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Modern high-density oxide-based ceramics with a controlled microstructure. Part V. Chemical-resistant high-density yttrium-, scandium-, and alumina-based ceramics

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Abstract

Data on the sintering of Sc2O3 ceramics are presented, showing that the degree of densification of the sintered products increases upon dry grinding of the initial Sc2O3 powders in a planetary mill. This treatment also equalizes the technological properties of powders from different batches. Properties of sintered Sc2O3 ceramics are presented. The strength level of the material can be increased by using certain oxide additives. In particular, introduction of La2O3 increases the flexural strength of the ceramics to the level of 250–270 MPa.

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References

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Authors and Affiliations

  1. D. I. Mendeleev Russian Chemical Engineering Unversity, Moscow, Russia

    E. S. Lukin

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  1. E. S. Lukin
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Translated from Ogneupory i Tekhnicheskaya Keramika, No. 2, pp. 2–6, February, 1997.

For the beginning see No. 1 (1996); continued in Nos. 2, 4–7, 9, 12 (1996) and No. 1 (1997).

(To be continued.)

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Lukin, E.S. Modern high-density oxide-based ceramics with a controlled microstructure. Part V. Chemical-resistant high-density yttrium-, scandium-, and alumina-based ceramics. Refractories and Industrial Ceramics 38, 47–51 (1997). https://doi.org/10.1007/BF02767832

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  • DOI: https://doi.org/10.1007/BF02767832

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