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

Jose M. Calderon-Moreno, Masahiro Yoshimura

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)1250-1254
頁數5
期刊Materials Science and Engineering A
375-377
發行號1-2 SPEC. ISS.
DOIs
出版狀態Published - 2004 七月

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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