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Theses

Synthèse et caractérisation de carboxylates métalliques produits de traitement de conversion de surface

Abstract : This work is about synthesis and characterisation of metallic carboxylates, products of surface conversion treatment. These compounds are studied for the protection of metals against atmospheric or aqueous corrosion. Their crystallographic and thermal properties are studied here. The structures of zinc carboxylates with 7, 8, 9, and 10 carbon atoms have been resolved as those of magnesium, gadolinium and lead heptanoates. Thermal analysis has allowed to identify numerous transformations occurring before melting : they are structural transitions common in zinc carboxylates and crystal - liquid crystal found in lead carboxylates. Otherwise, other compounds stemming from the study of carboxylates coatings are also studied, some mixed compounds associating two different anions : the zinc hepta-decanoate and the zinc hydroxy-heptanoate.
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http://docnum.univ-lorraine.fr/prive/SCD_T_2002_0278_LACOUTURE_DI_MARTINO.pdf
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https://hal.univ-lorraine.fr/tel-01746799
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Submitted on : Thursday, March 29, 2018 - 10:45:04 AM
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Françoise Di Martino. Synthèse et caractérisation de carboxylates métalliques produits de traitement de conversion de surface. Autre [cond-mat.other]. Université Henri Poincaré - Nancy 1, 2002. Français. ⟨NNT : 2002NAN10278⟩. ⟨tel-01746799⟩

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