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(11)

EP 4 384 337 A1

(12)

(43) Date of publication: 19.06.2024 Bulletin 2024/25 (21) Application number: 22783363.9 (22) Date of filing: 10.08.2022

(51) International Patent Classification (IPC):  B22F 9/08(2006.01) C22B 5/04(2006.01) C22B 34/22(2006.01) C22B 9/22(2006.01) C22B 34/12(2006.01) C22B 34/24(2006.01) C22B 59/00(2006.01) B22F 9/20(2006.01) C22B 5/18(2006.01) C22C 1/04(2023.01) C22B 21/04(2006.01) C22B 34/14(2006.01) C22B 34/32(2006.01) (52) Cooperative Patent Classification (CPC): C22B 5/18; C22B 5/04; C22B 34/22; B22F 9/20; B22F 9/082; C22C 1/045; C22B 34/1277; C22B 34/14; C22B 34/24; C22B 34/32; C22B 21/04; C22B 59/00; C22B 9/228 (86) International application number: PCT/GB2022/052085 (87) International publication number: WO 2023/017265 (16.02.2023 Gazette 2023/07)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 11.08.2021 GB 202111557 (71) Applicants: University of Bradford Bradford, Yorkshire BD7 1DP (GB) Bradford Metallurgy Ltd Bradford Yorkshire BD7 1DP (GB)	(72) Inventors: VOLLANS, Adam Bradford, Yorkshire BD7 1DP (GB) HRUBANTOVA, Katerina Bradford, Yorkshire BD7 1DP (GB) PATEL, Rajnikant Bradford, Yorkshire BD7 1DP (GB) HODGETTS, Russell Bradford, Yorkshire BD7 1DP (GB) (74) Representative: HGF  HGF Limited 1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)