstract: A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact. The sintering includes (A) increasing the temperature of the compact to a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a temperature range of a liquid phase sintering process of the compact; (C) decreasing the temperature of the compact to the temperature range of the shrinking process of the compact; and (D) retaining the third temperature.

公开(公告)号：US09306149B2

公开(公告)日：2016-04-05

申请号：US13993721

申请日：2011-12-22

Applicant: Jumpei Hayashi ,  Hisato Yabuta ,  Makoto Kubota ,  Mikio Shimada ,  Satoshi Wada ,  Ichiro Fujii ,  Ryuta Mitsui ,  Nobuhiro Kumada

Inventor： Jumpei Hayashi ,  Hisato Yabuta ,  Makoto Kubota ,  Mikio Shimada ,  Satoshi Wada ,  Ichiro Fujii ,  Ryuta Mitsui ,  Nobuhiro Kumada

IPC: H01L41/187 ,  B41J2/14 ,  C04B35/468 ,  G02B27/00 ,  H01L41/09 ,  H02N2/10 ,  H04N5/217 ,  C04B35/26 ,  C04B35/475 ,  C04B35/626 ,  C04B35/632 ,  C04B35/634 ,  C04B35/638 ,  H02N2/16

CPC classification number: H01L41/1871 ,  B41J2/14233 ,  C04B35/26 ,  C04B35/4682 ,  C04B35/475 ,  C04B35/6262 ,  C04B35/6264 ,  C04B35/632 ,  C04B35/63416 ,  C04B35/63444 ,  C04B35/638 ,  C04B2235/3206 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/442 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/604 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/782 ,  C04B2235/785 ,  C04B2235/786 ,  G02B27/0006 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/1878 ,  H02N2/106 ,  H02N2/163 ,  H04N5/2171

Abstract: Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.

Abstract translation: 提供一种能够实现高压电性能和高居里温度的压电材料。 此外，提供了使用压电材料的压电元件，排液头，超声波马达和除尘装置。 压电材料包括由以下通式（1）表示的钙钛矿型金属氧化物：xBaTiO3-yBiFeO3-zBi（M0.5Ti0.5）O3（1），其中M表示至少一种选自 由Mg和Ni组成的组x满足0.25＆nlE; x＆nlE; 0.75，y满足0.15＆nlE; y＆nlE; 0.70，z满足0.05＆nlE; z＆nlE; 0.60，x + y + z = 1。

公开(公告)号：US09076969B2

公开(公告)日：2015-07-07

申请号：US13702998

申请日：2011-06-07

Applicant: Jumpei Hayashi ,  Takanori Matsuda ,  Takayuki Watanabe

Inventor： Jumpei Hayashi ,  Takanori Matsuda ,  Takayuki Watanabe

IPC: H01L41/187 ,  B08B7/02 ,  B41J2/14 ,  C01G33/00 ,  C04B35/495 ,  H01L41/43 ,  H02N2/10 ,  H02N2/16 ,  H01L41/18

CPC classification number: H01L41/1878 ,  B08B7/026 ,  B41J2/14233 ,  B41J2202/03 ,  C01G33/006 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2006/40 ,  C04B35/495 ,  C04B2235/3201 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3251 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3298 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/76 ,  C04B2235/787 ,  C04B2235/81 ,  H01L41/18 ,  H01L41/1871 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

Abstract: A piezoelectric material including a barium bismuth niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are barium, bismuth, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Ba/Nb=a, 0.30≦a≦0.40, and when Bi/Nb=b, 0.012≦b≦0.084. The tungsten content on a metal basis is 0.40 to 3.00 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation.

Abstract translation: 提供了包括具有高取向度的铌酸铋铋基钨青铜结构金属氧化物的压电材料。 还提供了一种压电元件，液体排出头，超声波马达和包括压电材料的除尘装置。 压电材料包括钨青铜结构金属氧化物，其包括钡，铋和铌的金属元素和钨。 金属元素以摩尔为基准满足以下条件：当Ba / Nb = a，0.30＆nlE; a＆nlE; 0.40，当Bi / Nb = b时，0.012＆lt; lE; b＆nlE; 0.084。 基于金属的钨含量相对于钨青铜结构金属氧化物100重量份为0.40〜3.00重量份。 钨青铜结构金属氧化物具有c轴取向。

公开(公告)号：US08932477B2

公开(公告)日：2015-01-13

申请号：US13266221

申请日：2010-04-27

Applicant: Takayuki Watanabe ,  Jumpei Hayashi

Inventor： Takayuki Watanabe ,  Jumpei Hayashi

IPC: C04B35/495 ,  C04B35/453 ,  H01L41/00 ,  C01G35/00 ,  H01L41/187

CPC classification number: C01G35/006 ,  C01P2002/72 ,  C01P2006/40 ,  C04B35/495 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3258 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3298 ,  C04B2235/605 ,  C04B2235/76 ,  C04B2235/787 ,  C04B2235/80 ,  C04B2235/81 ,  H01L41/187

Abstract: A compound having a tungsten bronze structure exhibiting a high Curie temperature, good insulating resistance and mechanical quality factor, and excellent piezoelectric properties is provided. The compound contains a tungsten bronze structure oxide represented by general formula (1): x(BaB2O6)-y(CaB2O6)-z{(Bi1/2C1/2)B2O6}  (1) where B represents at least one of Nb and Ta; C represents at least one of Na and K; x+y+z=1; x satisfies 0.2≦x≦0.85; y satisfies 0≦y≦0.5; and z satisfies 0

Abstract translation: 提供了具有高居里温度，良好的绝缘电阻和机械品质因数以及优异的压电性能的钨青铜结构的化合物。 该化合物含有由通式（1）表示的钨青铜结构氧化物：x（BaB 2 O 6）-y（CaB 2 O 6）-z {（Bi1 / 2C1 / 2）B2O6}（1）其中B表示Nb和Ta中的至少一种 ; C表示Na和K中的至少一种; x + y + z = 1; x满足0.2＆nlE; x＆nlE; 0.85; y满足0＆nlE; y＆nlE; 0.5; z满足0