Self-healing metal oxides could protect against corrosion / David Chandler in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4641 (05/2018)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 208, N° 4641 (05/2018) . - p. 27-29 Titre : Self-healing metal oxides could protect against corrosion Type de document : texte imprimé Auteurs : David Chandler, Auteur Année de publication : 2018 Article en page(s) : p. 27-29 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alumine Anticorrosifs Anticorrosion Métaux -- Revêtements protecteurs Revêtement autoréparant Index. décimale : 667.9 Revêtements et enduits Résumé : Researchers at MIT have found that an ultra-thin layer of aluminium oxide, though solid, can flow like a liquid instead of cracking. A solid oxide protective coating for metals can, when applied in sufficiently thin layers, deform as if it were a liquid, filling any cracks and gaps as they form. The thin coating layer should be especially useful to prevent leakage of tiny molecules that can penetrate through most materials, such as hydrogen gas that could be used to power fuel-cell cars, or the radioactive tritium (a heavy form of hydrogen) that forms inside the cores of nuclear power plants. Most metals, with the notable exception of gold, tend to oxidise when exposed to air and water. This reaction, which produces rust on iron, tarnish on silver and verdigris on copper or brass, can weaken the metal over time and lead to cracks or structural failure. But there are three known elements that produce an oxide that can actually serve as a protective barrier to prevent any further oxidation: aluminium oxide, chromium oxide and silicon dioxide. Note de contenu : - Environmental transmission electron microscope used - Aluminium oxide studied - Figure : Reserachers have found that a solid oxide protective coating for metals can, when applied in sufficiently thin layers, deform as if it were a liquid, filling any cracks and gaps as they form En ligne : https://drive.google.com/file/d/1qGlYQnAOuZ6JqYLqtc61QLLLVQm9HIKR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30621 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
19929	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)