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Design, fabrication and characterization of piezoelectric transducer made of doped barium titanate / Amr Hashim Mohammed Mohammed ; Supervised Emad Eldin Farouk Elkashif , Ahmed Mohamed Emam , Ahmed Abdelsalam Hassan

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Amr Hashim Mohammed Mohammed , 2019Description: 80 P. : charts , facsimiles ; 25cmOther title:
  • تصميم وتصنيع ودراسة خواص محول كهروانضغاطى مصنوع من تيتانات الباريوم المطعم [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production Summary: A lead free Barium Calcium Zirconatetitanate (BCZT) dielectric material was prepared by conventional solid state reaction method.Thermal analyses, XRD and SEM techniques were used for the characterization ofthe prepared powder,as well as the sintered compacts. The results show that, irrespective of the milling time, Highvalues ofthe relative permittivity approach 24000.The results also showed an improvement in the piezoelectric behavior, represented in mechanical quality factor (Qm~545) and electromechanical coupling coefficient (kp~74.5 %), which attributed to the higher Remnant polarization(Pr = 56.1 uC/cm2).The obtained results in this study indicate that, these materials can be suitable candidates for ultrasonic transducers
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.13.M.Sc.2019.Am.D (Browse shelf(Opens below)) Not for loan 01010110080689000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.13.M.Sc.2019.Am.D (Browse shelf(Opens below)) 80689.CD Not for loan 01020110080689000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production

A lead free Barium Calcium Zirconatetitanate (BCZT) dielectric material was prepared by conventional solid state reaction method.Thermal analyses, XRD and SEM techniques were used for the characterization ofthe prepared powder,as well as the sintered compacts. The results show that, irrespective of the milling time, Highvalues ofthe relative permittivity approach 24000.The results also showed an improvement in the piezoelectric behavior, represented in mechanical quality factor (Qm~545) and electromechanical coupling coefficient (kp~74.5 %), which attributed to the higher Remnant polarization(Pr = 56.1 uC/cm2).The obtained results in this study indicate that, these materials can be suitable candidates for ultrasonic transducers

Issued also as CD

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