Documents in process

Metal additive manufacturing is a promising route for producing complex, highly customized embeddedstructures for nuclear fusion environments, such as breeding blankets and divertors. These applicationsrequire steels with high thermomechanical stability and resistance to irradiation, yet AM processing oftenleads to undesired microstructural heterogeneities, including the formation of metastable phases. [...]

Simplified Template Cross Sections (STXS) have been adopted by the LHC experiments as a common framework for Higgs measurements. Their purpose is to reduce the theoretical uncertainties that are directly folded into the measurements as much as possible, while at the same time allowing for the combination of the measurements between different decay channels as well as between experiments. [...]

High-pressure high-temperature synthesis in laser-heated diamond anvil cells provides a direct pathway tostabilize polymeric and oligomeric nitrogen units, often inaccessible under ambient conditions due to the stability of theN2 molecule. Here we report the high-pressure reactivity of antimony with molecular nitrogen, leading to the discoveryof two distinct binary nitrides [...]

The side channels that occur during percussion drilling in stainless steel with ultrafast lasers with linear or circular polarization were observed using high-speed X-ray imaging, capturing the dynamic process in real-time and thus providing primary insights into their formation dynamics. We identified two distinct phenomena directly linked to the formation of side channels: (1) deflection of the borehole tip and (2) melt-induced obstructions that alter the propagation of the laser radiation. [...]

The demand for metal alloys that can perform at extreme temperatures above1100 °C while remaining manufacturable has sparked renewed interest inprintable oxide dispersion strengthened (ODS) alloys. Recently, NASA devel-oped an ODS alloy designed for additive manufacturing, known as GRX-810,which has demonstrated exceptional tensile and creep performance at tem-peratures of 1093 °C and higher [...]

The modern way to understand symmetries of a quantum field theory is via its topological defects in various dimensions. In this contribution to the proceedings, we focus on line defects in 2dQFT and we point out that topological defects naturally embed into a larger class, namely, translation invariant defects. [...]

Achieving optimal mechanical properties, including hardness and fracture toughness, by controlling grain size is a fundamental and long-standing objective in the development of hard and superhard transition metal borides (TMBs) ceramics. It is expected that the mechanical performance of TMBs will be substantially enhanced in nano-crystalline ceramics. [...]