摘要:
A coating or a self-sustaining body of cerium oxyfluoride of the formula CeO x F y , where the ranges for x and y are x = l.8-l.99 and y = 0.00l-0.2 is produced by a novel method. This novel method comprises the steps of producing a starting material comprising grains of a desired end composition of CeO x F y within the given range of x and y, comminuting the starting material to a particulate, and consolidating the particulate starting material into a shape or onto a substrate. The initial production of the starting material is carried out by electrodeposition of the cerium-oxyfluoride in a fused-salt bath such as in an aluminum electrowinning cell, followed by stripping of the deposit from the anode substrate and reconsolidation, or by direct sintering, comminuting of the sintered body and reconsolidation.
摘要:
This invention relates to a reinforced concrete structure of enhanced corrosion resistance. The invention structure finds particular utility in service in brackish or saline water. The reinforced concrete of the structure is, on its surface, in contact with a low resistivity grout. Anode elements are in contact with the grout, such as at the surface of the reinforced concrete or by partial or full embedment in the grout. Together with this combination, a high resistivity material is provided as a covering over the low resistivity grout and anode elements. The resulting structure is especially useful when in contact with seawater, and most particularly seawater subject to tidal action.
摘要:
Un revêtement pour surfaces métalliques comprend un alliage d'aluminium avec au moins un des éléments suivants, zinc, cadmium ou manganèse, le revêtement d'alliage étant appliqué sur la surface métallique par électrodéposition en utilisant un électrolyte non-aqueux. L'électrolyte comprend du toluène comme solvant pour les chlorures des composants de l'alliage. Le revêtement peut être utilisé par exemple comme protection contre la corrosion.