Concept
Habitus (minéralogie)
Publications associées (43)
Unique corrosion behavior of an archaeological Roman iron ring: Microchemical characterization and thermodynamic considerations
Stefano Mischler, Laura Brambilla
The corrosion mechanisms of a Roman iron bezel ring were investigated by in-depth characterization of its uncommon corrosion pattern and thermodynamic modelling. A silver foil and altered glass remnants were identified, covered with thick strata of magneti ...
2024Scalable Approaches to III-V Nanowires for Photodetection
III-V semiconductor nanowires have unique properties that make them ideal for advanced photodetectors on inexpensive substrates. For example, they exhibit enhanced or polarization-dependent light absorption, they can form complex heterostructures, and thei ...
EPFL2023Changing habits in the cycling subculture: the case of two bike workshops in France
How do habits change? Some mobility scholars describe habits as regularly evolving. Several psychologists, on the other hand, observe radical changes originating from disruptions in our environment. I show that these two perspectives can be integrated usin ...
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD2022Structure analysis of beta dicalcium silicate via scanning transmission electron microscope (STEM)
Franco Alberto Zunino Sommariva, Qiao Wang, Junying Zhao, Chaoqi Shi
Beta-dicalcium silicate (beta-C2S), one of the main phases in Portland cement clinker, offers some promising overviews regarding CO2 and energy savings potential compared to alite. Understanding the crystalline structure and reactive sites on beta-C2S surf ...
ELSEVIER SCI LTD2022Microfluidic study in a meter-long reactive path reveals how the medium’s structural heterogeneity shapes MICP-induced biocementation
Lyesse Laloui, Dimitrios Terzis, Ariadni Elmaloglou
Microbially induced calcium carbonate (CaCO3) precipitation (MICP) is one of the major sustainable alternatives to the artificial cementation of granular media. MICP consists of injecting the soil with bacterial- and calcium-rich solutions sequentially to ...
2022Facet Engineering for Stable, Efficient Perovskite Solar Cells
Facet engineering is an important strategy for tuning the physical, chemical, and electronic properties of a crystal surface, and it also provides an effective route to improve the device performance in many fields. Complex crystal structures with rough mo ...
AMER CHEMICAL SOC2022Crystallization kinetics of atomic crystals revealed by a single-shot and single-particle X-ray diffraction experiment
Christoph Bostedt, Alessandro Colombo, Giorgio Rossi
Crystallization is a fundamental natural phenomenon and the ubiquitous physical process in materials science for the design of new materials. So far, experimental observations of the structural dynamics in crystallization have been mostly restricted to slo ...
NATL ACAD SCIENCES2021Aggregate dissolution in different pore solutions
The occurrence of cracking due to alkali silica reaction (ASR) affects the service life of concrete structures. The dissolution of silica-containing minerals within aggregates causes the formation of ASR products, which fill macroscopic cracks and cause th ...
EPFL2021Raman spectroscopy and lattice dynamics calculations of tetragonally-structured single crystal zinc phosphide (Zn3P2) nanowires
Anna Fontcuberta i Morral, Elias Zsolt Stutz, Jean-Baptiste Leran, Mahdi Zamani, Simon Robert Escobar Steinvall, Rajrupa Paul, Mirjana Dimitrievska
Earth-abundant and low-cost semiconductors, such as zinc phosphide (Zn3P2), are promising candidates for the next generation photovoltaic applications. However, synthesis on commercially available substrates, which favors the formation of defects, and cont ...
2020What EBSD and TKD Tell Us about the Crystallography of the Martensitic B2-B19′ Transformation in NiTi Shape Memory Alloys
The complex and intricate microstructure of B19′ martensite in shape memory nickel titanium alloys is generally explained with the Phenomenological Theory of Martensitic Crystallography (PTMC). Over the last decade, we have developed an alternative approac ...
2020