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Graded cross-links for stronger nanomaterials / Nicola M. Pugno in Materials today, Vol. 13 N° 3 (Mars 2010) 

Public ISBD [article]  in Materials today > Vol. 13 N° 3 (Mars 2010) . - pp. 40–43 Titre : Graded cross-links for stronger nanomaterials Type de document : texte imprimé Auteurs : Nicola M. Pugno, Auteur Année de publication : 2010 Article en page(s) : pp. 40–43 Note générale : Ingénierie Langues : Anglais (eng) Mots-clés : Nanomaterials  Graphene  Nanotube  Cross-link  stiffness Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : Cross-links are nowadays recognized to play a key role in the overall mechanical strength of buckypapers, nanotube or graphene based materials; material scientists or chemists are thus developing new nanomaterials with denser and stronger cross-links in order to maximize their mechanical strength. However, in spite of some fascinating achievements of material science and chemistry today, we are evidently far from an optimal result; the reported mechanical strength of a buckypaper, for example, is comparable to that of a classical sheet of paper. In this concept article we try to solve the paradox showing that the cross-link stiffness, a parameter still ignored in the literature, governs (more than its strength) the overall mechanical strength. New strategies for the experimentalists, e.g. the use of graded cross-links, are consequently suggested. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110700328 [article] Graded cross-links for stronger nanomaterials [texte imprimé] / Nicola M. Pugno, Auteur . - 2010 . - pp. 40–43. Ingénierie Langues : Anglais (eng) in Materials today > Vol. 13 N° 3 (Mars 2010) . - pp. 40–43 Mots-clés : Nanomaterials  Graphene  Nanotube  Cross-link  stiffness Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : Cross-links are nowadays recognized to play a key role in the overall mechanical strength of buckypapers, nanotube or graphene based materials; material scientists or chemists are thus developing new nanomaterials with denser and stronger cross-links in order to maximize their mechanical strength. However, in spite of some fascinating achievements of material science and chemistry today, we are evidently far from an optimal result; the reported mechanical strength of a buckypaper, for example, is comparable to that of a classical sheet of paper. In this concept article we try to solve the paradox showing that the cross-link stiffness, a parameter still ignored in the literature, governs (more than its strength) the overall mechanical strength. New strategies for the experimentalists, e.g. the use of graded cross-links, are consequently suggested. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110700328