Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Aleksander, Kostka"'
Autor:
Yao Xiao, Yujiao Li, Aleksander Kostka, Maik Rajkowski, Mike Schneider, Gunther Eggeler, Guillaume Laplanche
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 4762-4776 (2024)
A two-step processing route including cold working (primary hardening) followed by annealing-induced (secondary) hardening is proposed to strengthen single-phase face-centered cubic CrCoNi-based medium-entropy alloys (MEAs). Here, we investigate two
Externí odkaz:
https://doaj.org/article/d6da7159dbad46f686fa66fffff9fe8d
Autor:
Jonathan Jenderny, Nils Boysen, Jens Rubner, Frederik Zysk, Florian Preischel, Teresa de los Arcos, Varun Raj Damerla, Aleksander Kostka, Jonas Franke, Rainer Dahlmann, Thomas D. Kühne, Matthias Wessling, Peter Awakowicz, Anjana Devi
Publikováno v:
Advanced Materials Interfaces, Vol 11, Iss 28, Pp n/a-n/a (2024)
Abstract Vapor phase infiltration (VPI) has emerged as a promising tool for fabrication of novel hybrid materials. In the field of polymeric gas separation membranes, a beneficial impact on stability and membrane performance is known for several poly
Externí odkaz:
https://doaj.org/article/125e8bae06ee4d2093c4ed49f35752a4
Autor:
Elaheh Akbarnejad, Aleksander Kostka, Yujiao Li, Matthias Karl Klein, Kamen Kozhuharov, Georg Fritz, Samuel Kalt, Alfred Ludwig
Publikováno v:
Advanced Materials Interfaces, Vol 11, Iss 20, Pp n/a-n/a (2024)
Abstract Interactions at high temperatures between thin films and the Si substrate limit materials discovery using combinatorial processing platforms (CPPs). To overcome this, a diffusion and reaction barrier, SiO2, by thermal oxidation of Si tips is
Externí odkaz:
https://doaj.org/article/9eeffedb6c7344a294d2d0f3968df5d4
Sputter‐Deposited La–Co–Mn–O Nanocolumns as Stable Electrocatalyst for the Oxygen Evolution Reaction
Autor:
Tobias H. Piotrowiak, Olga A. Krysiak, Ellen Suhr, Jian Zhang, Rico Zehl, Aleksander Kostka, Wolfgang Schuhmann, Alfred Ludwig
Publikováno v:
Small Structures, Vol 5, Iss 5, Pp n/a-n/a (2024)
A thin‐film materials library (ML) of the La–Co–Mn–O system is fabricated by hot reactive combinatorial cosputter deposition and screened for its electrocatalytic activity for the oxygen evolution reaction. Within this ML, an area with superi
Externí odkaz:
https://doaj.org/article/a9c29728f3ce48a9a75b10472a647ca5
Autor:
Florian Preischel, David Zanders, Thomas Berning, Aleksander Kostka, Detlef Rogalla, Claudia Bock, Anjana Devi
Publikováno v:
Advanced Materials Interfaces, Vol 10, Iss 28, Pp n/a-n/a (2023)
Abstract HfO2 thin films are appealing for microelectronic applications such as high‐κ dielectric layers, memristors, and ferroelectric memory devices. To fulfill the different requirements of each application, the properties of the deposited mate
Externí odkaz:
https://doaj.org/article/8e34eec71ca64816bd217b2c652a10df
Autor:
Sebastian M.J. Beer, Diane Samelor, Alsayed Abdel Aal, Johannes Etzkorn, Detlef Rogalla, Asiya E. Turgambaeva, Jerome Esvan, Aleksander Kostka, Constantin Vahlas, Anjana Devi
Publikováno v:
Journal of Materials Research and Technology, Vol 13, Iss , Pp 1599-1614 (2021)
The direct liquid injection chemical vapor deposition (DLI-CVD) of uniform and dense zirconium oxide (ZrO2) thin films applicable as corrosion protection coatings (CPCs) is reported. We present the entire development chain from the rational choice an
Externí odkaz:
https://doaj.org/article/f47eed5ea43e4cff9136047721f1ab85
Autor:
Julian Hunfeld, Hannah Sommer, Jürgen Kiese, Hongcai Wang, Ahmadreza Riyahi khorasgani, Tong Li, Christoph Somsen, Aleksander Kostka, Guillaume Laplanche
Publikováno v:
Materials & Design, Vol 211, Iss , Pp 110174- (2021)
A new wrought CrCoNi-based medium-entropy superalloy (MESA) was designed by changing the composition of a commercial superalloy of type C-263, which is used for stationary components in gas turbines. ∼5 at.% Cr and 0.85 at.% Ti + Al were added at t
Externí odkaz:
https://doaj.org/article/ca583dd886804305846c975c3d33ab70
Autor:
Thomas Berning, Malte Becher, Jan-Lucas Wree, Julia Jagosz, Aleksander Kostka, Andreas Ostendorf, Anjana Devi, Claudia Bock
Publikováno v:
Materials Research Express, Vol 9, Iss 11, p 116401 (2022)
Transition metal dichalcogenides (TMDCs) such as tungsten disulfide (WS _2 ) are studied for advanced electronic and optical devices because of their unique and versatile electrical, optical and mechanical properties. For the use of TMDC films in nex
Externí odkaz:
https://doaj.org/article/09eea56191dc44eaabbdaa0e904443dc
Autor:
Alex Asabre, Janine Pfetzing-Micklich, Oleg Stryzhyboroda, Aleksander Kostka, Ulrike Hecht, Guillaume Laplanche
Publikováno v:
Data in Brief, Vol 27, Iss , Pp - (2019)
This brief paper contains raw data of X-ray diffraction (XRD) measurements, microstructural characterization, chemical compositions, and mechanical properties describing the influence of Al, Ti, and C on as-cast Al0.6CoCrFeNi compositionally complex
Externí odkaz:
https://doaj.org/article/8e529490946c4c0f928bc71e7d62c696
Autor:
Alan Savan, Timo Allermann, Xiao Wang, Dario Grochla, Lars Banko, Yordan Kalchev, Aleksander Kostka, Janine Pfetzing-Micklich, Alfred Ludwig
Publikováno v:
Materials, Vol 13, Iss 9, p 2113 (2020)
Multiple principal element alloys, also often referred to as compositionally complex alloys or high entropy alloys, present extreme challenges to characterize. They show a vast, multidimensional composition space that merits detailed investigation an
Externí odkaz:
https://doaj.org/article/8236dffa923444fe960c831013ca0185