US 12,297,557 B2
Method for forming diamond product
Joshua James Tully, Coventry (GB); Samuel James Cobb, Coventry (GB); Julie Victoria MacPherson, Coventry (GB); Mark Edward Newton, Coventry (GB); and Matthew Lee Markham, Didcot (GB)
Assigned to ELEMENT SIX TECHNOLOGIES LIMITED, Didcot (GB); and UNIVERSITY OF WARWICK, Coventry (GB)
Appl. No. 17/759,173
Filed by Element Six Technologies Limited, Didcot (GB); and University of Warwick, Coventry (GB)
PCT Filed Mar. 4, 2021, PCT No. PCT/EP2021/055513
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/176015, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 2003310 (GB), filed on Mar. 6, 2020.
Prior Publication US 2023/0053780 A1, Feb. 23, 2023
Int. Cl. C25F 3/12 (2006.01); C01B 32/25 (2017.01); C01B 32/28 (2017.01); C23C 14/06 (2006.01); C23C 14/48 (2006.01); C25F 3/14 (2006.01); C30B 29/04 (2006.01); C30B 33/10 (2006.01)
CPC C25F 3/12 (2013.01) [C01B 32/25 (2017.08); C01B 32/28 (2017.08); C23C 14/0605 (2013.01); C23C 14/48 (2013.01); C25F 3/14 (2013.01); C30B 29/04 (2013.01); C30B 33/10 (2013.01); C01P 2002/90 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for forming a diamond product comprising:
providing a diamond material;
forming a damage layer comprising sp2 bonded carbon, wherein a presence of the damage layer defines a first diamond layer above and in contact with the damage layer and a second diamond layer below and in contact with the damage layer; and
electrochemically etching the damage layer to separate therefrom the first layer, wherein the electrochemical etching is performed in a solution containing ions, the solution having an electrical conductivity of at least 500 μS cm−1, and wherein the ions are capable of forming radicals during electrolysis.