Homogeneity evaluation of Ca3Ta(Ga0.5Al0.5)3Si2O14 single crystal by the line-focus-beam ultrasonic material characterization system

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new method for evaluating homogeneities of Ca3Ta(Ga0.5Al0.5)3Si2O14 (CTGAS) single crystal was investigated using leaky surface acoustic wave (LSAW) velocities measured by the line-focus-beam ultrasonic material characterization (LFB-UMC) system. LSAW velocity changes due to Al-substitution effect were successfully extracted by using a relationship between two LSAW velocities propagating along different directions for Ca3TaGa3Si2O14 (CTGS) and Al-doped CTGS. Al-concentration variation of 0.219 at% was detected in diameter direction of the crystal ingot through the LSAW velocity measurements for Y-cut CTGAS specimen. The velocity resolution to Al-concentration is estimated to be ±0.0046 at% for Y-cut Z-propagating LSAW.

Original languageEnglish
Title of host publication2015 Joint IEEE International Symposium on the Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop, ISAF/ISIF/PFM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages190-192
Number of pages3
ISBN (Print)9781479999743
DOIs
Publication statusPublished - 2015 Jul 29
EventJoint IEEE International Symposium on the Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop, ISAF/ISIF/PFM 2015 - Singapore, Singapore
Duration: 2015 May 242015 May 27

Other

OtherJoint IEEE International Symposium on the Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop, ISAF/ISIF/PFM 2015
CountrySingapore
CitySingapore
Period15/5/2415/5/27

Keywords

  • chemical composition
  • homogeneity evaluation
  • Langasite-type crystals
  • leaky surface acoustic wave velocity
  • line-focus-beam ultrasonic material characterization system

ASJC Scopus subject areas

  • Instrumentation
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

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