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Selective Oxidation of Zirconium in Zr2Cu

Matija Paljević ; Ruđer Bošković Institute, PO.B. 1016, 10001 Zagreb, Croatia
Marijan Tudja ; Pliva d.d., Prilaz baruna Filipovića 25, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (221 KB) str. 413-426 preuzimanja: 166* citiraj
APA 6th Edition
Paljević, M. i Tudja, M. (1999). Selective Oxidation of Zirconium in Zr2Cu. Croatica Chemica Acta, 72 (2-3), 413-426. Preuzeto s https://hrcak.srce.hr/132181
MLA 8th Edition
Paljević, Matija i Marijan Tudja. "Selective Oxidation of Zirconium in Zr2Cu." Croatica Chemica Acta, vol. 72, br. 2-3, 1999, str. 413-426. https://hrcak.srce.hr/132181. Citirano 30.03.2020.
Chicago 17th Edition
Paljević, Matija i Marijan Tudja. "Selective Oxidation of Zirconium in Zr2Cu." Croatica Chemica Acta 72, br. 2-3 (1999): 413-426. https://hrcak.srce.hr/132181
Harvard
Paljević, M., i Tudja, M. (1999). 'Selective Oxidation of Zirconium in Zr2Cu', Croatica Chemica Acta, 72(2-3), str. 413-426. Preuzeto s: https://hrcak.srce.hr/132181 (Datum pristupa: 30.03.2020.)
Vancouver
Paljević M, Tudja M. Selective Oxidation of Zirconium in Zr2Cu. Croatica Chemica Acta [Internet]. 1999 [pristupljeno 30.03.2020.];72(2-3):413-426. Dostupno na: https://hrcak.srce.hr/132181
IEEE
M. Paljević i M. Tudja, "Selective Oxidation of Zirconium in Zr2Cu", Croatica Chemica Acta, vol.72, br. 2-3, str. 413-426, 1999. [Online]. Dostupno na: https://hrcak.srce.hr/132181. [Citirano: 30.03.2020.]

Sažetak
The high-temperature oxidation of Zr2Cu in dry oxygen is characterized by selective oxidation of zirconium. The excess of copper is accumulated in the matrix alloy at the alloy-oxide interface forming the Zr8Cu5 phase. The oxide layer consists of monoclinic ZrO2 and a small amount of CuO. Additionally, tetragonal ZrO2 appears up to 873 K at the surface, and Cu2O is formed above 873 K, deeper in the oxide layer. The reaction kinetics obeys a parabolic rate law. An activation energy of 54.4 kJ/mol has been estimated in the temperature range 773-1123 K. An anomalous decrease of the oxidation rate occurs at 1155-1223 K, after a strong reaction at 1073-1150 K.

Ključne riječi
corrosion; oxidation; alloys; Zr2Cu; high temperature; selective

Hrčak ID: 132181

URI
https://hrcak.srce.hr/132181

Posjeta: 258 *