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Porous Ceramic Based on Calcium Pyrophosphate

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Refractories and Industrial Ceramics Aims and scope

An Erratum to this article was published on 01 July 2015

Porous ceramic, whose composition is mainly represented by calcium β-pyrophosphate β-Ca2P2O7, is prepared from a porous mixture containing synthetic calcium γ-pyrophosphate γ-Ca2P2O7 and milled 1-aqueous sodium dihydrophosphate in an amount from 2.5 to 40 wt.%. Ceramic sintering proceeds by a liquid-phase sintering mechanism due to melt formation in the system Na2O–CaO–P2O5. Ceramic microstructure after firing in the range 800 – 1000°C makes it possible to consider sodium polyphosphate not only as a component facilitating sintering by a liquid-phase mechanism, but also as an inorganic pore-forming agent.

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The work was carried out with financial support of the RFFI (grants 13-08-01056, 12-08-33125 mol_a_ved, 14-08-31699, 12-03-01025, 12-08-00681), and also with support of the program of fundamental research of OKhNM RAN “Creation of new metal, ceramic, glass-polymer, and composite materials.” The work was performed using equipment acquired due to facilities of the “Programs for development of Moscow university.”

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Authors and Affiliations

  1. M. V. Lomonosov Moscow State University, Moscow, Russia

    T. F. Safronova, V. I. Putlyaev, A. E. Averina & E. S. Klimashina

  2. M. V. Lomonosov Moscow State University, Materials Science Faculty, Moscow, Russia

    T. F. Safronova, V. I. Putlyaev, Ya. Yu. Filippov, D. S. Larionov, P. V. Evdokimov, E. S. Klimashina & V. K. Ivanov

  3. FGBUN N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia

    V. K. Ivanov

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  1. T. F. Safronova
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  2. V. I. Putlyaev
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  3. Ya. Yu. Filippov
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  4. D. S. Larionov
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  5. P. V. Evdokimov
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  6. A. E. Averina
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  7. E. S. Klimashina
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  8. V. K. Ivanov
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Correspondence to T. F. Safronova.

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Translated from Novye Ogneupory, No. 1, pp. 46 – 51, January 2015.

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Safronova, T.F., Putlyaev, V.I., Filippov, Y.Y. et al. Porous Ceramic Based on Calcium Pyrophosphate. Refract Ind Ceram 56, 43–47 (2015). https://doi.org/10.1007/s11148-015-9782-8

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  • DOI: https://doi.org/10.1007/s11148-015-9782-8

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