Time filter

Source Type

News Article | May 30, 2017
Site: news.europawire.eu

“The eRamp results have created the prerequisites for keeping the production of power electronics in Europe competitive,” said Dr. Oliver Pyper, Senior Manager of Research, Development and Innovation Programs at Infineon Technologies Dresden and the eRamp project coordinator. “Power electronics guarantee an ever more efficient generation, transmission, and use of electric energy. And it is in this area that eRamp has significantly expanded our expertise in Europe.” The research results were tested for practical viability directly in the semiconductor production environment. The research partners used existing pilot lines and comprehensive production expertise at five sites: In addition, Infineon, Osram, and Siemens worked together to construct testing equipment and demonstrators for the evaluation of a new chip embedding technology. The eRamp project will conclude on 31 May 2017. The “eRamp – Excellence in Speed and Reliability for More than More Technologies“ project was financially supported by the European funding initiative ENIAC Joint Undertaking, as well as by the German Federal Ministry of Education and Research, the largest national sponsor. Financial support also came from Austria, the Netherlands, Romania, Slovakia, and the UK. eRamp is part of European research series dedicated to the development of power electronics based on 300mm wafers. Other projects in this series include EPT300, EPPL and PowerBase. In the four projects, a total of roughly 100 project partners is working to strengthen Europe economically and ecologically through the use of power electronics. In 2016, other initiatives were launched to strengthen European microelectronics, among which the IoSense project. It is a sensor technology initiative that is part of the ECSEL Joint Undertaking. As with the eRamp project, it is led by Infineon Dresden. Power electronics comprises electronic components and the chips built into them, so-called power semiconductors. Power semiconductors help keep the loss of electrical energy as low as possible. They make sure that the greatest possible amount of energy generated by wind or sun is fed into the power grid and transmitted almost completely without loss over many thousands of kilometers from the generation site to the consumer. They then help minimize power consumption in a wide variety of applications, e.g. in household appliances, illumination technologies, servers and computers, in hybrid and electric drive systems for cars, commercial vehicles, construction and agricultural machines as well as in industrial energy technologies and production facilities. AMS AG (Unterpremstaetten), CISC Semiconductor GmbH (Klagenfurt, Austria), HSEB Dresden GmbH (Dresden), Infineon Technologies (Dresden, Regensburg, Munich, Villach, and Bucharest, Romania), JOANNEUM RESEARCH Forschungsgesellschaft GmbH (Graz), Intel (Villach), Materials Center Leoben Forschung GmbH (Leoben, Austria), NXP Semiconductors (Gratkorn, Austria and Eindhoven, Netherlands), Osram GmbH (Munich), Polymer Competence Center Leoben GmbH (Leoben), Robert Bosch GmbH (Stuttgart, Germany), SGS INSTITUT FRESENIUS (Taunusstein, Germany), Siemens AG (Berlin, Munich), SPTS Technologies Ltd (Newport, UK), Stichting IMEC Nederland (Eindhoven), SYSTEMA Systementwicklung Dipl.-Inf. Manfred Austen GmbH (Dresden), Slovak University of Technology (Bratislava, Slovakia), Technical University Dresden, Technical University Vienna (Austria), University of Innsbruck (Austria), and the West Saxon University of Applied Sciences, Zwickau (Germany).

Likozar B.,Polymer Competence Center Leoben | Likozar B.,University of Ljubljana
Soft Matter | Year: 2011

In order to achieve good morphological, mechanical, structural, and thermal properties of a polymer electrolyte, ionic-liquid-in-polymer electrolytes have been explored. It was found that 1-ethyl-3-methylimidazolium, 1-butyl-3-methylimidazolium, and 1-butyl-1-methylpyrrolidinium tetrafluoroborate (EMImBF 4, BMImBF 4, and BMPyBF 4), hexafluorophosphate (EMImPF 6, BMImPF 6, and BMPyPF 6), and bis(trifluoromethylsulfonyl)imide (EMImTFSI, BMImTFSI, and BMPyTFSI) in hydroxy-functionalized multi-walled carbon nanotubes (MWCNT-OH) reinforced hydrogenated poly(acrylonitrile-co-1,3-butadiene) (HNBR) produce homogeneous solids. HNBR/MWCNT-OH/ionic liquid solid electrolytes were prepared by melt compounding of the nanotubes in the elastomer, mixing with curing system, curing, and immersion in the ionic liquid. Cross-linked with 12.9 wt% of the curing system (per total composite weight prior to ionic liquid sorption), these HNBR-based electrolytes displayed elastomeric properties and high tensile strength (up to 24 MPa). HNBR/MWCNT-OH/ionic liquid composites had the elongation at break up to 378% (BMPyTFSI) at the room temperature and ionic liquid concentrations up to 18 wt% (BMImTFSI). Thermal analysis showed that the T g of HNBR/MWCNT-OH/ionic liquid systems decreased as a function of increasing ionic liquid content at the constant polymer content in a composite. © 2011 The Royal Society of Chemistry.

