{"id":856,"date":"2017-10-12T00:00:00","date_gmt":"2017-10-12T00:00:00","guid":{"rendered":"https:\/\/amq-inc.com\/this-is-niobium\/"},"modified":"2017-10-12T00:00:00","modified_gmt":"2017-10-12T00:00:00","slug":"this-is-niobium","status":"publish","type":"post","link":"https:\/\/amq-inc.com\/en\/this-is-niobium\/","title":{"rendered":"This is niobium"},"content":{"rendered":"
\n

On dit du niobium qu\u2019il est consid\u00e9r\u00e9 comme un m\u00e9tal strat\u00e9gique, ou encore qu\u2019il est la force de l\u2019acier moderne. Pourquoi ?<\/p>\n

Le niobium est consid\u00e9r\u00e9 comme un m\u00e9tal strat\u00e9gique dans le sens o\u00f9 le fonctionnement de bon nombre d\u2019industries en d\u00e9pend, o\u00f9 il permet d\u2019att\u00e9nuer l\u2019empreinte environnementale d\u2019un certain nombre d\u2019acteurs et enfin, dans le sens o\u00f9 la production d\u00e9pend de tr\u00e8s peu de site sur la plan\u00e8te.<\/p>\n

Le niobium, lorsqu\u2019il est utilis\u00e9 comme agent d\u2019alliage avec l\u2019acier, le rend \u00e0 la fois plus l\u00e9ger et plus r\u00e9sistant, tout en ne c\u00e9dant pas \u00e0 la corrosion. Pas \u00e9tonnant qu\u2019il soit un composant essentiel des mat\u00e9riaux utilis\u00e9s par les industries de la construction et de l\u2019automobile principalement.<\/p>\n

Son exploitation est en constante augmentation notamment gr\u00e2ce aux pays du BRICS (Br\u00e9sil, Russie, Inde, Chine et Afrique du Sud) qui d\u00e9veloppent leurs infrastructures et dont le march\u00e9 automobile explose. Ce n\u2019est cependant pas les seules industries \u00e0 b\u00e9n\u00e9ficier des atouts majeurs du niobium : le domaine de la haute technologie m\u00e9dicale, par exemple, en a largement besoin dans la fabrication de mat\u00e9riel de pointe.<\/p>\n

UTILISATION<\/strong><\/p>\n

Le niobium est un composant de l\u2019acier inoxydable utile notamment \u00e0 la construction des r\u00e9acteurs nucl\u00e9aires. On l\u2019utilise aussi dans l\u2019industrie de l\u2019armement, notamment dans la construction de missiles.<\/p>\n

Le niobium all\u00e8ge le poids des voitures. Cela entra\u00eene une baisse de la consommation d\u2019essence. Pour 9 $CAD de niobium dans la construction d\u2019une voiture, on all\u00e8ge son poids de 100 kg et on augmente en cons\u00e9quence son efficacit\u00e9 \u00e9nerg\u00e9tique de l\u2019ordre de 5 %. En plus, gr\u00e2ce \u00e0 sa haute r\u00e9sistance, le niobium permet de construire des v\u00e9hicules plus s\u00e9curitaires.<\/p>\n

Plusieurs ponts sont construits avec de l\u2019acier contenant du niobium. Le\u00a0Viaduc de Millau<\/a>\u00a0en est un bon exemple. L’utilisation de ferroniobium pour la construction du tablier du pont a permis d’en r\u00e9duire l’\u00e9paisseur. On comprend donc que l\u2019ajout de niobium permet de diminuer la quantit\u00e9 globale d\u2019acier, et donc de gagner en l\u00e9g\u00e8ret\u00e9.<\/p>\n

Mentionnons la grande utilisation pour l\u2019industrie p\u00e9troli\u00e8re et gazi\u00e8re, car le niobium permet de construire des pipelines (\u00ab transports par canalisation \u00bb de mati\u00e8res gazeuses, liquides ou solides) plus fiable en \u00e9vitant la formation de fissures.<\/p>\n

L\u2019industrie spatiale l\u2019utilise dans la construction des fus\u00e9es et des satellites. La fus\u00e9e Apollo 11 a \u00e9t\u00e9 construite \u00e0 60 % avec de l\u2019acier au niobium.<\/p>\n

MINES AU QU\u00c9BEC<\/strong><\/p>\n

Les principales sources de niobium se trouvent au Canada, Qu\u00e9bec, et au Br\u00e9sil \u00e0 98 %. Les autres sources (2 %) se trouvent en Australie, au Gabon, en R\u00e9publique d\u00e9mocratique du Congo et au Malawi. Les r\u00e9serves mondiales de niobium sont estim\u00e9es \u00e0 2,7 millions de tonnes.<\/p>\n

Au Canada, c\u2019est la mine\u00a0Niobec<\/a>\u00a0(Magris Resources) qui exploite les gisements de niobium par le biais d\u2019une mine souterraine. Ce qui est d\u2019ailleurs unique au monde. Les gisements se trouvent au Saguenay-Lac-Saint-Jean, \u00e0 200 km au nord de la ville de Qu\u00e9bec. Huit \u00e0 10 % de la production mondiale de niobium provient de cette mine.<\/p>\n

FAITS INT\u00c9RESSANTS<\/strong><\/p>\n

Le niobium n\u2019a pas l\u2019air tr\u00e8s chic au regard de cette fiche, mais d\u00e9trompez-vous ! Peut-\u00eatre que ce m\u00e9tal qui ressemble \u00e0 du titane sur votre bague est en r\u00e9alit\u00e9 du niobium. En effet, l\u2019artisan joaillier aime \u00e0 l\u2019utiliser car tout comme l\u2019or, il se laisse forger \u00e0 froid et donne des r\u00e9sultats des plus surprenants. Faites des recherches dans Internet ; vous trouverez des images de bijoux fabriqu\u00e9s en partie avec du niobium.<\/p>\n<\/div>\n

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Notes<\/h4>\n

L\u2019information contenue dans cette fiche provient de sources publiques et v\u00e9rifiables.<\/em><\/p>\n<\/div>\n

\n
\n

R\u00e9f\u00e9rences<\/h4>\n

\u2022\u00a0NIOBEC<\/a><\/p>\n

\u2022\u00a0MERN<\/a><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

On dit du niobium qu\u2019il est consid\u00e9r\u00e9 comme un m\u00e9tal strat\u00e9gique, ou encore qu\u2019il est la force de l\u2019acier moderne. 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