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Hardening of iron, cobalt, and nickel phosphate cements

Sychev, M.M. / Komlev, V.G.

The authors give schemes of thermal transformations of cobalt and nickel phosphate octahydrate, together with the physicochemical characteristics of the products thus obtained. Petrographic, differential-thermal, and x-ray structural analyses have established that the secondary formation responsible for hardening of Fe2O3-based cement is FePO4 x 2H2O - a mixture of ferrous and ferric phosphates is formed during hardening of FeO-based cement. The secondary formations are present in the hardened material in the amorphous state. In hardened cobalt and nickel phosphate cements, the secondary formations are amorphous cobalt and nickel octahydrates.

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Hardening of iron, cobalt, and nickel phosphate cements

Sychev, M.M. / Komlev, V.G.

The authors give schemes of thermal transformations of cobalt and nickel phosphate octahydrate, together with the physicochemical characteristics of the products thus obtained. Petrographic, differential-thermal, and x-ray structural analyses have established that the secondary formation responsible for hardening of Fe2O3-based cement is FePO4 x 2H2O - a mixture of ferrous and ferric phosphates is formed during hardening of FeO-based cement. The secondary formations are present in the hardened material in the amorphous state. In hardened cobalt and nickel phosphate cements, the secondary formations are amorphous cobalt and nickel octahydrates.

Hardening of iron, cobalt, and nickel phosphate cements

Sychev, M.M. / Komlev, V.G.

The authors give schemes of thermal transformations of cobalt and nickel phosphate octahydrate, together with the physicochemical characteristics of the products thus obtained. Petrographic, differential-thermal, and x-ray structural analyses have established that the secondary formation responsible for hardening of Fe2O3-based cement is FePO4 x 2H2O - a mixture of ferrous and ferric phosphates is formed during hardening of FeO-based cement. The secondary formations are present in the hardened material in the amorphous state. In hardened cobalt and nickel phosphate cements, the secondary formations are amorphous cobalt and nickel octahydrates.

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Title:

Hardening of iron, cobalt, and nickel phosphate cements

Additional title:

Haertung von Eisen-, Kobalt- und Nickel-Phosphat-Zementen

Contributors:

Sychev, M.M. (author) / Komlev, V.G. (author)

Published in:

Inorg. Mater. ; 7 ; 1429-1431

Publication date:

1971

Size:

3 Seiten, 3 Bilder, 7 Quellen

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

BINDEMITTEL , CHEMIE , PHOSPHAT , ZEMENT , ROENTGENBEUGUNG , DIFFERENZIALTHERMOANALYSE , PETROGRAPHIE

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