Agency: European Commission | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2016 | Award Amount: 3.58M | Year: 2016

The quality assurance in the photovoltaic industry is yet in its infancy, requiring both underpinning science and trained personnel to reduce costs of energy. An unmet industrial requirement is an accelerated, and operating environment specific, service life time and energy yield assessment. SOLAR-TRAIN will qualify ESRs in the field of PV durability as part of a highly innovative, multi-disciplinary project meeting industry requirements. The objective is to develop novel, validated models for the service life time and energy prediction of PV modules and systems. The elements to this puzzle are researched in the frame of 14 PhD projects with individual areas of focus, such as (a) climatic degradation factors, (b) system analytics, (c) material (polymer) parameters, (d) service life & energy models, (e) linking production to performance and (f) performance enhancement by improved O&M. Commercial and test samples will be produced and tested in the distributed measurement campaign during this project. They will be exposed to state-of-the-art and to-be-developed stress cycles to allow a validated link of degradation to stresses, production methods, materials and methods of deployment. Accelerated and lower cost test cycles for the assessment of innovative materials and module developments will be delivered. The project is integrated both in terms of research as well as training. This inter-sectoral approach provides excellent theoretical and technical background as well as immersion in different business sectors and career mentoring, allowing ESRs to build up a sustainable professional network across Europe. For a most effective cross-sectoral training, the projects beneficiaries and partners represent the entire value chain, from materials developers / manufacturers through to operators and insurance companies. SOLAR-TRAIN will deliver on the targets stated in Issue Paper No. 2 of the SET Plan to maintain and strengthen PV leadership in Europe.

Kelly A.M.,Polymer Competence Center Leoben | Wiesbrock F.,University of Graz
Macromolecular Rapid Communications | Year: 2012

Poly(2-oxazoline)-based networks currently receive great interest due to their versatile properties that can be tailor made by desktop-planned modifications. This feature summarizes strategies for the preparation of these networks, comprising the in situ cross-linking as well as polymer-analogous cross-linking routines such as (reversible) complex formation, physical processes, and covalent bond formation (involving reactions with olefinic species as well as with epoxides, isocyanates, aldehydes, acids, and their derivatives). Reflecting prominent application examples in the biomedic(in)al sector, poly(2-oxazoline)-co-polyester networks are described in a dedicated section. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Frank A.,Polymer Competence Center Leoben | Pinter G.,University of Leoben
Polymer Testing | Year: 2014

Several tests methods are available for the characterization of the slow crack growth (SCG) resistance of polyethylene (PE) for pipe applications. Unfortunately, due to the increase of the SCG resistance of modern PE pipe grades, these test methods are exceeding practical time frames so that new test methods for accelerated and reliable material ranking are required. The Cyclic CRB Test was proposed as a promising test method for a quick material ranking of PE pipe grades by their SCG resistance, even at ambient temperatures. In this, paper different studies about the Cyclic CRB Test are summarized. On the one hand, the results show the potential for a quick and reliable material ranking at ambient temperatures within only a couple of days, even for modern PE 100-RC grades. On the other hand, results of two Round Robin Tests will be discussed. The presented results demonstrate high reproducibility and reliability of the Cyclic CRB Test in terms of material ranking by SCG resistance. © 2013 Elsevier Ltd. All rights reserved.

Weber A.,Polymer Competence Center Leoben | Resch K.,University of Leoben
Energy Procedia | Year: 2012

In this paper, the effect of material composition on the overheating protection performance of thermotropic systems with fixed domains (TSFD) is studied. Several thermotropic layers were formulated by variation of both, matrix material and thermotropic additive. Refractometry was applied in order to obtain refractive index data as a function of temperature of all material constituents and to screen wether material combinations are promising to formulate or not. Investigations concerning optical properties, switching temperature and switching process were carried out applying UV/Vis/NIR spectrometry. Morphological analysis was conducted with a Scanning Electron Microscope (SEM). Several TSFD showed reasonable light-shielding efficiency. Nevertheless further optimization of scattering domain size and shape is necessary to improve the light shielding performance. © 2012 The Authors.

