Mechanical properties of ferroelectric ceramic nanocomposites

Kwok Lun Lee, AI Kah Kah Soh, Xiao Xing Wang, Kin Wing Kwok

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

The micro- and nano-indentation techniques and compression tests were employed to determine the mechanical properties of PZT based composites dispersed with Al2O3nano-particles for comparison. Compared with the reduced modulus, the nano-hardness, which exhibited indentation size effect (ISE), seemed to be more sensitive to the indentation depth. The true hardness values were deduced, based on the modified proportional specimen resistance (PSR) model, from the depth sensing machine and micro-indenter. Both the micro- and nano-hardness of the nano-composites confirmed that the hardness was best improved by addition of 0.5wt% of Al2O3.
Original languageEnglish
Pages (from-to)607-613
Number of pages7
JournalInternational Journal of Nanoscience
Volume4
Issue number4
DOIs
Publication statusPublished - 1 Aug 2005

Keywords

  • Ferroelectric ceramic
  • Hardness
  • Micro-indentations
  • Modulus
  • Nanocomposites
  • Nanoindentations

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering

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