Home Technology Investigation of Microstructure and Chemical Stability in Composites of NiAl Reinforced by Alumina-Silica Fibers
Article
Licensed
Unlicensed Requires Authentication

Investigation of Microstructure and Chemical Stability in Composites of NiAl Reinforced by Alumina-Silica Fibers

  • Günter Gottstein EMAIL logo and Weiping Hu EMAIL logo
Published/Copyright: January 13, 2022
Become an author with De Gruyter Brill
Submit Manuscript Author Information
International Journal of Materials Research
From the journal International Journal of Materials Research Volume 92 Issue 10

Abstract

Interface structure and chemical stability in composites of NiAl reinforced with alumina silica fibers (Sumitomo) were investigated by means of TEM, XEDS, EELS and electron diffraction. The composite specimens were fabricated by diffusion bonding in vacuum at 1300 ~ 1450 °C/ 5 ~ 15MPa/2h. The experimental results showed no Ni diffusion from the NiAl matrix into the fiber to occur during diffusion bonding. However, the fiber underwent complex thermodynamic processes depending on hot-pressing temperatures. They involved intrinsic chemical reactions between the fiber components to produce mullite and reduce silica, as well as extrinsic reactions between free oxygen and NiAl at the interface to generate α-Al2O3. The experimental results are discussed.

Abstract

Grenzflächenstruktur und chemische Stabilität von Aluminiumoxid-Siliziumoxid-faserverstärkten NiAl-Verbundwerk-stoffen wurden mittels TEM, XEDS, EELS und Elektronenbeugung untersucht. Die Verbundwerkstoffproben wurden durch Diffusionsschweißen im Vakuum mit den Parametern 1300 ~ 1450 °C/5 ~ 15 MPa/2 h hergestellt. Die experimentellen Ergebnisse belegten, dass keine Ni-Diffusion von der Matrix in die Faser beim Diffusionsschweißen stattgefunden hatte. Allerdings waren komplizierte temperaturabhängige thermodynamische Vorgänge in der Faser abgelaufen. Dazu gehörten intrinsische chemische Reaktionen zwischen den Faserkomponenten mit dem Reaktionsprodukt Mullit und die Reduktion des Siliziumoxids, sowie eine extrinsische Reaktion zwischen freiem Sauerstoff und NiAl an der Grenzfläche mit dem Reaktionsprodukt α-Al2O3. Die experimentellen Ergebnisse werden diskutiert.

Keywords: NiAl; Alumina-silica fiber; Chemical stability; Interfacial reaction; Microstructure
Prof. Dr. G. Gottstein, Dr. W. Hu Institut für Metallkunde und Metallphysik Kopernikusstr. 14, D-52056 Aachen, Germany Fax : +49 241 8022 608, +49 241 8022 301

Dedicated to Professor Dr.-Ing. Dieter Neuschütz on the occasion of his 65th birthday

References

1 Nourbakhsh, S.; Sahin, O.; Rhee, W.H.; Margolin, H.: MetaU. Trans. A 22 (1991) 3059.10.1007/BF02650267Search in Google Scholar

2 Noebe, R.D.; Bowman, R.R.; Eldridge, J.I.: Mater. Res. Soc. Symp. Proc. 194 (1990) 323.10.1557/PROC-194-323Search in Google Scholar

3 Kumar, K.S.; Mannan, S.K.; Viswanadham, R.K.: Acta metall. mater. 40 (1992) 1201.10.1016/0956-7151(92)90419-FSearch in Google Scholar

4 Tewari, S.N.; Asthana, R.; Noebe, R.D.: Metall. Trans. A 24 (1993) 2119.10.1007/BF02666345Search in Google Scholar

5 Miller, D.P.; Lannutti, J.J.; Noebe, R.D.: J. Mater. Res 8 (1993) 2004.10.1557/JMR.1993.2004Search in Google Scholar

6 Miller, D.P.; Lannutti, J.J.; Noebe, R.D.: J. Mater. Res. 8 (1993) 2004.10.1007/BF00241017Search in Google Scholar

7 Nathan, M.; Ahearu, J.S.; Hellmann, J.R.: J. Mater. Sci. Lett 13 (1994) 1215.10.1007/BF00241017Search in Google Scholar

8 Moose, CA.; Koss, D.A.; Hellmann, J.R.: Mater. Res. Soc. Symp. Proc. 194 (1990) 293.10.1016/S1359-6454(97)00160-2Search in Google Scholar

9 Saqip, M.; Mehrotra, G.M.; Weiss, L; Beck, H.; Lipsitt, H.A.: Scripta metall. mater. 24 (1990) 1889.10.1016/0956-716X(90)90046-JSearch in Google Scholar