Weber A.,Polymer Competence Center Leoben | Resch K.,University of Leoben
Journal of Applied Polymer Science | Year: 2014

This article presents a systematic strategy for formulation and optimization of thermotropic layers for overheating protection purposes. Specifically, thermotropic systems with fixed domains (TSFD) which consist of a thermotropic additive finely dispersed in a matrix material are considered. Based on systematic material (component) preselection regarding thermoanalytical characteristics and refractive indices, numerous thermotropic layers were formulated. TSFD with thermoplastic matrix were produced by compounding and compression molding. TSFD with resin matrix were produced by UV curing. The thermotropic layers were analyzed as to solar optical properties, threshold temperature, switching process and residual transmittance in the opaque state applying UV/Vis/NIR spectrometry equipped with a heating stage. Best performing materials exhibited solar hemispheric transmittance in the range of 72.2-84.5% and between 59.6 and 83.7% in the clear and opaque state, respectively. Threshold temperatures between 45 and 75°C were realized. Refractive index difference between matrix and additive and solar hemispheric transmittance displayed a close correlation. Hence, refractometry was shown to be an appropriate tool for material preselection. Furthermore, investigations revealed a close correlation of thermal transitions of thermotropic additives recorded by differential scanning calorimetry and threshold temperatures of thermotropic layers formulated therewith. However, thermotropic layers formulated so far have to be optimized with respect to light-shielding performance for efficient overheating protection. © 2013 Wiley Periodicals, Inc.

Agency: European Commission | Branch: FP7 | Program: JTI-CS | Phase: JTI-CS-2012-1-GRC-06-006 | Award Amount: 199.97K | Year: 2012

With the future use of thermoplastic composite (TPC) helicopter parts, recycling, repairing and reuse of used composite parts become within reach. In order to recycle used parts of an assembly group the joints have to be detachable. Disacop will investigate a thermoplastic separation scenario that will allow disassembling the parts of a structure by fusion debonding for recycling. Due to the thermoplastic behavior of the TPC components, the fusion zone can be weakened by temperature. To ensure component separation at the joining interface between the components a special separation layer will be investigated if necessary. The separation is intended to be without degradation of the TPC parts. For economic and environmental reasons the heating will be limited to local heating of the joining zone. The possible joining and separation layer is intended to be used as a heating element as well. Based on the available demonstrators, Disacop will identify a method to locally apply heat and to debond the assemblies. An energy-efficient technology is induction heating. The approach is to perform first trials on available coupons and subcomponents from the industrial partners to understand the process effects on real joints. Then the technology will be fine-tuned based on the requirements coming from the industrial partners, first on coupon level. Subsequently, the technology will be scaled up to subcomponents/ validation articles and the demonstrators. To prove the environmental benefits of the Disacop separation method data for life cycle assessment will be collected, for economic assessment a cost analysis for evaluation has to be made.

Disclosed is an electrode comprising a polymeric material containing or being composed of subunits according to general formulae (I) and (II)_(1), R_(2), R_(3) and R_(4) each independently represent H, alkyl (preferably-CH_(3), -C_(2)H_(5)), alkoxy-(preferably -OCH_(3), -OC_(2)H_(5)), -halogen or -CN, Ar_(1) and Ar_(4) independently represent a bridging aryl group, Ar_(2) and Ar_(3) independently represent a non-bridging aryl group, and R_(5) is a bridging alkyl or aryl group. Further, a Lithium-ion battery and a supercapacitor with such an electrode and the use of said polymeric material as electrode active material in the electrode of a battery or in the electrode of a supercapacitor and/or as an electrode binder is disclosed.

The purpose of this work was to prepare nanocomposites by mixing multi-walled carbon nanotubes (MWCNT) with nitrile and hydrogenated nitrile elastomers (NBR and HNBR). Utilization of transmission electronic microscopy (TEM), scanning electron microscopy (SEM), and small- and wide-angle X-ray scattering techniques (SAXS and WAXS) for advanced morphology observation of conducting filler-reinforced nitrile and hydrogenated nitrile rubber composites is reported. Principal results were increases in hardness (maximally 97 Shore, type A), elastic modulus (maximally 981 MPa), tensile strength (maximally 27.7 MPa), elongation at break (maximally 216%), cross-link density (maximally 7.94 × 1028 m-3), density (maximally 1.16 g cm -3), and tear strength (11.2 kN m-1), which were clearly visible at particular acrylonitrile contents both for unhydrogenated and hydrogenated polymers due to enhanced distribution of carbon nanotubes (CNT) and their aggregated particles in the applied rubber matrix. Conclusion was that multi-walled carbon nanotubes improved the performance of nitrile and hydrogenated nitrile rubber nanocomposites prepared by melt compounding. © 2010 Elsevier B.V.

Loading Polymer Competence Center Leoben collaborators
Loading Polymer Competence Center Leoben collaborators