Detail publikace

Microstructural evolution and formation of extended voids in Ag-Cu metal-matrix composite during prolonged annealing

STRAKOŠOVÁ, A. DVORSKÝ, D. MOLNÁROVÁ, O. KOLÍBAL, M. DUCHOŇ, J. SVORA, P. PRŮŠA, F. LEJČEK, P.

Anglický název

Microstructural evolution and formation of extended voids in Ag-Cu metal-matrix composite during prolonged annealing

Typ

Článek WoS

Jazyk

en

Originální abstrakt

Prolonged annealing of Ag-Cu metastable metal-matrix composite produced by compaction of Cu@Ag core-shell powder, revealed dramatic transformations in its microstructure. Heat treatment resulted in pronounced changes in particle morphology, extended grain boundary diffusion, and the formation of surface pores at the Cu/Ag interface, as well as extended voids within the bulk material. These phenomena are interpreted as consequences of the reduction of surface, interface and grain boundary energy, and diffusion and wetting processes, including pore migration and coagulation. Based on experimental observations, a model has been developed that explains the growth and migration of the pores leading to the formation of extended voids. This study provides new insight into the mechanisms of microstructural evolution in metal-matrix composites when annealed at relatively high temperatures, and opens pathways for their targeted application in advanced technologies such as electronic contacts.

Klíčová slova anglicky

Metal-matrix composite, Ag-Cu, Annealing, Shape changes, Diffusion, Voids formation

Vydáno

2026-04-05

Nakladatel

Elsevier

Časopis

Journal of Alloys and Compounds

Ročník

1061

Číslo

1

Strany od–do

1–10

Počet stran

10

BIBTEX


@article{BUT201873,
  author="{} and  {} and  {} and Miroslav {Kolíbal} and  {} and  {} and  {} and  {}",
  title="Microstructural evolution and formation of extended voids in Ag-Cu metal-matrix composite during prolonged annealing",
  journal="Journal of Alloys and Compounds",
  year="2026",
  volume="1061",
  number="1",
  pages="1--10",
  doi="10.1016/j.jallcom.2026.187418",
  issn="0925-8388",
  url="https://www.sciencedirect.com/science/article/pii/S0925838826014866"
}