Paper Title:
Interaction between the Ceramic CaZrO3 and the Melt of Titanium Alloys
  Abstract

The CaZrO3 complex oxide ceramic was synthesized in the development of the potential refractory for melting of titanium alloy, the crucible ( 40XH40mm) was prepared by the solid sintering of mixture of powder (CaO:ZrO2 =1:1) with a small amount of TiO2 as additive at 1750°C. The melting of TiNi and Ti6Al4V was carried out in the inducting furnace under vacuum or/and Ar atmosphere. The interfacial reaction between the melts of alloys and CaZrO3 refractory was investigated by scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDS). It is found that, the thickness of interfacial reaction layer between the ceramic CaZrO3 and the melt of titanium alloys (TiNi and Ti6Al4V) is approximately 30-300 μm, there are few elements such as Ca, Zr, Ti, and Ni diffused through the interfacial reaction layer. These results may provide the basement to designing a novel refractory for melting of titanium alloys.

  Info
Periodical
Edited by
Pietro VINCENZINI and James P. BENNETT
Pages
136-140
DOI
10.4028/www.scientific.net/AST.70.136
Citation
C. H. Li, Y. H. Gao, X. G. Lu, W. Z. Ding, Z. M. Ren, K. Deng, "Interaction between the Ceramic CaZrO3 and the Melt of Titanium Alloys", Advances in Science and Technology, Vol. 70, pp. 136-140, 2010
Online since
October 2010
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