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Research in the Area of Preparing Materials Based on Fuzed Quartz HCBS. Part 4. Study of Isothermal and Nonisothermal Sintering Kinetics

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Refractories and Industrial Ceramics Aims and scope

Isothermal and nonisothermal sintering are studied for castings based both on fuzed quartz suspensions with different fineness, and cast systems with a granular filler based on them. An effect is detected of considerable sintering of the test materials in the specimen heating stage (nonisothermal sintering) up to a final firing temperature of 1250°C. Depending on original specimen solid phase dispersion and particle grain size composition for the majority of materials their optimum properties are achieved after isothermal exposure for 0.5 – 1.0 h at 1250°C. Although exceeding it is accompanied by a certain reduction in porosity, it is connected with material weakening in view of the initial stage of christobalitization.

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Correspondence to Yu. E. Pivinskii.

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Part 1 of the article was published in Novye Ogneupory No. 7 (2014), and Parts 2 and 3 in Nos. 1 and 3 (2015).

Translated from Novye Ogneupory, No. 4, pp. 20 – 28, April, 2015.

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Pivinskii, Y.E., Dyakin, P.V. Research in the Area of Preparing Materials Based on Fuzed Quartz HCBS. Part 4. Study of Isothermal and Nonisothermal Sintering Kinetics. Refract Ind Ceram 56, 172–179 (2015). https://doi.org/10.1007/s11148-015-9807-3

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  • DOI: https://doi.org/10.1007/s11148-015-9807-3

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