Investigation of microstructure and selected properties of Al2O3-Cu and Al2O3-Cu-Mo composites
Authors:
- Justyna Zygmuntowicz,
- Joanna Łoś,
- Bernard Kurowski,
- Paulina Piotrkiewicz,
- Waldemar Kaszuwara
Abstract
AbstractThe scope of work included the fabrication of ceramic-metal composites from the Al2O3-Cu and Al2O3-Cu-Mo and examining their microstructure and selected properties. The composites were fabricated by the slip casting method. The rheological behavior, microstructures, X-ray analysis, and mechanical properties were investigated. The rheological study demonstrated that all of the obtained slurries were non-Newtonian shear diluted fluids and stability on time. In both slurries, the flow limit is close to 0 Pa, which is very beneficial when casting the suspensions into molds. The X-ray analysis reveals Al2O3, Cu, and Mo phases in all specimens. No new phases were found in both types of composites after the sintering process. The results provided that the hardness for Al2O3-Cu-Mo composites was equal to 10.06 ± 0.49 GPa, while for Al2O3-Cu, it was equal to 6.81 ± 2.08 GPa. TheK1Cvalues measured, with the use of Niihara equation, for composites with and without the addition of Mo were equal to 6.13 ± 0.62 MPa m0.5and 6.04 ± 0.55 MPa m0.5, respectively. It has been established that the mean specific wear rates of Al2O3-Cu and Al2O3-Cu-Mo samples were 0.35 × 10–5 ± 0.02 mm3 N−1 m−1and 0.22 × 10–5 ± 0.04 mm3 N−1 m−1, respectively. It was found that molybdenum addition improved wear resistance properties of the composites.
- Record ID
- WUTdf8bda2869204771b4956cb5722d2641
- Author
- Journal series
- Advanced Composites and Hybrid Materials, ISSN 2522-0128, [2522-0136]
- Issue year
- 2021
- Vol
- 4
- Pages
- 212–222
- Publication size in sheets
- 0.50
- Keywords in English
- Composites; Slip casting; Mechanical properties; Scanning electron microscopy
- DOI
- DOI:10.1007/s42114-020-00188-8 Opening in a new tab
- URL
- https://link.springer.com/article/10.1007%2Fs42114-020-00188-8 Opening in a new tab
- Language
- (en) English
- License
- File
-
- File: 1
- Investigation of microstructure and selected properties of Al2O3-Cu and Al2O3-Cu-Mo composites, File Zygmuntowicz_et_al-2020-Advanced_Composites_and_Hybrid_Materials.pdf / 2 MB
- Zygmuntowicz_et_al-2020-Advanced_Composites_and_Hybrid_Materials.pdf
- publication date: 23-11-2020
- Investigation of microstructure and selected properties of Al2O3-Cu and Al2O3-Cu-Mo composites, File Zygmuntowicz_et_al-2020-Advanced_Composites_and_Hybrid_Materials.pdf / 2 MB
-
- Score (nominal)
- 20
- Score source
- journalList
- Score
- = 20.0, 03-05-2022, ArticleFromJournal
- Publication indicators
- = 0; = 2; = 2; : 2020 (2 years) = 5.693 - 2020 (5 years) =5.795
- Citation count
- 2
- Uniform Resource Identifier
- https://repo.pw.edu.pl/info/article/WUTdf8bda2869204771b4956cb5722d2641/
- URN
urn:pw-repo:WUTdf8bda2869204771b4956cb5722d2641
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.