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EMPA

Jobs und Ausbildung

An unseren drei Standorten Dübendorf, St. Gallen und Thun beschäftigen wir rund 1000 Mitarbeitende aus mehr als 50 Ländern. Unsere Mitarbeitenden schätzen das dynamische, innovative Forschungsumfeld an der Empa mit multikultureller Atmosphäre und internationaler Ausstrahlung. Ausserdem profitieren sie von unserem weitverzweigten Netzwerk in Industrie und Forschung. Die Empa ist auch eine erstklassige Adresse, wenn es um Ausbildung geht; wir bilden jedes Jahr rund 200 Studierende und PraktikantInnen aus, dazu kommen mehr als 40 Lernende in verschiedensten Berufen sowie an die 200 Doktorierende. Die Empa – auf jeden Fall eine gute Wahl für Arbeit und Ausbildung.

EMPA

Überlandstrasse 129
8600Dübendorf

30.09.2020

EMPA

PostDoc position on Strain-Enhanced Ionic-Conductivity in Oxide Membranes for Energy Applications

  • EMPA

  • 8600Dübendorf

  • 30.09.2020

  • Vollzeitstelle

Project goal: Investigate the strain-enhanced ion-conductivity in elastically and plastically deformed single and polycrystalline oxide membranes and thin films. This work opens new avenues for the design of Solid Oxide Fuel Cell (SOFC) in miniaturized systems for energy storage in mobile applications. Furthermore, an increased ionic conductivity in plastically deformed oxide thin films can also pave the way to optimized functional properties of other thin oxide film technologies, such as ferroelectricity, band gap tuning, resistive memory switching, and catalysis. Your tasks: We are looking for a highly motivated enthusiastic candidate to perform systematic experimental investigations to derive the ionic conductivity in Y-doped ZrO2 (YSZ) and SrZrO3 thin films as function of the applied mechanical bending strain. The candidate will:fabricate epitaxial and polycrystalline thin films by PLD and magnetron sputtering, respectivelytransfer epitaxial films on thin membranes by etching a sacrificial interlayer in water.implement a 3-point bending setup for applying controlled mechanical strain levels on single-crystalline and polycrystalline oxide membranes from the elastic up to the plastic regime.characterize the effect of strain on the ionic conductivity in oxide membranes also in relation with e.g. the grain-size, texture and defect structure by using a combined analytical approach using Impedance and Raman spectroscopy, X-ray Diffraction (XRD), In-situ soft and hard X-ray Photoemission Spectroscopy (XPS/HAXPES) and Scanning Electron Microscopy (SEM).
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28.09.2020

EMPA

Postdoc on Soft X-ray Laser Microanalysis of CO2 Sorbent Materials

  • EMPA

  • 8600Dübendorf

  • 28.09.2020

  • Vollzeitstelle

Our Lab investigates fundamental and applied problems bridging between chemical innovation and industrial solutions. The core focus is the development and deployment of spectroscopy methods of enabling character for materials science.A very promising process to reduce greenhouse gas concentration in the atmosphere by direct air capture (DAC) relies on CO2 sorbents, such as amine-functionalized polymers, which are able to bind CO₂ from air, reversibly forming carbamates. The reversible uptake capacity and kinetics depends on the number of active sites in the material and the accessibility of them. Unfortunately, many concurrent, not fully understood, micro-chemical processes cause the amine/carbamate system to degrade, with as high as 40% loss of DAC efficiency.To investigate the amine degradation you will set up a unique soft X-ray laser coupled to gas chromatography mass spectrometry and microanalyze the chemical pathways of degradation. Laser desoption ionization coupled to high-resolution mass spectrometry offers the possibility to analyze pristine and "spent" sorbent materials in situ, with a spatial resolution of approx. 1 micron. Lateral and depth-resolved mappings of the organic compounds at given time-interval will permit to track the dynamics of the oxidative process. Your tasksOperate and validate a setup for soft X-ray laser delivery to a GC-Mass Spectrometer. Utilize complementary methods for the validations, such as Raman, GC-MS, HAXPES, synchrotron spectroscopy.Carry out spatially resolved micro-analysis on materials for the sorption of CO2.Coordinate and participate in industrial projects, Write peer-reviewed publications and promote the results at international conferences
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25.09.2020

EMPA

Postdoc position on "Development of SMA-fiber reinforced concrete and 3D printing of SMA prestressed concrete elements"

