The 4TU research centre High-Tech Materials participated in Materials 2016, the trade fair and conference in Veldhoven, 20-21 April 2016. At this event professionals who are involved in studying, choosing, applying, processing and finishing materials, had the change to meet, to talk, to network, and to learn.
4TU.HTM was an exhibitor at stand #53 with the following materials:
- Flexible functional composites, demonstrated by dr. Jibran Khaliq (TU Delft, Faculty of Aerospace Engineering, Novel Aerospace Materials)
Dr. Jibran Khaliq works within the NovAM research group that focuses on Smart Materials. - Antifreeze proteins, demonstrated by PhD students Antonio Aloi, Romà Suris Valls, and dr. Ilja Voets (TU/e, Institute for Complex Molecular Systems)
Poster
From mechanism to material: how to block, shape and nucleate ice crystals
(Pdf file, 1,6 MB) by Antonio Aloi, Luuk L.C. Olijve, Anneloes S. Oude Vrielink, Romà Suris Valls, and Ilja K. Voets
Abstract
Controlling ice crystal growth is a grand scientific challenge with major technological ramifications. We take inspiration from natural cryoprotective biopolymers, so-called ice binding proteins (IBPs) to develop novel polymeric antifreeze agents for application in biomedicine and materials science. IBPs are produced in fish, insects, microorganisms and plants as an essential coping strategy to survive at subzero temperatures. We study how and why IBPs bind onto specific ice crystal planes using state-of-the-art physico-chemical experiments and its impact on the various functional roles of IBPs (freezing point depression, inhibition of recrystallization, crystal shaping, etc.) using a range of activity assays. We aim to achieve a solid mechanistic understanding of how IBPs work as a crucial first step towards essential fundamental insight for the knowledge-based design of potent synthetic ice crystal growth modifiers for de-icing and cryopreservation applications.
Keywords
ice binding proteins, ice recrystallization inhibition, ice shaping, antifreeze
Furthermore, there were speakers from the 4TU.HTM community. All presentations are available on the Materials 2016 website.
Wednesday 20 April 2016 (programme)
- Onderzoek naar multiaxiale vermoeiing met de hexapod
Ir. Reinier Bos (TU Delft, Maritime and Transport Technology, Ship and Offshore Structures, from the group of prof.dr.ir. Mirek Kaminski)
Presentation
Onderzoek naar multiaxiale vermoeiing met de hexapod (Pdf file, 2 MB)
Abstract
Om complexe maritieme en offshore constructies langer en effectiever te gebruiken dan de ontwerplevensduur van 20 jaar, is een accurate bepaling van vermoeiingschade cruciaal. In de maritieme en offshore industrie zijn de meeste ontwerpcriteria voor vermoeiing gebaseerd op uniaxiale belastingen met constante amplitude, terwijl echte belastingen multiaxiaal en variabel kunnen zijn. TU Delft onderzoekt in het 4D-Fatigue project op macro schaal gelaste verbindingen onder multiaxiale en niet proportionele belastingen. Voor deze testen is een uniek apparaat ontworpen – de Hexapod. Vervolgonderzoek is gepland op micro- en meso-schaal voor een fysisch begrip van multiaxiale belasting evenals het effect van een corrosieve omgeving.
- Acoustic metamaterials
dr.ir. Varvara Kouznetsova (Tu/e, Mechanical Engineering, Mechanics of Materials)
Presentation
Acoustic metamaterials (Pdf file, 2,2 MB)
Abstract
In recent years, significant progress has been achieved in the development of the so-called acoustic metamaterials, designed to attenuate wave propagation in certain frequency ranges, called band gaps. Depending on their working principle, these materials can be classified into either phononic crystals or locally resonant metamaterials. The latter is a less explored, but very promising class of materials, since it allows the manipulation of relatively large wavelengths. In this talk, first the main working principle of acoustic metamaterials will be reviewed, followed by the summary of the current state-of-the-art and the outlook for the future design and applications. - Elektrochemische technieken in corrosieonderzoek en -monitoring
dr.ir. Arjan Mol (TU Delft, Materials Science and Engineering)
Presentation
Elektrochemische technieken in corrosieonderzoek en -monotoring (Pdf file, 3,5 MB)
Abstract
De ontwikkeling van nieuwe corrosiewerende coatings en metaallegeringen valt of staat met de beschikbaarheid van robuuste analysemethoden. Met name lokale defecten en heterogeniteiten in coatings en metaalmicrostructuur domineren het corrosiegedrag van (gecoate) metalen. Deze lezing gaat in op recente ontwikkelingen op het gebied van lokale elektrochemische meetmethoden om de corrosie-eigenschappen van (gecoate) metalen te bemeten.
