METHOD FOR MAKING FANCY PALE BLUE OR FANCY PALE BLUE/GREEN SINGLE CRYSTAL CVD DIAMOND AND PRODUCT OBTAINED

METHOD FOR MAKING FANCY PALE BLUE OR FANCY PALE BLUE/GREEN SINGLE CRYSTAL CVD DIAMOND AND PRODUCT OBTAINED

A METHOD OF MAKING FANCY PALE BLUE OR FANCY PALE BLUE/GREEN CVD DIAMOND MATERIAL IS DESCRIBED. THE METHOD COMPRISES IRRADIATING SINGLE CRYSTAL DIAMOND MATERIAL THAT HAS BEEN GROWN BY A CVD PROCESS WITH ELECTRONS TO INTRODUCE ISOLATED VACANCIES INTO THE DIAMOND MATERIAL, THE IRRADIATED DIAMOND MATERI...

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Bibliographische Detailangaben
Hauptverfasser: GEOGHEGAN, SARAH LOUISE, TWITCHEN, DANIEL JAMES, PERKINS, NEIL
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE
APPARATUS THEREFOR
CHEMISTRY
CRYSTAL GROWTH
METALLURGY
PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
REFINING BY ZONE-MELTING OF MATERIAL
SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
SINGLE-CRYSTAL-GROWTH
UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Zusammenfassung:A METHOD OF MAKING FANCY PALE BLUE OR FANCY PALE BLUE/GREEN CVD DIAMOND MATERIAL IS DESCRIBED. THE METHOD COMPRISES IRRADIATING SINGLE CRYSTAL DIAMOND MATERIAL THAT HAS BEEN GROWN BY A CVD PROCESS WITH ELECTRONS TO INTRODUCE ISOLATED VACANCIES INTO THE DIAMOND MATERIAL, THE IRRADIATED DIAMOND MATERIAL HAVING (OR AFTER A FURTHER POST-IRRADIATION TREATMENT HAVING) A TOTAL VACANCY CONCENTRATION [V?] AND A PATH LENGTH L SUCH THAT [V?] x L IS AT LEAST 0.072 PPM CM AND AT MOST 0.36 PPM CM, AND THE DIAMOND MATERIAL BECOMES FANCY PALE BLUE OR FANCY PALE BLUE/GREEN IN COLOUR. FANCY PALE BLUE DIAMONDS ARE ALSO DESCRIBED.