公开(公告)号：US20140009038A1

公开(公告)日：2014-01-09

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: H01L41/187

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 composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).

Abstract translation: 提供具有良好压电性能和机械强度的钛酸钡压电陶瓷和包括陶瓷的压电元件。 制造压电陶瓷的方法包括：形成由包含钛酸钡颗粒的氧化物粉末组成的压块，烧结该压块，以及降低烧结后的压块的温度。 烧结包括（A）将压坯的温度在压坯的收缩过程的温度范围内提高到第一温度; （B）在（A）之后的压块的液相烧结工艺的温度范围内将压坯的温度提高到第二温度; （C）在（B）之后的压坯的收缩过程的温度范围内将压坯的温度降低到第三温度; 和（D）在（C）之后保持第三温度。

公开(公告)号：US20130270965A1

公开(公告)日：2013-10-17

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 ,  H01L41/09

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 @ x @ 0.75，y满足0.15 @ y @ 0.70，z满足0.05 @ z @ 0.60，x + y + z = 1。

公开(公告)号：US08529785B2

公开(公告)日：2013-09-10

申请号：US12508968

申请日：2009-07-24

Applicant: Makoto Kubota ,  Kaoru Miura ,  Toshihiro Ifuku ,  Jumpei Hayashi ,  Masaki Azuma ,  Olga Alexandrovna Smirnova ,  Hiroshi Funakubo ,  Hiroshi Uchida ,  Nobuhiro Kumada ,  Satoshi Wada ,  Takashi Iijima ,  Soichiro Okamura

Inventor： Makoto Kubota ,  Kaoru Miura ,  Toshihiro Ifuku ,  Jumpei Hayashi ,  Masaki Azuma ,  Olga Alexandrovna Smirnova ,  Hiroshi Funakubo ,  Hiroshi Uchida ,  Nobuhiro Kumada ,  Satoshi Wada ,  Takashi Iijima ,  Soichiro Okamura

IPC: C04B35/495 ,  C04B35/00 ,  H01L41/18 ,  H01L41/187

CPC classification number: H01L41/1878 ,  C04B35/2658 ,  C04B35/44 ,  C04B35/475 ,  C04B35/645 ,  C04B2235/3217 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/441 ,  C04B2235/449 ,  C04B2235/76 ,  C04B2235/765 ,  C04B2235/768 ,  H01L41/318 ,  Y10T428/265

Abstract: Provided is a piezoelectric material excellent in piezoelectricity. The piezoelectric material includes a perovskite-type complex oxide represented by the following General Formula (1). A(ZnxTi(1-x))yM(1-y)O3  (1) wherein A represents at least one kind of element containing at least a Bi element and selected from a trivalent metal element; M represents at least one kind of element of Fe, Al, Sc, Mn, Y, Ga, and Yb; x represents a numerical value satisfying 0.4≦x≦0.6; and y represents a numerical value satisfying 0.1≦y≦0.9.

Abstract translation: 提供压电性优异的压电材料。 压电材料包括由以下通式（1）表示的钙钛矿型复合氧化物。 A（Zn x Ti（1-x））yM（1-y）O 3（1）其中A表示至少一种至少含有Bi元素并选自三价金属元素的元素; M表示Fe，Al，Sc，Mn，Y，Ga和Yb中的至少一种元素; x表示满足0.4 @ x @ 0.6的数值; y表示满足0.1≤y≤0.9的数值。

公开(公告)号：US20130127298A1

公开(公告)日：2013-05-23

申请号：US13580061

申请日：2011-02-28

Applicant: Makoto Kubota ,  Kaoru Miura ,  Hisato Yabuta ,  Takayuki Watanabe ,  Jumpei Hayashi ,  Hiroshi Funakubo ,  Tomoaki Yamada ,  Shintaro Yasui ,  Keisuke Yazawa ,  Hiroshi Uchida ,  Jun-ichi Nagata

Inventor： Makoto Kubota ,  Kaoru Miura ,  Hisato Yabuta ,  Takayuki Watanabe ,  Jumpei Hayashi ,  Hiroshi Funakubo ,  Tomoaki Yamada ,  Shintaro Yasui ,  Keisuke Yazawa ,  Hiroshi Uchida ,  Jun-ichi Nagata

