公开(公告)号：EP2856774A2

公开(公告)日：2015-04-08

申请号：EP13724593.2

申请日：2013-05-23

Applicant: Element Six Technologies Limited

Inventor： LIGGINS, Stephanie ,  BRANDON, John, Robert ,  PERKINS, Neil ,  WORT, Christopher, John, Howard ,  INGLIS, Paul, Nicholas ,  MCCLYMONT, Mark, Robin

IPC: H04R7/12 ,  H04R31/00 ,  C23C16/27

CPC classification number: A44C17/007 ,  C23C16/01 ,  C23C16/27 ,  C23C16/274 ,  C23C16/458 ,  H04R7/127 ,  H04R31/003 ,  H04R2307/023 ,  Y10T428/21 ,  Y10T428/24355

Abstract: A free-standing non-planar polycrystalline CVD synthetic diamond component which comprises a nucleation face and a growth face, the nucleation face comprising smaller grains than the growth face, the nucleation face having a surface roughness R
a no more than 50 nm, wherein the free-standing non-planar polycrystalline CVD synthetic diamond component has a longest linear dimension when projected onto a plane of no less than 5 mm and is substantially crack free over at least a central region thereof, wherein the central region is at least 70% of a total area of the free-standing non-planar polycrystalline CVD synthetic diamond component, wherein the central region has no cracks which intersect both external major faces of the free-standing non-planar polycrystalline CVD synthetic diamond component and extend greater than 2 mm in length.

公开(公告)号：EP2446072B1

公开(公告)日：2018-02-21

申请号：EP10728650.2

申请日：2010-06-25

Applicant: Element Six Technologies Limited

Inventor： GEOGHEGAN, Sarah Louise ,  PERKINS, Neil ,  TWITCHEN, Daniel James

IPC: C30B29/04 ,  C30B31/20 ,  C30B33/02 ,  C30B25/02 ,  C30B25/10

CPC classification number: C30B29/04 ,  C30B25/02 ,  C30B25/10 ,  C30B31/20 ,  C30B33/02

Abstract: 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 [VT] and a path length L such that [VT] 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.

公开(公告)号：EP2856774B1

公开(公告)日：2016-11-30

申请号：EP13724593.2

申请日：2013-05-23

Applicant: Element Six Technologies Limited

Inventor： LIGGINS, Stephanie ,  BRANDON, John, Robert ,  PERKINS, Neil ,  WORT, Christopher, John, Howard ,  INGLIS, Paul, Nicholas ,  MCCLYMONT, Mark, Robin

IPC: H04R7/12 ,  H04R31/00 ,  C23C16/01 ,  C23C16/27 ,  C23C16/458

CPC classification number: A44C17/007 ,  C23C16/01 ,  C23C16/27 ,  C23C16/274 ,  C23C16/458 ,  H04R7/127 ,  H04R31/003 ,  H04R2307/023 ,  Y10T428/21 ,  Y10T428/24355

公开(公告)号：EP2931935A1

公开(公告)日：2015-10-21

申请号：EP13799087.5

申请日：2013-12-04

Applicant: Element Six Technologies Limited

Inventor： PICKLES, Charles Simon James ,  WORT, Christopher ,  BRANDON, John ,  PERKINS, Neil

IPC: C23C16/27 ,  C30B25/10 ,  C30B29/04

CPC classification number: C23C16/274 ,  C23C16/511 ,  C30B25/105 ,  C30B25/12 ,  C30B25/165 ,  C30B29/04

Abstract: A method of coating a non-refractory and/or non-planar substrate 2 with synthetic diamond material using a microwave plasma chemical vapour deposition (MWCVD) synthesis technique is described. The method details forming a composite substrate assembly comprising: a support substrate 2 with an upper surface 4 and one or more electrically conductive refractory guards 6 disposed over the upper surface 4 of the support substrate 2, extending to a height hg above the upper surface 4 of the support substrate 2; and one or more non-refractory and/or non-planar substrates 8 disposed over the upper surface 4 of the support substrate 2, wherein the height hs above the upper surface 4 of the support substrate 2, where the height hs and where the difference in height hg hs lies in the range of 0.2-10mm. The composite substrate assembly is located within a plasma chamber of the microwave plasma CVD reactor (Figure 5). The process gases are fed into the plasma chamber with microwave plasma where plasma is formed at a location over the composite substrate assembly thus growing synthetic diamond on the one or more non-refractory and/or non-planar substrates.

Abstract translation: 描述了使用微波等离子体化学气相沉积（MWCVD）合成技术用合成金刚石材料涂覆非耐火和/或非平面基板2的方法。 该方法详细地形成复合衬底组件，其包括：具有上表面4的支撑衬底2和设置在支撑衬底2的上表面4上方的一个或多个导电耐火护板6，延伸到上表面4上方的高度hg 的支撑基板2; 以及设置在支撑基板2的上表面4上方的一个或多个非耐火和/或非平面基板8，其中在支撑基板2的上表面4上方的高度hs，其中高度hs和差异 在高度hg hs在0.2-10mm的范围内。 复合衬底组件位于微波等离子体CVD反应器的等离子体室内（图5）。 工艺气体用微波等离子体送入等离子体室，等离子体形成在复合衬底组件上方的一个位置上，从而在一个或多个非耐火和/或非平面衬底上生长合成金刚石。

公开(公告)号：EP2790877A1

公开(公告)日：2014-10-22

申请号：EP12808320.1

申请日：2012-12-12

Applicant: Element Six Technologies Limited

Inventor： PERKINS, Neil

IPC: B24B53/12 ,  B24B53/047 ,  B24D18/00 ,  C23C16/27

CPC classification number: B24B53/047 ,  B24B53/12 ,  B24D18/00 ,  C23C16/27

Abstract: A method of dressing a wheel using a polycrystalline CVD synthetic diamond dresser, the method comprising: rotating the wheel; and contacting a working surface of the wheel with a working surface of the polycrystalline CVD synthetic diamond dresser, wherein the polycrystalline CVD synthetic diamond dresser is oriented such that a leading edge of the working surface of the polycrystalline CVD synthetic diamond dresser is formed of larger grains than a trailing edge of the working surface of the polycrystalline CVD synthetic diamond dresser.