Method of incorporating a mark in CVD diamond

A method of incorporating a mark of origin, such as a brand mark, or fingerprint in a CVD single crystal diamond material, includes the steps of providing a diamond substrate, providing a source gas, dissociating the source gas thereby a...

DJ Twitchen，GA Scarsbrook，PM Martineau，... - US

COLOURED DIAMOND

A method of producing a single crystal CVD diamond of a desired colour which includes the steps of providing single crystal CVD diamond which is coloured and heat treating the diamond under conditions suitable to produce the desired colo...

DJ Twitchen，PM Martineau，GA Scarsbrook

Ultratough CVD single crystal diamond and three dimensional growth thereof

The invention relates to a single-crystal diamond grown by microwave plasma chemical vapor deposition that has a toughness of at least about 30 MPa m 1/2 . The invention also relates to a method of producing a single-crystal diamond with...

RJ Hemley，HK Mao，CS Yan - CN

Production of Single Crystal CVD Diamond at Rapid Growth Rate

In a method of producing diamonds by microwave plasma-assisted chemical vapor deposition which comprises providing a substrate and establishing a microwave plasma ball in an atmosphere comprising hydrogen, a carbon source and oxygen at a...

Chih-Shiue YAN，Ho-kwang MAO，Russell J. HEMLEY，... - US

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 vac...

TWITCHEN Daniel James，GEOGHEGAN Sarah Louise，PERKINS Neil - CA

ULTRATOUGH SINGLE CRYSTAL BORON-DOPED DIAMOND

The invention relates to a single crystal boron doped CVD diamond that has a toughness of at least about 22 MPa m1/2. The invention further relates to a method of manufacturing single crystal boron doped CVD diamond. The growth rate of t...

Russell J. Hemley，HK Mao，CS Yan，... - WO

ULTRATOUCH CVD SINGLE CRYSTAL DIAMOND AND THREE DIMENSIONAL GROWTH THEREOF

The invention relates to a single-crystal diamond grown by microwave plasma chemical vapor deposition that has a toughness of at least about 30 MPa m1/2. The invention also relates to a method of producing a single-crystal diamond with a...

HEMLEY RUSSELL J.，MAO HO-KWANG，YAN CHIH-SHIUE - EP