Squeeze Cast Aluminum and Magnesium Matrix Composites Reinforced with Short Alumina Fibers - Structure and Chemistry Characterization
* Jerzy Sobczak, * Natalia Sobczak, ** Dariusz Rudnik, Andrzej Wojciechowski, Krystyna Pietrzak * Instytut Odlewnictwa, ul. Zakopiańska 73, 30-418 Kraków ** Instytut Transportu Samochodowego, ul. Jagiellońska 80, 03-391 Warszawa
Annals 1 No. 2, 2001 pages 155-158
DOI:
keywords:
abstract The comparative structural and chemistry characterizations have been evaluated in different sections of Al and Mg matrix pistons locally reinforced with a short alumina-based fiber preform by squeeze infiltration technique (P = 200 MPa). The quantitative structural analysis coupled with optical microscopy, transmission electron microscopy and scanning electron microscopy were employed to study structural and dimensional stability of the porous reinforcing preform during composite manufacturing. The results are discussed in terms of different reactivity between metal matrix and ceramic reinforcement, ultimately causing structural and mechanical degradation of preform.