Czasopismo | RUDY I METALE NIEŻELAZNE | Rocznik 2018 - zeszyt 11

TERMODYNAMICZNA ANALIZA CIEKŁYCH ROZTWORÓW Cu-O

10.15199/67.2018.11.2

MARIAN KUCHARSKI

nr katalogowy: 117237
10.15199/67.2018.11.2

Streszczenie

Artykuł prezentuje nowy sposób opisu właściwości termodynamicznych ciekłych roztworów Cu-O, który opiera się na przyjęciu stanu odniesienia dla tlenu rozpuszczonego w miedzi - roztworu nieskończenie rozcieńczonego (γ[O]=1 dla x[O]=0). Dla tak wybranego stanu odniesienia wyznaczono: 1. Stałą równowagi reakcji rozpuszczania się tlenu w ciekłej miedzi. 2. Energię swobodną reakcji rozpuszczania się tlenu w ciekłej miedzi. 3. Potencjał chemiczny tlenu w miedzi dla roztworu niekończenie rozcieńczonego. 4. Niezależny od temperatury współczynnik aktywności tlenu w ciekłej miedzi.

Abstract

This study presents a new method of thermodynamic properties description of liquid Cu-O solutions which is based on selection of infinite dilute solution as the reference state for oxygen dissolved in copper (γ[O]=1 for x[O]=0). For this reference state the following relationships were established: 1. The equilibrium constant for the reaction of oxygen dissolution in liquid copper 0,5O2(g)=[O]Cu - Eq.8. 2. The Gibbs energy of reaction of oxygen dissolution in liquid copper 0.5O2(g)=[O]Cu- Eq.9. 3. The chemical potential of the oxygen in infinite dilute solution (Eq. 11). 4. The activity coefficient of the oxygen dissolved in liquid copper (Eq. 13)..

