DOI: 10.1111/j.1151-2916.1995.tb08216.x. Phase Equilibria in the Ti‐AI‐O System at 945°C and Analysis of Ti/Al<sub>2</sub>O<sub>3</sub> Reactions

Phase Equilibria in the Ti‐AI‐O System at 945°C and Analysis of Ti/Al2O3 Reactions

10.1111/j.1151-2916.1995.tb08216.x

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

Phase relations in the Ti‐Al‐O system were evaluated experimentally at 945°C. The tie lines were established using equilibrated samples with phase compositions determined by electron probe microanalysis. The phase relations were in agreement with previous estimates but the phase fields of α‐Ti[O,Al] and Ti3Al[O] were significantly different. The Ti3Al[O] phase has a maximum solubility of 22 at. % O, corresponding to a nominal stoichiometry of Ti3AlO, whereas the α‐Ti[O,Al] phase, at a maximum O solubility of 33.33 at. %, has a negligible amount of Al in solution. The disagreement between these results and previous studies was attributed to the differences in experimental techniques for sample preparation and analysis. The reported layer sequences at the Ti/Al2O3 interface were evaluated based on the ternary section and the corresponding O activity diagram. The layered interfaces were found to be stable, with the evolution of the reaction products governed by the thickness of the initial Ti layer and the O partial pressure in the ambient.

Bibliography

Kelkar, G. P., & Carim, A. H. (1995). Phase Equilibria in the TiâAIâO System at 945Â°C and Analysis of Ti/Al2O3 Reactions. Journal of the American Ceramic Society, 78(3), 572â576. Portico.

Authors 2

Girish P. Kelkar (first)
Altaf H. Carim (additional)

References 19 Referenced 56

R. W.Messier Jr. Joining of Advanced Materials.Butterworth‐Heinemann Stoneham MA 1993.
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10.1007/BF02387808
{'key': 'e_1_2_1_8_2', 'volume-title': 'Evaluation of Reaction Products and Interfacial Layering in the Ti‐Cu‐Al‐O System', 'author': 'Kelkar G. P.', 'year': '1994'} / Evaluation of Reaction Products and Interfacial Layering in the Ti‐Cu‐Al‐O System by Kelkar G. P. (1994)
{'key': 'e_1_2_1_9_2', 'first-page': '221', 'volume-title': 'Phase Diagrams of Binary Titanium Alloys', 'author': 'Murray J. L.', 'year': '1987'} / Phase Diagrams of Binary Titanium Alloys by Murray J. L. (1987)
U. R.Kattner J.‐C.Lin andY. A.Chang “Thermodynamic Assessment and Calculation of the Ti‐Al System ”Met. Trans. A 23A 2081–2090(1992). (10.1007/BF02646001)
10.1007/BF02887157
{'key': 'e_1_2_1_12_2', 'first-page': '749', 'volume-title': 'Thermodynamics of Nuclear Materials', 'author': 'Komarek K. L.', 'year': '1962'} / Thermodynamics of Nuclear Materials by Komarek K. L. (1962)
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{'key': 'e_1_2_1_16_2', 'first-page': '1250', 'article-title': 'Conventions for Plotting the Diffusion Paths in Multiphase Ternary Diffusion Couples on the Isothermal Section of a Ternary Phase Diagram', 'volume': '227', 'author': 'Clark J. B.', 'year': '1963', 'journal-title': 'Trans. AIME'} / Trans. AIME / Conventions for Plotting the Diffusion Paths in Multiphase Ternary Diffusion Couples on the Isothermal Section of a Ternary Phase Diagram by Clark J. B. (1963)
S.Sambasivan “Thermochemistry of Ceramic‐Metal Reactions in Ti‐Si‐N and Ti‐Si‐C Systems at High Temperatures and Pressures”;Ph.D. Dissertation.Arizona State University Tempe AZ 1990.
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{'key': 'e_1_2_1_19_2', 'volume-title': 'Titanium', 'author': 'Kubaschewski O.', 'year': '1983'} / Titanium by Kubaschewski O. (1983)
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Dates

Type	When
Created	19 years, 11 months ago (Sept. 27, 2005, 4:17 a.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 3:24 p.m.)
Indexed	1 month ago (Aug. 2, 2025, 12:08 a.m.)
Issued	30 years, 6 months ago (March 1, 1995)
Published	30 years, 6 months ago (March 1, 1995)
Published Online	19 years, 11 months ago (Sept. 27, 2005)
Published Print	30 years, 6 months ago (March 1, 1995)

Funders 0

None

BibTeX

@article{Kelkar_1995, title={Phase Equilibria in the Ti‐AI‐O System at 945°C and Analysis of Ti/Al2O3 Reactions}, volume={78}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1995.tb08216.x}, DOI={10.1111/j.1151-2916.1995.tb08216.x}, number={3}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Kelkar, Girish P. and Carim, Altaf H.}, year={1995}, month=mar, pages={572–576} }

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