Embedding quantum dots into porous matrices is a very beneficial approach for generating hybrid nanostructures with unique properties. In this contribution we explore strategies to dope nanoporous SiO 2 thin films made by atomic layer deposition and selective wet chemical etching with precise control…
Ion irradiation can cause burrowing of nanoparticles in substrates, strongly depending on the material properties and irradiation parameters. In this study, it is demonstrated that the sinking process can be accomplished with ion irradiation of cube‐shaped Ag nanoparticles on top of silicon; how ion…
Ziel der vorliegenden Arbeit war es, einen Beitrag zum Einfluss von Legierungszusammensetzung und -komplexität auf frühe Oxidationsstadien von 3d-Übergangsmetall-CCAs zu leisten. Hierfür wurden insgesamt 11 verschiedene Legierungen aus den zwei grundlegenden Modellsystemen Co-Cr-Fe-Mn-Ni-Si (Co-System)…
Understanding the mechanism of oxide layer growth on 316 L requires knowledge, e.g., about the reaction front position, oxide phase formation and diffusion paths of the elements involved. We gain essential information for the early stages of oxidation up to 600 ◦C, utilizing Mn as tracer in a novel experimental…
Non-contact evaluation of transformation temperatures via bend and free recovery tests requires precise optical evaluation of shape changes of NiTi components. A variety of experimental setups is documented in the literature, but the influence of the evaluation method on the transformation temperatures…
Abstract In this contribution, chemical, structural, and mechanical alterations in various types of femtosecond laser-generated surface structures, i.e., laser-induced periodic surface structures (LIPSS, ripples), Grooves, and Spikes on titanium alloy, are characterized by various surface analytical…
Here, we studied the crystallographic and superconducting properties of niobium thin films grown by pulsed laser deposition. Depending on laser fluence our samples showed a critical temperature of up to 8.4 K and critical current densities of 3.0 · 10 6 A/cm 2 at 4.2 K. X-ray diffraction measurements…
In der vorliegenden Arbeit sollten die Auswirkungen von Wärmebehandlungen kurzer Dauer (t ≤ 30min) bei verschiedenen Temperaturen auf die Af-Temperatur, die Umwandlungscharakteristik und die Dicke der erzeugten Oxidschichten im Zusammenhang mit deren Verhalten und Schädigung bei pseudoelastischer Verformung…