Słowa kluczowe

Keywords

Bibliografia

[1] Aune Ragnhild, Patrik Fredriksson, Seshadri Seetharaman. 2003. "Solute interactions with dissolved oxygen in molten copper systems“. Yazawa International Symposium, Metallurgical and Mater ials Processing, Principles and Technologies, Volume I: Materials Processing Fundamentals and New Technologies, Edited By F. Kongoli, K.Itagaki, C. Yamauchi and H.Y Sohn TMS (The Minerals, Metals & Materials Society): 119-130.
[2] Austin Chang Y., K. Fitzner, Min-Xian Zhang. 1988. “The solubility of gases in liquid metals and alloys". Progress in Materials Science 32: 97-259.
[3] Belton G. R., E. S. Tankins. 1965. "The Thermodynamic Behaviour of Oxygen in Liquid Binary-Metallic Solvents - A Simple Solution Model“. Transactions of the Metallurgical Society of AIME 233: 1892-1898.
[4] El-Naggar M. M. A., N. A. D. Parlee. 1970. "The Free Energy of Solution of Oxygen in Liquid Copper by a Solid Electrolytic Cell Technique". Metallurgical Transactions 1: 2975-2977.
[5] Fischer Wilhelm Anton, Wilfried Ackermann. 1966. “Unmittelbare elektrochemische Ermittlung des Sauerstoffgehaltes von Metallschmelzen, Archiv für das Eisenhüttenwesen" 37 (1): 43-47.
[6] Fitzner Krzysztof, Zbigniew Moser. 1979. “Activity of oxygen in dilute liquid Cu-O alloys". Metals Technology 6 (7): 273-275.
[7] Freuhan R. J., F.D. Richardson. 1969. “The Activities of Oxygen in Liquid Copper and Its Alloys with Silver and Tin". Transaction of the Metallurgical Society of AIME 245 (5): 1721-1726.
[8] Frohberg Martin G., Fernando Puchi. 1980. “Die Messung der Gleichgewichts Sauerstoffpartialdrucke sauerstoffhaltiger Kupferschmelzen". Erzmetall 33: 264-270.
[9] Girardi D. J., C.A. Siebert. 1950. “Equilibrium in the Reaction of Carbon Dioxide with Liquid Copper from 1090°C to 1300°C". Journal of Metals Transaction AIME 188: 1168-1170.
[10] Hallstedt B., D. Risold, L.J. Gauckler. 1994. “Thermodynamic Assessment of the Copper-Oxygen System". Journal of Phase Equilibria 15 (5): 483-499.
[11] Jacob K. T., J. H. E. Jeffes. 1971. “Thermodynamics of oxygen in liquid copper, lead and copper-lead alloys". Transaction of the Institution of Mining and Metallurgy 80: C32-C41.
[12] Janke Dieter. 1978. “Elektrolytische Desoxydation von Kobalt-,- Nickel-, Kupfer- und Silberschmelzen". Zeitschrift für Metallkunde 69: 302-307.
[13] Kayahara Yoshiro, Katsutoshi Ono, Toshio Oishi, Joichiro Moriyama. 1981. "Thermodynamic Study on the liquid Cu-O System“. Transactions oft he Japan Institute of Metals 22 (7): 493-500.
[14] Kemori Nobumasa, Iwao Katayama ,Zensaku Kozuka. 1980. “Thermodynamic Study of Oxygen in Liquid Copper". Transaction of JIM 21: 276-284.
[15] Kosenko A. V., G.A. Emel’chenko. 2001. “Equilibrium Phase Relationships in the System Cu-O under High Oxygen Pressure". Journal of Phase Equilibria 22 (1): 12-19.
[16] Kulkarni A. D. 1973. “The Thermodynamic Studies of Liquid Copper Alloys by Electromotive Force Method". Metallurgical Transaction 4: 1713-1721.
[17] Moser Zbigniew, Krzysztof Fitzner. 1975. "Zastosowanie stałych elektrolitów do określenia własności termodynamicznych układu Cu-O". Rudy i Metale Nieżelazne 20 (11): 510-513.
[18] Moser Zbigniew, Krzysztof Fitzner. 1976. “EFM Measurements Involving Solid Electrolytes in the Cu-O System". Bulletin de L’Academie Polonaise des Sciences Série des sciences techniques XXIV (3):7-
[215]-12-
[220].
[20] Nanda Chitta R., Gordon H. Geiger. 1970. “On the Thermodynamics of Oxygen in Molten Copper, Cu-Sn, and Cu-Ag Alloys". Metallurgical Transactions 1: 1235-1243.
[21] Neumann J. P., T. Zhong, Y.A. Chang. 1984. "The Cu-O (Copper -Oxygen) System“. Bulletin of Alloy Phase Diagrams 5 (2): 136-140.
[22] Osterwald Jürg, Günter Reimann, Wolfgang Stichel. 1969. "Über die Sauerstoffaktivität in flüssigem Kupfer". Zeitschrift für Physikalische Chemie Neue Folge 66: 1-7.
[23] Pluschkell Wolfgang, Hans-Jürgen Engel.1965. “ Über eine elektrochemische Methode zur Bestimmung des Sauerstoffgehaltes in Kupferschmelzen“. Zeitschrift für Metallkunde 56: 450–452.
[24] Schmid Rainer. 1983. „A thermodynamic Analysis oft he Cu-O System with an Associated Model“. Metallurgical Transactions B 14B: 473–481.
[25] Schramm L., G. Behr, W. Löser, K. Wetzig. 2005. „Thermodynamic Reassessment of the Cu-O Phase Diagram“. Journal of Phase Equilibria and Diffusion 26: 605–612.
[26] Sew H. P., A. K. Biswas. 1973. “Thermodynamic properties of oxygen in liquid copper”. Australsian Institute of Mining and Metallurgy Proceedings 245: 39–45.
[27] Shishin Denis, Sergei A. Decterov. 2012. „Critical assessment and thermodynamic modeling oft he Cu-O and Cu-O-S systems“. CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry 38: 59–70.
[28] Staffansson Lars-Ingvar, Lars Bentell, Ingvar Svensson. 1974. “The Influence of Selenium on the Oxygen Activity in Liquid Copper”. Scandinavian Journal of Metallurgy 3: 153–157.
[29] Tankins E. S., J. F. Erthal, M. K. Thomas. 1965. “The Thermodynamic Properties of Dilute Solutions of Oxygen in the Liquid Binary Cu-Ni Alloys”. Journal of the Electrochemical Society. 112(1): 446–450.
[30] Taskinen P. 1981. “Liquidus equilibria and solution thermodynamics in copper-rich copper-nickel-oxygen alloys”. Acta Polytech. Scand. Chem. Incl. Metall. 145: 1–45.
[31] Taskinen Pekka. 1984. „Thermodynamics of Liquid Copper-oxygen Alloys at 1065-1450 oC“. Scandinavian Journal of Metallurgy 13: 75–82
[32] Thomas C. Wilder. 1966. “Direct Measurement of the Oxygen Content in Liquid Copper; the Activity of Oxygen in Dilute Liquid Cu-O Alloys”. Transaction of the Metallurgical Society of AIME 236 (7): 1035–1040.
[33] Thompson W. T., P. Tarassoff. 1971. “Determination of oxygen in copper with an emf probe”. Canadian Metallurgical Quarterly 10 (4): 315–321.
[34] Vázquez J. Alberto, Antonio Romero S., Mario A. Garcia, Samuel González, Jorge Araujo O. 2003. „Determination of oxidation of molten copper using an electrochemical cell“. Yazawa International Symposium, Metallurgical and Materials Processing, Principles and Technologies, Volume I: Materials Processing Fundamentals and New Technologies, Edited By F. Kongoli, K.Itagaki, C. Yamauchi and H.Y Sohn TMS (The Minerals, Metals & Materials Society): 187–196.
[35] Wolfgang Stichel. 1967. Eektrochemische Gleichgewichtsmessungen imSystem Kupfer-Silber-Sauerstoff, Doctor- Ingenieur Dissertation (Technischen Universität Berlin). Berlin D 83.

Jeśli masz wykupiony/przyznany dostęp - zaloguj się. Skorzystaj z naszych propozycji zakupu!

Publikacja


e-Publikacja (format pdf) - nr 117237 "TERMODYNAMICZNA ANALIZA C..." licencja: Osobista Produkt cyfrowy	10.00 zł

Zeszyt


RUDY I METALE NIEŻELAZNE - e-zeszyt (pdf) 2018-11 licencja: Osobista Produkt cyfrowy	32.00 zł

Zeszyt

2018-11

Twój Koszyk

Publikacja

Zeszyt

Zeszyt

Czasopisma