EP 2566995 A1 20130313 - PROCESS FOR PRODUCING A CRYSTALLINE SURFACE LAYER
Title (en)
PROCESS FOR PRODUCING A CRYSTALLINE SURFACE LAYER
Title (de)
VERFAHREN ZU HERSTELLUNG EINER KRISTALLINEN OBERFLÄCHENSCHICHT
Title (fr)
PROCÉDÉ D'ÉLABORATION D'UNE COUCHE SUPERFICIELLE CRISTALLINE
Publication
Application
Priority
- SE 1050446 A 20100504
- SE 2011050437 W 20110411
Abstract (en)
[origin: WO2011139206A1] A process for producing a crystalline surface layer consisting of Au2Bi, AuGa2, AuIn2 or AuTe2 is disclosed. The process comprises exposing a surface of gold to a liquid phase of Bi, Ga, In or Te at a predetermined temperature such that inter metallic crystals are formed, and removing any non-reacted Bi, Ga, In or Te from the surface. The process results in a substrate having a surface of coloured gold which gives a glittering appearance, and the substrate is thus suitable for jewellery applications.
IPC 8 full level
C23C 2/04 (2006.01); C01G 7/00 (2006.01); C22C 5/02 (2006.01); C23C 4/08 (2006.01); C23F 1/30 (2006.01); C25F 3/02 (2006.01)
CPC (source: EP SE US)
C01G 7/00 (2013.01 - EP); C01G 15/00 (2013.01 - EP); C22C 5/02 (2013.01 - EP SE); C23C 2/04 (2013.01 - EP SE); C23C 2/28 (2013.01 - EP SE US); C23C 2/29 (2022.08 - EP SE US); C23C 4/08 (2013.01 - SE); C23C 30/00 (2013.01 - EP); C01P 2004/03 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011139206 A1 20111110; EP 2566995 A1 20130313; EP 2566995 A4 20140219; SE 1050446 A1 20111105; SE 534817 C2 20120110
DOCDB simple family (application)
SE 2011050437 W 20110411; EP 11777643 A 20110411; SE 1050446 A 20100504