A
Alfred Ludwig
Researcher at Ruhr University Bochum
Publications - 321
Citations - 8926
Alfred Ludwig is an academic researcher from Ruhr University Bochum. The author has contributed to research in topics: Thin film & Sputter deposition. The author has an hindex of 38, co-authored 301 publications receiving 6699 citations. Previous affiliations of Alfred Ludwig include Center of Advanced European Studies and Research.
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Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir, and IrO2 thin film electrodes in acidic and alkaline electrolytes: A comparative study on activity and stability
Serhiy Cherevko,Simon Geiger,Olga Kasian,Nadiia Kulyk,Jan-Philipp Grote,Alan Savan,Buddha Ratna Shrestha,Sergiy Vasil´ović Merzlikin,Benjamin Breitbach,Alfred Ludwig,Karl Johann Jakob Mayrhofer +10 more
TL;DR: In this paper, the authors evaluated the stability and activity of iridium and ruthenium thin film electrodes in acidic and alkaline electrolytes using an electrochemical scanning flow cell (SFC) connected to an inductively coupled plasma mass spectrometer (ICP-MS).
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Combinatorial search of thermoelastic shape-memory alloys with extremely small hysteresis width
Jun Cui,Jun Cui,Yong S. Chu,O. Famodu,Yasubumi Furuya,Jason R. Hattrick-Simpers,Richard D. James,Alfred Ludwig,Sigurd Thienhaus,Manfred Wuttig,Zhiyong Zhang,Ichiro Takeuchi +11 more
TL;DR: A clear relationship between the hysteresis and the middle eigenvalue of the transformation stretch tensor as predicted by the theory was observed for the first time and a new composition region of titanium-rich SMAs is identified with potential for improved control of SMA properties.
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The stability number as a metric for electrocatalyst stability benchmarking
Simon Geiger,Olga Kasian,Marc Ledendecker,Enrico Pizzutilo,Andrea Maria Mingers,Wen Tian Fu,Oscar Diaz-Morales,Zhizhong Li,Tobias Oellers,L. Fruchter,Alfred Ludwig,Karl Johann Jakob Mayrhofer,Karl Johann Jakob Mayrhofer,Karl Johann Jakob Mayrhofer,Marc T. M. Koper,Serhiy Cherevko,Serhiy Cherevko +16 more
TL;DR: In this paper, the authors introduce a metric to explore the dissolution processes of various iridium-based oxides, defined as the ratio between the amounts of evolved oxygen and dissolved iridium.
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Identification of Quaternary Shape Memory Alloys with Near‐Zero Thermal Hysteresis and Unprecedented Functional Stability
Robert Zarnetta,Ryota Takahashi,Ryota Takahashi,Marcus L. Young,Alan Savan,Yasubumi Furuya,Sigurd Thienhaus,Burkhard Maaß,Mustafa Rahim,Jan Frenzel,Hayo Brunken,Yong S. Chu,Yong S. Chu,Vijay Srivastava,Richard D. James,Ichiro Takeuchi,Gunther Eggeler,Alfred Ludwig +17 more
TL;DR: In this article, the lattice parameters of quaternary shape memory alloys and the thermal hysteresis were tailored by using a thin-film composition-spread technique and high-throughput characterization methods.
Journal ArticleDOI
The 2019 materials by design roadmap
Kirstin Alberi,Marco Buongiorno Nardelli,Andriy Zakutayev,Lubos Mitas,Stefano Curtarolo,Stefano Curtarolo,Anubhav Jain,Marco Fornari,Nicola Marzari,Ichiro Takeuchi,Martin L. Green,Mercouri G. Kanatzidis,Michael F. Toney,Sergiy Butenko,Bryce Meredig,Stephan Lany,Ursula R. Kattner,Albert V. Davydov,Eric S. Toberer,Vladan Stevanović,Aron Walsh,Aron Walsh,Nam-Gyu Park,Alán Aspuru-Guzik,Daniel P. Tabor,Jenny Nelson,James Edward Murphy,Anant Achyut Setlur,John M. Gregoire,Hong Li,Ruijuan Xiao,Alfred Ludwig,Lane W. Martin,Lane W. Martin,Andrew M. Rappe,Su-Huai Wei,John D. Perkins +36 more
TL;DR: In this paper, the authors present an overview of the current state of computational materials prediction, synthesis and characterization approaches, materials design needs for various technologies, and future challenges and opportunities that must be addressed.