TY - JOUR U1 - Wissenschaftlicher Artikel A1 - Quadbeck, Peter A1 - Jehring, Ulrike A1 - Böhm, Hans-Dietrich A1 - Füssel, Alexander A1 - Standke, Gisela T1 - Manufacturing Process of Low-Contamination Titanium Foam as Implant Material for Cranioplasty Based on Replica Technique JF - Advanced Engineering Materials N2 - The article investigates the development of a manufacturing route for highly porous titanium foams suitable for craniofacial surgery applications, particularly in cranioplasties. The study focuses on the polyurethane replication method for foam production and emphasizes reducing residual gas content, as it significantly affects the mechanical properties and suitability for approval of the foams. Various factors such as starting materials, solvent debinding, heating schedules, and hydrogen atmosphere are analyzed for their impact on residual gas content. It is shown that significant reductions in residual gas content can only be achieved by reworking each step of the process. A combination of initial solvent debinding of the PU template with dimethyl sulphoxide, reduction of suspension additives, use of coarser Gd. 1 powders, and an integrated debinding and sintering process under partial hydrogen atmosphere achieves a significant reduction in residual gas content. This way, the potential for producing titanium foams that comply with relevant standards for craniofacial implants is demonstrated. KW - cellular metals KW - debinding KW - manufacturing process KW - sintering KW - titanium Y1 - 2023 SN - 1438-1656 (Print) SS - 1438-1656 (Print) SN - 1527-2648 (Online) SS - 1527-2648 (Online) U6 - https://doi.org/10.1002/adem.202301392 DO - https://doi.org/10.1002/adem.202301392 IS - Early View SP - 1 EP - 8 PB - Wiley-VCH GmbH ER -