  • EMPA

  • 8600Dübendorf

  • 25.09.2020

  • Vollzeitstelle

Project description and tasks: The employed postdoc will work on two connected research projects. 1) Development of an eco-friendly ultra-high performance concrete volumetrically prestressed with SMA fibers (Eco-UHPC-VP),2) Prestressed shape memory alloy (SMA) reinforcement for 3D Concrete Printing (PSMA-3D). Concrete technology research will be carried out by one of our current postdocs, who is already involved in both projects. The structural research including Finite Element (FE) modeling, design of experiments, conducting structural experiments, writing publications- and possible supervision of junior researchers- will be the main tasks of the new postdoc. Within the Eco-UHPC-VP project, the goal is to study the volumetric prestressing of concrete by means of iron-based SMA (Fe-SMA) fibers uniformly distributed through the concrete volume. FE simulations will be used to model and better understand 1) the local prestress around a single fiber, 2) the crack initiation and propagation, and 3) the overall mechanical behavior of the developed Eco-UHPC-VP. FE models will be adapted and verified with the experimental results obtained within the project and will then be used for further parametric studies limiting the total costs of the experiments. Within the PSMA-3D project in a joint research study between Empa and ETH, we intend to investigate the feasibility of prestressed SMA reinforcement for 3D printed concrete elements. We plan to design and develop structurally optimized 3D printed concrete elements and their integrated reinforcement layout as well as strategies for its prestressing, analysis and optimization of the elements together with 1:1 prototyping and testing. In order to apply concrete extrusion at building scale, above mentioned reinforcement strategies are investigated. Empa is an interdisciplinary research institution for materials science and technology in the ETH domain. At Empa structural engineering research laboratory new materials and systems are developed (e.g. Fe-SMAs) for use in civil infrastructure. Empa is pioneer and a worldwide-recognized institute for research on Fe-SMA reinforcement. More than 40 scientists have worked at Empa in this field over the last 20 years. As a result, more than 100 papers have been published and highly cited by the society. So far 60 real application have been realized by re-fer AG. ETH Zurich is one of the world’s leading universities specialising in science and technology. The research-group Digital Building Technologies lead by Prof.Dr. Benjamin Dillenburger at Department of Architecture at ETH Zurich investigates large-scale additive manufacturing for construction and related computational design strategies. An interdisciplinary research team embedded in the National Competence Centre of Research in Digital Fabrication (NCCR DFAB) is developing a concrete extrusion process used in this research project.
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23.09.2020

EMPA

Scientist position in the physics of building materials, built environment and energy systems

  • EMPA

  • 8600Dübendorf

  • 23.09.2020

  • Vollzeitstelle

We primarily welcome applicants with past postdoctoral experience to be hired at scientist level; however, younger applicants with an interesting profile may also be considered for hiring at post-doctoral level. We are seeking a curious, creative, critical individual committed to scientific excellence and high ethical standard. The candidate has a background in physics, mechanical or civil engineering, or related fields, and blends theoretical knowledge, programming skills and physical intuition. The ideal candidate has worked in fields such as porous media science, fluid and continuum mechanics (including interfacial processes), thermodynamics, scientific computing, building physics, energy storage and conversion, physics and chemistry of membranes. She/he has acquired experience in dealing with complex physicochemical processes and in modeling phenomena over multiple scales (e.g. molecular scales, pore scale, continuum scale, building and regional scales). Experience in developing, acquiring and managing research projects is also desirable for candidates to be hired at scientist level. Possible research areas of interest include (but are not limited to): multiscale and multiphysics modeling of complex processes (including coupled heat and mass transfer, reactive transport, ad-/desorption); supermaterials (materials with enhanced physicochemical properties, including nano-porous materials and nanostructures); active building envelopes with tunable properties; energy production, conversion and storage; novel computational models for building physics; membrane and bioreactors; computational fluid dynamics.
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23.09.2020

EMPA

Scientist position in data-driven modeling and machine learning with application to building physics, built environment and energy systems

  • EMPA

  • 8600Dübendorf

  • 23.09.2020

  • Vollzeitstelle

We primarily welcome applicants with past postdoctoral experience to be hired at scientist level; however, younger applicants with an interesting profile may also be considered for hiring at post-doctoral level. We are seeking a curious, creative, critical individual committed to scientific excellence and high ethical standard. The candidate has a background in physics, applied mathematics, mechanical/civil engineering, computer science, or related fields, and blends theoretical knowledge, programming skills and physical intuition. The ideal candidate has worked in data science, machine learning and statistical learning, mastering the concepts behind the methods as well as the details of modern programming tools. She/he has acquired experience in analyzing, describing and interpreting experimental data. Previous knowledge of building, energy, or environmental related problems is an asset. Experience in developing, acquiring and managing research projects is also desirable for candidates to be hired at scientist level. Possible research areas of interest include (but are not limited to): developing ad-hoc solutions for construction, renovation and energy networks; devising diagnostic and managing tools to optimize building and network performance; developing next-generation simulation tools that integrate mechanistic and datadriven models; digitalization, smart monitoring and optimization of the information extracted from experimental data.
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