Global Patent Index - EP 0312294 A1

EP 0312294 A1 19890419 - Modification of aluminium-silicon alloys in metal matrix composites.

Title (en)

Modification of aluminium-silicon alloys in metal matrix composites.

Title (de)

Veredlung von Aluminium-Silicium-Legierungen in Verbundwerkstoffen mit Metallmatrix.

Title (fr)

Modification des alliages à base d'aluminium-silicium en matériaux composites à matrice métallique.

Publication

EP 0312294 A1 19890419 (EN)

Application

EP 88309487 A 19881011

Priority

CA 549282 A 19871014

Abstract (en)

A process is described for forming a composite cast article comprising an aluminum-silicon alloy matrix containing strontium as a modifier and a preform of bonded-together Al2O3 fibres incorporated in the matrix, in which the preform is infiltrated under pressure by a melt of the alloy and the composite article thus formed is allowed to solidify by cooling. According to the novel feature, by utilizing a specific amount of strontium as modifier in the range of about 0.5 to 1.0% by weight, it is possible to obtain a satisfactory modification of the alloy within the composite.

IPC 1-7

C22C 1/09; C22C 21/04

IPC 8 full level

B22D 19/14 (2006.01); C22C 21/04 (2006.01); C22C 47/00 (2006.01); C22C 47/06 (2006.01); C22C 47/08 (2006.01); C22C 47/12 (2006.01); C22C 49/08 (2006.01)

CPC (source: EP KR)

C22C 21/04 (2013.01 - EP); C22C 21/08 (2013.01 - KR); C22C 47/06 (2013.01 - EP); C22C 47/08 (2013.01 - EP); C22C 49/08 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

EP 0312294 A1 19890419; BR 8805292 A 19890530; JP H01195249 A 19890807; KR 890006841 A 19890616

DOCDB simple family (application)

EP 88309487 A 19881011; BR 8805292 A 19881013; JP 26035388 A 19881014; KR 880013467 A 19881013