IPC: H01L41/18

CPC classification number: H01L41/18 ,  C04B35/01 ,  C04B35/016 ,  C04B35/2625 ,  C04B35/44 ,  C04B35/453 ,  C04B35/475 ,  C04B35/6325 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/76 ,  C04B2235/765 ,  C04B2235/768 ,  C04B2235/787 ,  H01L41/0805 ,  H01L41/0973 ,  H01L41/1878 ,  H01L41/316 ,  H01L41/318 ,  H02N2/106 ,  H02N2/163

Abstract: Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3  General formula (1) where: A represents a Bi element, or one or more kinds of elements selected from the group consisting of trivalent metal elements and containing at least a Bi element; M represents at least one kind of an element selected from the group consisting of Fe, Al, Sc, Mn, Y, Ga, and Yb; and 0.9≦x≦1.25, 0.4≦j≦0.6, 0.4≦k≦0.6, 0.09≦l≦0.49, 0.19≦m≦0.64, 0.13≦n≦0.48, and l+m+n=1 are satisfied.

Abstract translation: 提供具有良好的压电性能的Bi基压电材料。 压电材料包括由以下通式（1）表示的钙钛矿型金属氧化物：Ax（ZnjTi（1-j））l（MgkTi（1-k））mMnO3通式（1）其中：A表示Bi元素 ，或选自三价金属元素并且至少含有Bi元素的一种或多种元素; M表示选自Fe，Al，Sc，Mn，Y，Ga和Yb中的至少一种元素; 和0.9 @ x @ 1.25，0.4 @ j @ 0.6，0.4 @ k @ 0.6，0.09 @ l @ 0.49，0.19 @ m @ 0.64，0.13 @ n @ 0.48和l + m + n = 1。

公开(公告)号：US20130088120A1

公开(公告)日：2013-04-11

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 ,  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：US20130056671A1

公开(公告)日：2013-03-07

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: H01L41/187 ,  H05B6/00 ,  H01L41/04 ,  B08B7/02 ,  B41J2/045 ,  H02N2/00

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 O≦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O＆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：US09419204B2

公开(公告)日：2016-08-16

申请号：US14130477

申请日：2012-06-26

Applicant: Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

Inventor： Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

IPC: H01L41/187 ,  C04B35/468 ,  C04B35/49 ,  C04B35/626

CPC classification number: H01L41/1871 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3262 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/79

Abstract: A lead-free piezoelectric material that does not undergo depolarization in a wide operating temperature range and has a good piezoelectric constant is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (where 1.00≦a≦1.01, 0.125≦x≦0.175, and 0.055≦y≦0.090) 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 0.10 parts by weight or less on a metal basis.

Abstract translation: 提供一种在宽工作温度范围内不经过去极化并具有良好的压电常数的无铅压电材料。 压电材料包括以（Ba1-xCax）a（Ti1-yZry）O3（其中1.00≤a≤1.01,0.125≤x≤0.175,0.055≤y≤0.090）为主要成分的钙钛矿型金属氧化物， 和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0.10重量份以下。

公开(公告)号：US09082975B2

公开(公告)日：2015-07-14

申请号：US13580061

申请日：2011-02-28

Applicant: Makoto Kubota ,  Kaoru Miura ,  Hisato Yabuta ,  Takayuki Watanabe ,  Jumpei Hayashi ,  Hiroshi Funakubo ,  Tomoaki Yamada ,  Shintaro Yasui ,  Keisuke Yazawa ,  Hiroshi Uchida ,  Jun-ichi Nagata

Inventor： Makoto Kubota ,  Kaoru Miura ,  Hisato Yabuta ,  Takayuki Watanabe ,  Jumpei Hayashi ,  Hiroshi Funakubo ,  Tomoaki Yamada ,  Shintaro Yasui ,  Keisuke Yazawa ,  Hiroshi Uchida ,  Jun-ichi Nagata

IPC: H01L41/187 ,  H01L41/18 ,  C04B35/01 ,  C04B35/26 ,  C04B35/44 ,  C04B35/453 ,  C04B35/475 ,  C04B35/632 ,  H01L41/08 ,  H01L41/09 ,  H02N2/10 ,  H02N2/16 ,  H01L41/316 ,  H01L41/318

