Conclusions
The different nature of the destruction of crucibles made from ZrO2 with additions of CaO and Ti during the melting of titanium was established, and also the influence of the accompanying processes on the microhardness of the molten titanium.
Wider testing of ZrO2 crucibles containing additions of titanium for melting metallic titanium and its alloys should be made in laboratory and industrial conditions with a detailed investigation of the quality of the metal obtained.
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Repenko, K.N., Gul'ko, N.V. & Getman, I.A. Reaction of metallic titanium with zirconia crucibles. Refractories 4, 42–45 (1963). https://doi.org/10.1007/BF01283227
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DOI: https://doi.org/10.1007/BF01283227