- Tytuł:
- Bending strength and fracture investigations of Cu based composite materials strengthened with \delta-alumina fibres
- Autorzy:
-
Kaczmar, J. W.
Granat, K.
Naplocha, K.
Kurzawa, A.
Grodzka, E.
Samociuk, B. - Powiązania:
- https://bibliotekanauki.pl/articles/383012.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
metal matrix composite
copper
alumina fibre
squeeze casting
bending strength
kompozyt metalowy
miedź
włókno aluminiowe
prasowanie stopu
wytrzymałość na zginanie - Opis:
- Bending strength, thermal and electric conductivity and microstructure examinations of Cu based composite materials reinforced with Saffil alumina fibres are presented. Materials were produced by squeeze casting method applying the designed device and specially elaborated production parameters. Applying infiltration pressure of 90MPa and suitable temperature parameters provided manufacturing of copper based composite materials strengthened with Saffil alumina fibres characterized by the low rest porosity and good fibre-matrix interface. Three point bending tests at temperatures of 25, 100 and 300ºC were performed on specimens reinforced with 10, 15 and 20% of Saffil fibres. Introduced reinforcement effected on the relatively high bending strengths at elevated temperatures. In relation to unreinforced Cu casting strength of composite material Cu – 15vol.% Saffil fibres increase by about 25%, whereas at the highest applied test temperature of 300ºC the improvement was almost 100%. Fibres by strengthening of the copper matrix and by transferring loads from the matrix reduce its plastic deformation and hinder the micro-crack developed during bending tests. Decreasing of thermal and electrical conductivity of Cu after incorporating fibres in the matrix are relatively small and these properties can be acceptable for electric and thermal applications.
- Źródło:
-
Archives of Foundry Engineering; 2013, 13, 2; 59-63
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł