JP2007191689A - 同調可能な誘電率を有する複合材料、その製造方法、およびそれを備える物品 - Google Patents
同調可能な誘電率を有する複合材料、その製造方法、およびそれを備える物品 Download PDFInfo
- Publication number
- JP2007191689A JP2007191689A JP2006316430A JP2006316430A JP2007191689A JP 2007191689 A JP2007191689 A JP 2007191689A JP 2006316430 A JP2006316430 A JP 2006316430A JP 2006316430 A JP2006316430 A JP 2006316430A JP 2007191689 A JP2007191689 A JP 2007191689A
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- composition
- dielectric constant
- ceramic filler
- tunable
- perovskite
- Prior art date
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/006—Other inhomogeneous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
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Abstract
【解決手段】高分子材料、および非線形誘電セラミック充填剤を含む組成物が開示され、この非線形誘電セラミック充填剤は約100以上の誘電率を有し、この組成物の誘電率は同調可能である。高分子材料、およびペロブスカイトを含む組成物も開示され、この組成物の誘電率は同調可能であり、さらにこの組成物は約2から約100の誘電率を有する。組成物を形成するように高分子樹脂を非線形誘電セラミック充填剤とブレンドするステップを含む方法も開示され、この非線形誘電セラミック充填剤は約100以上の誘電率を有し、前記組成物の誘電率は同調可能である。
【選択図】図1
Description
ここでAは、カルシウム(Ca)またはカドミウム(Cd)である。
ここでA’はビスマス(Bi)、イットリウム(Y)である。
ここでxは約0.3以下であり、yは約0.1以下である。
Claims (18)
- 高分子材料と、
非線形誘電セラミック充填剤とを含む組成物であって、前記非線形誘電セラミック充填剤は100以上の誘電率を有し、かつ前記組成物の誘電率が同調可能である
組成物。 - 2から100の誘電率を有する、請求項1記載の組成物。
- 前記組成物の前記誘電率が前記組成物に電場を加えることによって同調可能である、請求項1記載の組成物。
- 前記非線形誘電セラミック充填剤が1000以上の誘電率を有する、請求項1記載の組成物。
- 前記非線形誘電セラミック充填剤が10000以上の誘電率を有する、請求項1記載の組成物。
- 前記非線形誘電セラミック充填剤がペロブスカイトであり、前記ペロブスカイトが化学式(I)を有するカルシウム−銅−チタン−酸化物を含む、請求項1記載の組成物。
ACu3Ti4O12 (I)
ここでAは、カルシウムまたはカドミウムである。 - 前記ペロブスカイトが化学式(II)を有する、請求項6記載の組成物。
A’2/3Cu3Ti3FeO12 (II)
ここでA’はビスマスまたはイットリウムである。 - 前記ペロブスカイトが一般的な化学式(III)を有するリチウム・チタン共ドープニッケル酸化物(LTNOs)である、請求項7記載の組成物。
LixTiyNi1−x−yO (III)
ここでxは0.3以下であり、かつyは0.1以下である。 - 前記非線形誘電セラミック充填剤が、Mg2SiO4、CaTiO3、MgZrSrTiO6、MgTiO3、MgAl2O4、WO3、SnTiO4、ZrTiO4、CaSiO3、CaSnO3、CaWO4、CaZrO3、MgTa2O6、MgZrO3、CaZrO3、BaZrO3、SrZrO3、BaSnO3、CaSnO3、MgSnO3、Bi2O3/2SnO2、MgNb2O6、SrNb2O6、BaNb2O6、MgTa2O6、BaTa2O6、BaTiO3、SrTiO3、バリウムストロンチウムチタン酸塩、ストロンチウム−ドープランタンマンガン酸塩、ランタンアルミニウム酸化物LaAlO3、ランタンストロンチウム銅酸化物LSCO、イットリウムバリウム銅酸化物、または前述の酸化物のうちの少なくとも1つを含む組合せを含む、請求項1記載の組成物。
- 前記組成物の誘電率が、前記組成物を直流電流電場および/または交流電流電場に掛けることによって同調可能である、請求項1記載の組成物。
- 前記組成物の誘電率が、前記組成物を電場からの電圧または周波数に掛けることによって同調可能である、請求項10記載の組成物。
- 高分子材料と、
ペロブスカイトとを含む組成物であって、前記組成物の誘電率が同調可能であり、さらに前記組成物が2から100の誘電率を有する組成物。 - 前記ペロブスカイトが化学式(I)を有するカルシウム−銅−チタン−酸化物を含み、
ACu3Ti4O12 (I)
ここでAは、カルシウムまたはカドミウムであり、
または前記ペロブスカイトが化学式(II)を有し、
A’2/3Cu3Ti3FeO12 (II)
ここでA’はビスマスまたはイットリウムであり、
または前記ペロブスカイトが一般的な化学式(III)を有するリチウム・チタン共ドープニッケル酸化物(LTNOs)であり、
LixTiyNi1−x−yO (III)
ここでxは0.3以下であり、かつyは0.1以下である、請求項12記載の組成物。 - 請求項13記載の組成物を備える物品。
- 組成物を形成するために高分子樹脂を非線形誘電セラミック充填剤とブレンドするステップを含む方法であって、前記非線形誘電セラミック充填剤が100以上の誘電率を有し、かつ前記組成物の誘電率が同調可能である、方法。
- 前記組成物を成型するステップをさらに含む、請求項15記載の方法。
- 前記組成物を射出成型するステップをさらに含む、請求項15記載の方法。
- 請求項15記載の方法によって製造される物品。
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US11/285,901 US7741396B2 (en) | 2005-11-23 | 2005-11-23 | Composites having tunable dielectric constants, methods of manufacture thereof, and articles comprising the same |
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