Time filter

Source Type

Agency: Cordis | Branch: FP7 | Program: BSG-SME | Phase: SME-2012-1 | Award Amount: 1.05M | Year: 2012

Due to their high CO2-emissions, the aeronautics industry intends to produce more efficient and environmentally friendly turbine engines using high-strength alloys. As a decisive part of the supply chain, the EU metal spinning industry is increasingly requested to form these challenging materials. To keep quality demands and to stay competitive against new manufacturers in BRIC and other countries, metal spinning companies, which are mostly SMEs, strive for developing new technologies for the production of improved turbine components. One opportunity to meet these challenges is applying laser assistance in order to increase process efficiency, as well as deformation-rate and/or -degree (\25%) while avoiding intermediate annealing steps and thus reducing overall production time and costs by 50%. Hence a consortium of 3 metal spinning SMEs, 2 outstanding RTD-performers with specialized knowledge in laser-assisted forming and materials characterization, and 1 machine tool maker from 4 EU countries will develop laser-assisted metal spinning for an efficient and flexible processing of challenging Ni- and Ti-alloys. EasyForm is built on 1) a design of an industrial applicable laser processing head which is capable of being integrated in conventional spinning machines, 2) machining strategies for laser-assisted metal spinning of aerospace components made of Ti- and Ni-alloys, and 3) a guideline for quality control of components manufactured by the new technology. Subsequently, project results are going to be verified by the manufacture of selected demonstration parts and to be benchmarked regarding technical and economic aspects against competitive technologies. Finally, staff of SMEs is qualified/trained by specific instruction material. Dedicated dissemination activities and IP management will ensure a successful implementation of results into industrial application. Due to retrofitting of own machinery SMEs expect an increased turnover of 15-25% and ROI within 2 yrs.

Agency: Cordis | Branch: H2020 | Program: IA | Phase: NMP-16-2015 | Award Amount: 9.76M | Year: 2016

According to the European Energy Storage Technology Development Roadmap towards 2030 (EASE/EERA) energy storage will be of the greatest importance for the European climate energy objectives. The Sintbat project aims at the development of a cheap energy efficient and effectively maintenance free lithium-ion based energy storage system offering in-service time of 20 to 25 years. Insights gained from advanced in-situ and in-operando analysis methods will be used for multi scale modelling targeting on the simulation of aging mechanisms for a reliable lifetime prediction and enhancement. In addition, the latest generation of anode materials based on silicon as well as a prelithiation process for lifetime enhancement will be implemented in the cell manufacturing process. The implementation of high energy materials combined with a low cost and environmental benign aqueous cathode manufacturing process will lead to remarkable cell costs reduction down to 130 per kWh. This will enable battery based storage system for an economic reasonable price of less than 400 per kWh (CAPEX) and will lower the OPEX down to less than 0.09 per stored kWh for the targeted in-service time of 20 to 25 years (10,000 cycles). The technical developments will be supported by the set-up of a relevant roadmap as well as a catalogue for good practice. To guarantee the highest possible impact for the European economy the Sinbat consortium installed an Industrial Advisory Board including various European battery material suppliers, cell manufacturer and end-users whereby the whole value added chain in this way is completed within the Sintbat project. This strong interaction of the Sintbat consortium with relevant stakeholders in the European energy economy will assure that battery based energy storage systems are becoming an economic self-sustaining technology.

Ding H.,University of California at Berkeley | Razumovskiy V.I.,Materials Center Leoben Forschung | Asta M.,University of California at Berkeley
Acta Materialia | Year: 2014

The temperature (T) dependent self-diffusion coefficients (D) in Fe and Co are calculated from first-principles, across the Curie temperature ( Tc), employing a density functional theory approach based on a recently developed spin-wave method for modeling the paramagnetic state. Calculated results for D(T) are shown to accurately reproduce measured values for T/Tc ranging from 0.7 to 1.1, including the anomaly in the Arrhenius plot for Fe near Tc. An analysis of calculated results in Mn, Fe and Co suggests that the magnitude of the effect of magnetic disorder on D is correlated with d band filling and the transition from "weak" to "strong" ferromagnetism. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Schutz D.,Christian Doppler Laboratory | Deluca M.,University of Leoben | Deluca M.,Materials Center Leoben Forschung | Krauss W.,Christian Doppler Laboratory | And 3 more authors.
Advanced Functional Materials | Year: 2012

Bismuth sodium titanate (BNT)-derived materials have seen a flurry of research interest in recent years because of the existence of extended strain under applied electric fields, surpassing that of lead zirconate titanate (PZT), the most commonly used piezoelectric. The underlying physical and chemical mechanisms responsible for such extraordinary strain levels in BNT are still poorly understood, as is the nature of the successive phase transitions. A comprehensive explanation is proposed here, combining the short-range chemical and structural sensitivity of in situ Raman spectroscopy (under an applied electric field and temperature) with macroscopic electrical measurements. The results presented clarify the causes for the extended strain, as well as the peculiar temperature-dependent properties encountered in this system. The underlying cause is determined to be mediated by the complex-like bonding of the octahedra at the center of the perovskite: a loss of hybridization of the 6s 2 bismuth lone pair interacting with the oxygen p-orbitals occurs, which triggers both the field-induced phase transition and the loss of macroscopic ferroelectric order at the depolarization temperature. Bismuth sodium titanate (BNT)-derived materials show extended strain under applied electric fields, surpassing that of lead zirconate titanate (PZT), which is the most commonly used piezoelectric. The mechanism of the extended strain is, however, poorly understood, in particular its structural and chemical origins. The results presented clarify the causes of the extended strain and the peculiar temperature-dependent properties encountered in this system. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Stechauner G.,Materials Center Leoben Forschung | Kozeschnik E.,Christian Doppler Laboratory
Calphad: Computer Coupling of Phase Diagrams and Thermochemistry | Year: 2014

The kinetics of self-diffusion along grain boundaries and dislocations (pipe diffusion) is analyzed in Al, α- and γ-Fe and Ni. The available experimental information is critically reviewed. The suggested values given in the present work are assessed with focus on consistency and applicability to thermo-kinetic simulation. The proposed data are evaluated between room temperature and the melting point. © 2014 Elsevier Ltd.

Discover hidden collaborations