Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Článek WoS

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.

Anglický 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

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

Klíčová slova v angličtině

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

Autoři

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

Vydáno

05.04.2026

Nakladatel

Elsevier

Periodikum

Journal of Alloys and Compounds

Svazek

1061

Číslo

1

Stát

Švýcarská konfederace

Strany od

1

Strany do

10

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S0925838826014866

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"
}