ADVANCED MATERIALS & PROCESSES | JULY 2026 42 iTSSe TSS iTSSe TSS NEW INTERFACE FOR PEM ELECTROLYSIS BY THERMALLY SPRAYED BPP-PTL COATING SYSTEM K. Bobzin, H. Heinemann, M. Erck, and K. Radermacher In order to take climate action for carbon neutrality, green hydrogen should be implemented in all industrial sectors. The proton exchange membrane water electro- lyzer (PEMWE) allows sustainable hydrogen production if electrolyzer lifetime can be balanced with the production costs. In terms of electrolyzer effectiveness, ohmic losses from interfacial contact resistances between the cell components have to be reduced. In this study, a new two-step approach in interface modification of cell components is discussed. (Fig. 1) The Journal of Thermal Spray Technology (JTST), the official journal of the ASM Thermal Spray Society, publishes contributions on all aspects— fundamental and practical— of thermal spray science, including processes, feedstock manufacture, testing, and characterization. As the Fig. 1 — Schematic illustration of the PEMWE cell, anode: IR-catalyst, cathode: PT-catalyst. primary vehicle for thermal spray information transfer, its mission is to synergize the rapidly advancing thermal spray industry and related industries by presenting research and development efforts leading to advance- ments in implementable engineering applications of the technology. The highlighted papers below were hand- picked by Editor-in-Chief André McDonald. In addition to the print publication, JTST is available online through link. springer.com. TSS members receive free online access to JTST. For more information, visit asminternational.org/tss. A NOVEL PLASMA-SPRAYED THERMAL BARRIER COATING FOR INTERNAL COMBUSTION ENGINES AND ITS FUNDAMENTAL LIMITS ON PERFORMANCE Eric H. Jordan, Chen Jiang, Rishi Kumar, John Gandolfo, Brian Gainey, and Benjamin J. Lawler Attempts to improve fuel efficiency of internal combustion (IC) engines using thermal insulating coatings have been made for decades. The fundamental concept is to reduce heat loss and convert that heat into useful mechan- ical work. It is now recognized that for this concept to be effective the coatings must provide an increased wall temperature to limit convective heat transfer, but also cool rapidly to avoid increased pumping work that negates the efficiency advantages. Such coatings are known as swing coatings, characterized by a low thermal effusivity. Extensive engine testing showed that the Bi-LMO TBCs improved cold start emissions and the low-load fuel efficiency, but produced a fuel efficiency penalty at high loads, in aggregate negating the coating’s fuel efficiency advantages and likely true for all other similar coatings. (Fig. 2) Fig. 2 — Schematic of the multi-step solution precursor plasma spraying process. JTST HIGHLIGHTS TSS NEWS See page 50 for information on TSS Hall of Fame Nominations and the TSS Emerging Professional Membership Program.
RkJQdWJsaXNoZXIy MTYyMzk3NQ==