Artículo
Dos Santos Afonso, M.; Di Risio, C.D.; Zysmilich, M.; Marqués, R.O.; Blesa, M.A. "A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation" (1996) Radiation Physics and Chemistry. 48(6):715-718
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Abstract:
The influence of gamma and reactor (n+γ) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. Two opposite effects affect the dissolution rate: the annealing due to the gamma radiation and the generation of new imperfect coordination polyhedra. A model for the kinetic processes was proposed and the kinetic parameters were calculated. The influence of gamma and reactor (n + γ) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. Two opposite effects affect the dissolution rate: the annealing due to the gamma radiation and the generation of new imperfect coordination polyhedra. A model for the kinetic processes was proposed and the kinetic parameters were calculated.
Registro:
| Documento: | Artículo |
| Título: | A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation |
| Autor: | Dos Santos Afonso, M.; Di Risio, C.D.; Zysmilich, M.; Marqués, R.O.; Blesa, M.A. |
| Ciudad: | Tarrytown |
| Filiación: | Depto. de Quimica Inorganica, Analitica y Quimica Fisica,/INQUIMAE, Universidad de Buenos Aires, Pabellón II, 1428 Buenos Aires, Argentina Departamento Quimica de Reactores, Comision Nac. de Energia Atomica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina |
| Palabras clave: | Annealing; Crystals; Dissolution; Gamma rays; Mathematical models; Radiation effects; Radioactivation analysis; Reaction kinetics; Synthesis (chemical); Thermal effects; Imperfect coordination polyhedra; Low temperature wet method; Magnetite microcrystals; Magnetite; magnetite; article; crystal; dissolution; gamma radiation; model; neutron radiation |
| Año: | 1996 |
| Volumen: | 48 |
| Número: | 6 |
| Página de inicio: | 715 |
| Página de fin: | 718 |
| DOI: | http://dx.doi.org/10.1016/S0969-806X(97)81358-8 |
| Título revista: | Radiation Physics and Chemistry |
| Título revista abreviado: | RADIAT. PHYS. CHEM. |
| ISSN: | 0969806X |
| CODEN: | RPCHD |
| CAS: | magnetite, 1309-38-2, 1317-61-9 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0969806X_v48_n6_p715_DosSantosAfonso |
Referencias:
- Blesa, M.A., Maroto, A.J.G., Regazzoni, A.E., (1993) Trends Inorg. Chem., 3, p. 25
- Blesa, M.A., Morando, P.J., Regazzoni, A.E., (1994) Chemical Dissolution of Metal Oxides, , CRC Press, Boca Raton, Fla
- Borghi, E.B., Ali, S.P., Morando, P.J., Blesa, M.A., Cleaning of stainless steel surfaces and oxide dissolution by malonic and oxalic acid (1995) J. Nuclear Mat., 229, p. 115
- Di Risio, C., Marqués, R.O., (1985) J. Radioanal. Nucl. Chem. Lett., 94, p. 191
- Di Risio, C., Marqués, R.O., (1991) An. Asoc. Quim. Argent., 79, p. 83
- Dos Santos Afonso, M., Morando, P.J., Blesa, M.A., Banwart, S., Stumm, W., (1990) J. Colloid Interface Sci., 138, p. 74
- Dos Santos Afonso, M., DiRisio, C.D., Roitberg, A., Marqués, R.O., Blesa, M.A., (1990) Int. J. Radiat. Appl. Instrum. Part C. Radiat. Phys. Chem., 36, p. 457
- Regazzoni, A.E., Urrutia, G.A., Blesa, M.A., Maroto, A.J.G., (1981) J. Inorg. Nucl. Chem., 43, p. 1489
Citas:
---------- APA ----------
Dos Santos Afonso, M., Di Risio, C.D., Zysmilich, M., Marqués, R.O. & Blesa, M.A. (1996) . A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation. Radiation Physics and Chemistry, 48(6), 715-718.http://dx.doi.org/10.1016/S0969-806X(97)81358-8
---------- CHICAGO ----------
Dos Santos Afonso, M., Di Risio, C.D., Zysmilich, M., Marqués, R.O., Blesa, M.A. "A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation" . Radiation Physics and Chemistry 48, no. 6 (1996) : 715-718.http://dx.doi.org/10.1016/S0969-806X(97)81358-8
---------- MLA ----------
Dos Santos Afonso, M., Di Risio, C.D., Zysmilich, M., Marqués, R.O., Blesa, M.A. "A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation" . Radiation Physics and Chemistry, vol. 48, no. 6, 1996, pp. 715-718.http://dx.doi.org/10.1016/S0969-806X(97)81358-8
---------- VANCOUVER ----------
Dos Santos Afonso, M., Di Risio, C.D., Zysmilich, M., Marqués, R.O., Blesa, M.A. A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation. RADIAT. PHYS. CHEM. 1996;48(6):715-718.http://dx.doi.org/10.1016/S0969-806X(97)81358-8
