Effect of Tb4O7 content on the optical and mechanical properties of transparent ceramics based on MgAl2O4

Research output: Contribution to journalConference article

Abstract

Transparent magnesium aluminate spinel (MgAl2O4, MAS) ceramics doped with different Tb4O7 concentrations from 0,1 to 5 wt% were fabricated by Spark Plasma Sintering (SPS) technique at temperature 1300 °C and uniaxial pressure 140 MPa. The diffuse transmittance of the undoped and Tb4O7-doped MAS-ceramics samples in visible spectral range reaches 65,32% and 54,7% (at λ = 600 nm) respectively. The microhardness varies from 16,62 ± 0,46 to 17,29 ± 0,34 GPa. The effect of terbium oxide on the optical and mechanical properties of MgAl2O4-based transparent ceramics is discussed.

Original languageEnglish
Pages (from-to)2089-2092
Number of pages4
JournalMaterials Today: Proceedings
Volume19
DOIs
Publication statusPublished - 2019
Event2019 International Conference on Modern Trends in Manufacturing Technologies and Equipment, ICMTMTE 2019 - Sevastopol, Russian Federation
Duration: 9 Sep 201913 Sep 2019

Keywords

  • Mechanical properties
  • MgAlO (MAS) transparent ceramics
  • Optical properties
  • Spark plasma sintering (SPS)
  • Terbium oxide

ASJC Scopus subject areas

  • Materials Science(all)

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