EP 1102876 A1 20010530 - METHOD FOR CONTACT DIFFUSION OF IMPURITIES INTO DIAMOND AND OTHER CRYSTALLINE STRUCTURES AND PRODUCTS
Title (en)
METHOD FOR CONTACT DIFFUSION OF IMPURITIES INTO DIAMOND AND OTHER CRYSTALLINE STRUCTURES AND PRODUCTS
Title (de)
VERFAHREN ZUR KONTAKTDIFFUSION VON DOTIERELEMENTEN IN DIAMANT OER ANDEREN KRISTALLINEN STRUKTUREN UND PRODUKTE
Title (fr)
PROCEDE DE DIFFUSION PAR CONTACT D'IMPURETES DANS UN DIAMANT ET AUTRES STRUCTURES CRISTALLINES ET PRODUITS OBTENUS
Publication
Application
Priority
- US 9913566 W 19990616
- US 8957498 P 19980617
Abstract (en)
[origin: WO9966109A1] A low free energy method for more rapidly diffusing an impurity into a diamond or other crystalline element in powdered or granular form (2), without degradation of the crystalline structure. The present method includes the steps of providing a mixture of the diamond or other crystalline element and the impurity in a solid phase; treating the mixture (3) to bring the impurity into substantially conforming contact with substantially all of the outer surface of the crystalline element; and heating the mixture (3) to a temperature between about 200 DEG C and about 2000 DEG C. As another aspect of the present invention, a diamond is disclosed having an impurity diffused into the crystalline structure thereof at a ratio of from about 0.1 part of the impurity per 1 million parts of the diamond to about 600 parts of the impurity per 1 million parts of the diamond.
IPC 1-7
IPC 8 full level
C30B 31/00 (2006.01); C30B 31/02 (2006.01)
CPC (source: EP)
C30B 29/04 (2013.01); C30B 31/00 (2013.01); C30B 31/02 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB LI SE
DOCDB simple family (publication)
WO 9966109 A1 19991223; AU 4687199 A 20000105; EP 1102876 A1 20010530; EP 1102876 A4 20030312
DOCDB simple family (application)
US 9913566 W 19990616; AU 4687199 A 19990616; EP 99930308 A 19990616