CPC classification number: H01L41/18 ,  C04B35/01 ,  C04B35/016 ,  C04B35/2625 ,  C04B35/44 ,  C04B35/453 ,  C04B35/475 ,  C04B35/6325 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/76 ,  C04B2235/765 ,  C04B2235/768 ,  C04B2235/787 ,  H01L41/0805 ,  H01L41/0973 ,  H01L41/1878 ,  H01L41/316 ,  H01L41/318 ,  H02N2/106 ,  H02N2/163

Abstract: Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3  General formula (1) where: A represents a Bi element, or one or more kinds of elements selected from the group consisting of trivalent metal elements and containing at least a Bi element; M represents at least one kind of an element selected from the group consisting of Fe, Al, Sc, Mn, Y, Ga, and Yb; and 0.9≦x≦1.25, 0.4≦j≦0.6, 0.4≦k≦0.6, 0.09≦l≦0.49, 0.19≦m≦0.64, 0.13≦n≦0.48, and l+m+n=1 are satisfied.

Abstract translation: 提供具有良好的压电性能的Bi基压电材料。 压电材料包括由以下通式（1）表示的钙钛矿型金属氧化物：Ax（ZnjTi（1-j））l（MgkTi（1-k））mMnO3通式（1）其中：A表示Bi 元素或选自三价金属元素并且至少含有Bi元素的一种或多种元素; M表示选自Fe，Al，Sc，Mn，Y，Ga和Yb中的至少一种元素; 其中n为1，n为1，n为1，n为1，n为1，n为1，n为1，n为1， 1满足

公开(公告)号：US09054309B2

公开(公告)日：2015-06-09

申请号：US13702996

申请日：2011-06-07

Applicant: Jumpei Hayashi ,  Takanori Matsuda ,  Takayuki Watanabe

Inventor： Jumpei Hayashi ,  Takanori Matsuda ,  Takayuki Watanabe

IPC: H01L41/04 ,  H01L41/187 ,  B08B7/02 ,  C01F11/00 ,  C01G33/00 ,  C04B35/495 ,  H01L41/43 ,  H02N2/10 ,  H02N2/16 ,  B41J2/14

CPC classification number: H01L41/1871 ,  B08B7/026 ,  B41J2/14233 ,  C01F11/00 ,  C01G33/006 ,  C01P2002/72 ,  C04B35/495 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/76 ,  C04B2235/787 ,  C04B2235/79 ,  C04B2235/81 ,  H01L41/04 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

Abstract: A piezoelectric material including a strontium calcium sodium 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 strontium, calcium, sodium, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Sr/Nb=a, 0.320≦a≦0.430, when Ca/Nb=b, 0.008≦b≦0.086, and when Na/Nb=c, 0.180≦c≦0.200. The tungsten content on a metal basis is 0.40 to 3.20 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锶钙铌酸铌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，其包括锶，钙，钠和铌的金属元素和钨。 金属元素以摩尔计满足以下条件：当Ca / Nb = b，0.008＆nlE; b＆nlE; 0.086时，当Sr / Nb = a，0.320＆nlE; a＆nlE; 0.430;当Na / Nb = c，0.180＆ c＆nlE; 0.200。 相对于钨青铜结构金属氧化物100重量份，金属的钨含量为0.40〜3.20重量份。 钨青铜结构金属氧化物具有c轴取向。

公开(公告)号：US20140145106A1

公开(公告)日：2014-05-29

申请号：US14130477

申请日：2012-06-26

Applicant: Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

Inventor： Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

IPC: H01L41/187

CPC classification number: H01L41/1871 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3262 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/79

Abstract: A lead-free piezoelectric material that does not undergo depolarization in a wide operating temperature range and has a good piezoelectric constant is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (where 1.00≦a≦1.01, 0.125≦x≦0.175, and 0.055≦y≦0.090) 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 0.10 parts by weight or less on a metal basis.

Abstract translation: 提供一种在宽工作温度范围内不经过去极化并具有良好的压电常数的无铅压电材料。 压电材料包括由（Ba1-xCax）a（Ti1-yZry）O3（其中1.00＆amp; nlE; a＆nlE; 1.01,0.125和nlE; x＆lt; lI; 0.175和0.055＆amp; nlE; y＆nlE; 0.090）表示的钙钛矿型金属氧化物， 主要成分和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0.10重量份以下。