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Thermo-mechanical properties prediction of Ni-reinforced Al$_2$O$_3$ composites using micro-mechanics based representative volume elements

Shahzamanian, M. M.; Akhtar, S. S. ; Arif, A. F. M.; Basirun, W. J.; Al-Athel, K. S.; Schneider, M. 1; Shakelly, N.; Hakeem, Abbas Saeed; Abubakar, Abba A.; Wu, P. D.
1 Institut für Technische Mechanik (ITM), Karlsruher Institut für Technologie (KIT)

Abstract:

For effective cutting tool inserts that absorb thermal shock at varying temperature gradients, improved thermal conductivity and toughness are required. In addition, parameters such as the coefficient of thermal expansion must be kept within a reasonable range. This work presents a novel material design framework based on a multi-scale modeling approach that proposes nickel (Ni)-reinforced alumina (Al$_2$O$_3$) composites to tailor the mechanical and thermal properties required for ceramic cutting tools by considering numerous composite parameters. The representative volume elements (RVEs) are generated using the DREAM.3D software program and the output is imported into a commercial finite element software ABAQUS. The RVEs which contain multiple Ni particles with varying porosity and volume fractions are used to predict the effective thermal and mechanical properties using the computational homogenization methods under appropriate boundary conditions (BCs). The RVE framework is validated by the sintering of Al$_2$O$_3$-Ni composites in various compositions. The predicted numerical results agree well with the measured thermal and structural properties. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000149046
Veröffentlicht am 27.07.2022
Originalveröffentlichung
DOI: 10.1038/s41598-022-14685-x
Scopus
Zitationen: 4
Web of Science
Zitationen: 4
Dimensions
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Mechanik (ITM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2022
Sprache Englisch
Identifikator ISSN: 2045-2322
KITopen-ID: 1000149046
Erschienen in Scientific Reports
Verlag Nature Research
Band 12
Seiten Art.-Nr.: 11076
Vorab online veröffentlicht am 30.06.2022
Nachgewiesen in Dimensions
Scopus
Web of Science
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