Y3Al5O12(YAG)-ZrO2 Binary eutectic composites obtained by melt quenching

Jose M. Calderon-Moreno, Masahiro Yoshimura

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We report here the formation and eutectic architecture of Y3Al5O12-ZrO2 eutectic composites obtained using a rapid eutectic solidification method. The preparation of bulk pellets by rapid eutectic quenching in the pseudo-binary system is presented. The phases present in the rapidly quenched composite, cubic yttria stabilized zirconia (YSZ), and yttrium aluminium garnet, Y3Al5O12(YAG), were determined by means of X-ray diffraction (XRD). Mutual substitution of yttria and zirconia in each phase was studied also by Raman spectroscopy. The eutectic morphology of the pseudo-binary eutectic was characterized by scanning electron microscopy (SEM). The eutectic composites showed a rod-like microstructure with eutectic spacings in the sub-micron range and could be obtained in a wide range of compositions along the Y3Al5O12-ZrO2 pseudobinary line of the Al2O3-Y2O3-ZrO2 ternary oxide diagram. Off-eutectic composites containing alumina or yttrium aluminium perovskite and showing a broken eutectic structure were also obtained.

Original languageEnglish
Pages (from-to)1250-1254
Number of pages5
JournalMaterials Science and Engineering A
Volume375-377
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2004 Jul

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>(YAG)-ZrO<sub>2</sub> Binary eutectic composites obtained by melt quenching'. Together they form a unique fingerprint.

Cite this