GB692706A - Electrostrictive ceramics and transducers utilizing them - Google Patents

Electrostrictive ceramics and transducers utilizing them

Info

Publication number
GB692706A
GB692706A GB6219/50A GB621950A GB692706A GB 692706 A GB692706 A GB 692706A GB 6219/50 A GB6219/50 A GB 6219/50A GB 621950 A GB621950 A GB 621950A GB 692706 A GB692706 A GB 692706A
Authority
GB
United Kingdom
Prior art keywords
electrostrictive ceramics
transducers utilizing
titanate
transducers
utilizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6219/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB692706A publication Critical patent/GB692706A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
    • H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/853—Ceramic compositions
    • H10N30/8536—Alkaline earth metal based oxides, e.g. barium titanates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Signal Processing (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

A refractory composition comprises barium titanate in an amount substantially equal to but not less than 96 per cent. and the remainder lead titanate or lead oxide. It is polarized at a temperature equal to or greater than the Curie point. A temporary binder, e.g. halowax in carbon tetrachloride, is added to aid pressing, the pressed bodies then being fired.
GB6219/50A 1949-03-18 1950-03-13 Electrostrictive ceramics and transducers utilizing them Expired GB692706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US692706XA 1949-03-18 1949-03-18

Publications (1)

Publication Number Publication Date
GB692706A true GB692706A (en) 1953-06-10

Family

ID=22087841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6219/50A Expired GB692706A (en) 1949-03-18 1950-03-13 Electrostrictive ceramics and transducers utilizing them

Country Status (2)

Country Link
DE (1) DE834026C (en)
GB (1) GB692706A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003739A1 (en) * 1986-11-07 1988-05-19 Plessey Australia Pty. Limited A composite sonar transducer for operation as a low frequency underwater acoustic source
AU594852B2 (en) * 1986-11-07 1990-03-15 Gec Marconi Systems Pty Limited A composite sonar transducer for operation as a low frequency underwater acoustic source
CN110721890A (en) * 2019-10-25 2020-01-24 海鹰企业集团有限责任公司 Light and thin medium-high frequency broadband transduction element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101032B (en) * 1954-04-27 1961-03-02 Dr Hans Karl Hach Ceramic electrostrictive transducer and process for its manufacture
DE1075875B (en) * 1954-08-14 1960-02-18 J U H Krautkraemer Ges Fuer El Device for damping electromechanical oscillators, especially for the ultrasonic echo method of material testing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003739A1 (en) * 1986-11-07 1988-05-19 Plessey Australia Pty. Limited A composite sonar transducer for operation as a low frequency underwater acoustic source
US4878207A (en) * 1986-11-07 1989-10-31 Plessey Australia Pty. Ltd. Composite sonar transducer for operation as a low frequency underwater acoustic source
AU594852B2 (en) * 1986-11-07 1990-03-15 Gec Marconi Systems Pty Limited A composite sonar transducer for operation as a low frequency underwater acoustic source
CN110721890A (en) * 2019-10-25 2020-01-24 海鹰企业集团有限责任公司 Light and thin medium-high frequency broadband transduction element

Also Published As

Publication number Publication date
DE834026C (en) 1952-03-13

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