Verder worden betrouwbare levensduurvoorspellingen en het beheer en onderhoud van constructies in de praktijk bemoeilijkt door een gebrek aan accurate corrosievoorspellingsmodellen voor beschrijving van de corrosiedegradatie van (gecoate) metalen. De uitdagingen en recente ontwikkelingen op het gebied van corrosiemonitoring van constructies worden in deze lezing over het voetlicht gebracht. - Recycling - contribution to materials sustainability and circular economy
dr.Yongxiang Yang (TU Delft, Materials Science and Engineering)
Presentation
Materials recycling - contribution to materials sustainablity and circular economy (Pdf file, 3 MB)
Abstract
Recycling is playing a very important role in circular economy. Recycling is not new, however, we focused more on the economic values in the past and tend to ignore the total materials recovery as a whole. Less valuable materials and low concentrated critical metals are often neglected for recovery, due to the lack of mature and cost-effective technologies. Furthermore, the presence of hazardous materials in many complex products prevents a more cost-effective materials recycling. All these demand highly innovations and development for more robust, flexible and cost efficient recycling technologies in the future for a more resource efficient society.
Thursday 21 April 2016 (progamme)
- Nieuwe composieten voor contactsensoren en energy harvesting devices
prof.dr.ir. Sybrand van der Zwaag (TU Delft, Aerospace Engineering, Novel Aerospace Materials)
Abstract
In veel toepassingen is behoefte aan gevoelige contactsensoren welke makkelijk geïntegreerd kunnen worden in een elastische vervormende applicaties. De huidige materialen voor contactsensoren (PVDF en piezo keramiek) zijn om verschillende redenen niet geschikt voor dergelijke toepassingen. In de lezing wordt het concept van functionele composieten bestaande uit een matrix polymeer met daarin draadvormige agglomeraties van piezo keramische deeltjes gedemonstreerd. Door de spelen met de eigenschappen van het polymeer kunnen eigenschappen verkregen worden die tot voor kort voor onmogelijk gehouden werden. In de lezing wordt het principe uitgelegd en worden mogelijke nieuwe toepassingsgebieden geduid. - Liquid Phase Electron Microscopy for understanding structure formation in hierarchical and hybrid materials
dr. Joseph Patterson (TU/e, Department of Chemical Engineering and Chemistry)
Abstract
Liquid Phase Electron Microscopy (LP-EM) has already begun to revolutionize our understanding inorganic crystal formation and nanoparticle dynamics through direct observation in real time, with nanometre spatial resolution. Here, we discuss the potential for LP-EM to advance our understanding of structure formation in hierarchical and hybrid materials. We discuss the importance of electron beam interactions and particle confinement within the liquid cell and present recent examples of LP-EM to study the formation of metal-organic frameworks, self-assembled polymer micelle evolution and calcium carbonate nucleation within a polymer matrix. - Wafer-based and thin-film: all-silicon solar cells at PVMD group
dr. Olindo Isabella (TU Delft, Faculty Electrical Engineering, Mathematics and Computer Science, Department Electrical Sustainable Energy, Research Group Photovoltaic Materials and Devices)
Presentation
Electrically-aware approach for advanced light management in (thin) c-Si solar cell (Pdf file, 3,2 MB)
Abstract
Efficient solar cells reply on a delicate interplay between spectral utilization, materials processing and light management. These three aspects are very important also in silicon solar cells, as they represent the largest share in the photovoltaic market. Especially light management is instrumental for both wafer-based and thin-film silicon solar cells. For wafer-based silicon solar cells, nano- and micro-texturing towards zero front reflectance will be discussed and high efficiency interdigitated back contacted devices will be presented. For thin-film silicon solar cells, the full-wave modelling of (decoupled) texturing will be presented and high efficiency (plasmonic) single and multi-junction devices will be shown.
