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Yoshioka, S. (author), Nakao, W. (author)Simple methodorogy to evaluate availability of self-healing agent have been established from the investigation on the relationship between oxidation behavior of self-healing agent and self-healing phenomena. The consistency of the established methodology was discussed by comparison in the lower bound of the available temperature range of mullite...conference paper 2013
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Latsuzbaia, R. (author), Negro, E. (author), Koper, G.J.M. (author)Platinum nanoparticles, which are used as catalysts in Proton Exchange Membrane Fuel Cells (PEMFC), tend to degrade after long-term operation. We discriminate the following mechanisms of the degradation: poisoning, migration and coalescence, dissolution, and electrochemical Ostwald ripening. There are two ways to tackle this problem. The first...conference paper 2013
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Lafont, U. (author), Van Zeijl, H.W. (author), Van der Zwaag, S. (author)While conventional self healing materials focus on the restoration of mechanical properties, newer generations of self healing materials focus on the restoration of other functional (i.e. non-mechanical) properties. Thermal conductivity is an example of an important functional property of a Thermal Interface Material (TIM) for LEDs and...conference paper 2013
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Prajer, M. (author), Wu, X. (author), Garcia Espallargas, S.J. (author), Van der Zwaag, S. (author)Polymers reinforced with high performance fibres are successfully replacing metal alloys in lightweight aircraft structures. A critical factor in structural design is the resistance of a structure to progressive damage which develops during its service time. The brittle nature of matrix cracking is the main source of composite failure initiating...conference paper 2013
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Liu, Z. (author), Besseling, N.A.M. (author), Mendes, E. (author), Picken, S.J. (author)Polyborosiloxanes (PBSs) are viscoelastic, transparent, colourless, self-healable polymer matrices, synthesized by reacting linear polydimethylsiloxanes (PDMSs) with boric acid (BA) above 150°C. BA takes part not only in cleaving the PDMS chains, but also contributes boronic-acid like moieties to the cleaved chain ends, which provide...conference paper 2013
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Coope, T. (author), Bond, I. (author), Trask, R. (author), Wass, D. (author)High performance, damage tolerant fibre reinforced polymer (FRP) composite materials are currently required to demonstrate no propagation of any sub-surface structural micro-cracking when under service load, thereby encouraging overdesign and limiting the inherent lightweight nature of such a material. By incorporating selfhealing...conference paper 2013
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Otsuka, H. (author), Imato, K. (author), Kanehara, T. (author), Irie, A. (author), Ohishi, T. (author), Takahara, A. (author)Covalent bonds with the ability to reach an equilibrium state between combination and dissociation under certain conditions have been studied, and systematic method for controlling the structures of compounds and polymers based on these reversible covalent bonds has been spotlighted as dynamic covalent chemistry. In the present study,...conference paper 2013
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Krelani, V. (author), Ferrara, L. (author)The presence of cracks may significantly affect the life-cycle of structures, as a results of its influence on the designed structural response vs. persistent or even severe accidental load and exposure conditions, when requested. Repairing damaged concrete in existing structures needs important investments to recover the pristine level of...conference paper 2013
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Palmese, G.R. (author), Pratama, P.A. (author), Peterson, A.M. (author), Sharifi, M. (author)Abstract only.conference paper 2013
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Grande, A.M. (author), Castelnovo, L. (author), Quadrio, I. (author), Zaffaroni, S. (author), Di Landro, L. (author)Ethylene-co-methacrylic acid (EMAA) based ionomers have thermo-mechanical properties strongly dependent on neutralization level of acid groups. Research revealed also how these materials are able to heal after ballistic impacts. In order to better understand the role of neutralization level on the Self-Healing (SH) behaviour, mechanical and...conference paper 2013
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Hazelwood, T. (author), Jefferson, A.D. (author), Lark, R.J. (author)Research has been carried out with the aim of better understanding the relevant properties of materials to be used in a new self-healing cementitious composite material system. The system consists of shape memory polymer tendons embedded within a cementitious matrix, upon heat activation these tendons undergo a shrinkage process which closes any...conference paper 2013
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Patrick, J.F. (author), Hart, K.R. (author), Krull, B.P. (author), Moore, J.S. (author), Sottos, N.R. (author), White, S.R. (author)Abstract only.conference paper 2013
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Zhang, S. (author), Langelaan, G. (author), Schut, H. (author), Brück, E. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)Steels are among the most widely used construction materials as their mechanical properties can be tuned over a very wide range of desired combinations of strength formability and other properties. However, when exposed for long times to high temperatures steel components can exhibit premature and low-ductility creep fracture, which arises from...conference paper 2013
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Yabuki, A. (author), Sakai, M. (author)A self-healing corrosion protective coating was developed using TiO2 particles and casein as pH-sensitive organic agents that is also environmentally friendly materials. A film structured of TiO2 particles was formed on a substrate (magnesium alloy) by dip-coating followed by immersion in a casein solution. Casein was inserted and fixed in the...conference paper 2013
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Palin, D. (author), Wiktor, V. (author), Jonkers, H.M. (author)Marine concrete structures are exposed to one of the most hostile of natural environments. Many physical and chemical phenomena are usually interdependent and mutually reinforcing in the deterioration of marine exposed concrete: expansion and microcracking due to physical effects increases concrete permeability paving the way for harmful...conference paper 2013
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Van den Berg, O. (author), Van Damme, J. (author), Du Prez, F. (author)Abstract only.conference paper 2013
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Huang, X. (author), Geng, X. (author), Wen, G. (author), Song, G. (author), Zhou, Y. (author)Abstract only.conference paper 2013
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Koper, G.J.M. (author), Boekhoven, J. (author), Hendriksen, W.E. (author), Eelkema, R. (author), Van Esch, J.H. (author)Self-assembled systems formed of micelles or vesicles have frequently been discussed as model systems for self-healing materials because their structure is dictated by thermodynamics and hence they quickly restore upon perturbation. In this aspect, they mimic many natural systems such as biological cells. However, in contrast to most synthetic...conference paper 2013
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Brochu, A.B.W. (author), Evans, G.A. (author), Reichert, W.M. (author)One of the most broadly reported self-healing schemes is that pioneered by White and Sottos et al. in which a polymer matrix is co-embedded with a catalyst and microcapsules containing a reactive healing agent. Although this field has been steadily growing over the past 10 years, little discussion of extension into biomaterials has taken place...conference paper 2013
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Lucas, S.S. (author), Nellesen, A. (author), Von Tapavicza, M. (author)In the last decade, an increasing attention has been given to the development of repairing capabilities in materials, with an emphasis in specific strategies that can promote self-healing, with or without external triggers. Self-healing has opened several new possibilities, especially in applications where long-term reliability is demanded and...conference paper 2013