10 Whittenberger, J.D.; Viswanadham, R.K.; Mannan, S.K.; Sprissler, B.: J. Mater. Sci. 25 (1990) 35.10.1007/BF00544181Search in Google Scholar

11 Wang, L.; Arsenault, R.: J. MetaU. Trans. A 22 (1991) 301310.1007/BF02650261Search in Google Scholar

12 Xing, Z.P.; Guo, J.Y.; An, G.Y.; Hu, Z.Q.: Scripta metaU. mater. 31 (1994) 1141.10.1016/0956-716X(94)90565-7Search in Google Scholar

13 Parvizi-Majidi, A., in: R.W. Cahn, P. Haasen, E.J. Kramer (eds), Materials Science and Technology: A Comprehensive Treatment, VCH, Weinheim 13 (1993) 60.Search in Google Scholar

14 Hu, W; Wunderlich, W.; Gottstein, G.: Acta mater. 44 (1996) 2383.10.1016/1359-6454(95)00337-1Search in Google Scholar

15 Hu, W.; Gottstein, G.: To be published (2001).Search in Google Scholar

16 Trumble, K.P.; Rühle, M.: Acta metall. mater. 39 (1991) 1915.10.1016/0956-7151(91)90160-3Search in Google Scholar

17 Chou, T.C.; Nieh, T.G.: J. Am. Ceram. Soc. 74 (1991) 2270.10.1111/j.1151-2916.1991.tb08295.xSearch in Google Scholar
Received: 2001-04-10
Published Online: 2022-01-13

© 2001 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Dieter Neuschütz 65 Years
  4. Aufsätze/Articles
  5. Combinatorial Methods for Advanced Materials Research & Development
  6. Chemische Gasphasenabscheidung von SiC und SiC + Si auf Kohlenstoffsubstraten und ihre chemische Oberflächenmodifizierung
  7. Fabrication and Characterization of Hydrogen Absorption LaNi5 Alloy Films Sputtered on Nickel Substrate
  8. On the Importance of Gas Phase Chemistry in Two CVD Systems: Deposition of Silicon and Diamond
  9. Thermodynamic Prediction of Metastable Coating Structures in PVD Processes
  10. Setting Kinetic Controls for Complex Equilibrium Calculations
  11. Modeling of the Thermochemical Properties of Multicomponent Oxide Melts
  12. Subsolidus Phase Relationships of the β–Sialon Solid Solution in the Oxygen-Rich Part of the Nd–Si–Al–O–N System
  13. Investigation of Microstructure and Chemical Stability in Composites of NiAl Reinforced by Alumina-Silica Fibers
  14. Gesicherte Interpretationen der FTIR-Reflexionsspektren von SiC–CVD-Schichten durch Spektrensimulation
  15. Characterization of Cohesion, Adhesion and Creep-Properties of Dynamically Loaded Coatings through the Impact Tester
  16. Peculiarities of Diffusion Controlled Phase Formation in the Al–Co System
  17. Mitteilungen/Notifications
  18. Personen
  19. Bücher/Books
  20. Tagungen
https://doi.org/10.3139/ijmr-2001-0213
Keywords for this article
NiAl; Alumina-silica fiber; Chemical stability; Interfacial reaction; Microstructure

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Dieter Neuschütz 65 Years
  4. Aufsätze/Articles
  5. Combinatorial Methods for Advanced Materials Research & Development
  6. Chemische Gasphasenabscheidung von SiC und SiC + Si auf Kohlenstoffsubstraten und ihre chemische Oberflächenmodifizierung
  7. Fabrication and Characterization of Hydrogen Absorption LaNi5 Alloy Films Sputtered on Nickel Substrate
  8. On the Importance of Gas Phase Chemistry in Two CVD Systems: Deposition of Silicon and Diamond
  9. Thermodynamic Prediction of Metastable Coating Structures in PVD Processes
  10. Setting Kinetic Controls for Complex Equilibrium Calculations
  11. Modeling of the Thermochemical Properties of Multicomponent Oxide Melts
  12. Subsolidus Phase Relationships of the β–Sialon Solid Solution in the Oxygen-Rich Part of the Nd–Si–Al–O–N System
  13. Investigation of Microstructure and Chemical Stability in Composites of NiAl Reinforced by Alumina-Silica Fibers
  14. Gesicherte Interpretationen der FTIR-Reflexionsspektren von SiC–CVD-Schichten durch Spektrensimulation
  15. Characterization of Cohesion, Adhesion and Creep-Properties of Dynamically Loaded Coatings through the Impact Tester
  16. Peculiarities of Diffusion Controlled Phase Formation in the Al–Co System
  17. Mitteilungen/Notifications
  18. Personen
  19. Bücher/Books
  20. Tagungen
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 31.12.2025 from https://www.degruyterbrill.com/document/doi/10.3139/ijmr-2001-0213/html
Scroll to top button