indium amalgam surface


(PDF) Surface Characterization of Amalgam Made with Hg-In ...

The surface of the In-containing amalgam was rapidly covered with both indium and tin oxide films. Greater amounts of oxygen were found on the gamma 1 Ag-Hg matrix in the In-containing amalgam ...

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Amalgam - AZoM.com

Indium reduces creep and increases strength whereas palladium reduces corrosion and tarnish. Tarnishing is the loss of luster from a metal or alloy surface because of the formation of a surface coating. The alloy remains unchanged and the mechanical properties also remain the same. A sulfide layer formed on the surface causes amalgam to tarnish.

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surface. The indium containing amalgam Indiloy showed a rapid increase of indium. The tin content for fresh surfaces and aged surfaces of Indiloy increased and decreased, respectively. The copper content decreased in all amalgams with oxidation which was typically observed in the high copper amalgam …

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The electrochemical behaviour of indium amalgams in ...

The working electrode consisted of 1 at- % indium amalgam except for some experiments with 0- 1 at- % amalgam. A wide range of NaOH solutions was used, 10, 5, 2, 1, 0-5, 0-3, 0-2 and 0-1 M, those solutions more dilute than molar being made up to an ionic strength of unity with KN0, The solutions were deoxygenated with nitrogen and all ...

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Dental Amalgam

•Indium (In) –decreases surface tension •reduces amount of mercury necessary •reduces emitted mercury vapor –reduces creep and marginal breakdown –increases strength –must be used in admixed alloys –example •Indisperse (Indisperse Distributing Company) –5% indium Powell J Dent Res 1989

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PRODUCT DATA SHEET Liquid Metal - Indium Corporation

Like indium, gallium and gallium alloys have the ability to wet to many non-metallic surfaces such as glass and quartz. Gently rubbing the gallium alloy onto the surface may help induce wetting. Note: These alloys form a thin, dull-looking oxide skin that is easily dispersed with mild agitation. The oxide-free surfaces are bright and lustrous.

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Indium - Wikipedia

Indium is added to some dental amalgam alloys to decrease the surface tension of the mercury and allow for less mercury and easier amalgamation. Indium's high neutron-capture cross-section for thermal neutrons makes it suitable for use in control rods for nuclear reactors, typically in an alloy of 80% silver, 15% indium, and 5% cadmium.

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Surface analysis of dental amalgams by X-ray photoelectron ...

The surface composition of indium containing amalgam (Indiloy) showed a typical enrichment of indium up to 80 at% of the metallic element. The oxygen content in fresh surfaces was approximately 30–40 at% regardless of the type of amalgam, while the oxygen contents increased up to around 60 at% after aging.

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Liquid Alloys | Products | Indium Corporation

These alloys can wet to surfaces such as glass and polymers. Gallium also forms an amalgam with most common metals; however, it does not dissolve refractory metals, which have very high melting points. Liquid gallium rapidly forms a skin of oxidized metal on its surface and this effect is being utilized in many liquid metal technologies.

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Surface analysis of dental amalgams by X-ray photoelectron ...

Objectives: It is important to characterize the surface of dental amalgam in order to understand the process of mercury release from amalgam restorations in the oral cavity. The mercury evaporation occurs not only from the newly made restoration but also from the set material. Methods: The surfaces of four different types of amalgams, which had been well set, were analyzed with X-ray ...

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The electrical double layer on indium amalgams in O.1 M ...

At a surface charge of −10 μC/cm 2, the capacity varies from 15 μF/cm 2 for mercury to 20 μF/cm 2 for 64% indium amalgam. At a surface charge of +10 μC/cm 2, the capacity of a 64% indium amalgam is approximately twice that of mercury. The potential drop across the diffuse double layer was calculated using the Gouy-Chapman theory.

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Surface characterization of amalgam made with Hg-In liquid ...

The surface of the In-containing amalgam was rapidly covered with both indium and tin oxide films. Greater amounts of oxygen were found on the gamma 1 Ag-Hg matrix in the In-containing amalgam than in the amalgam without indium. The rapid formation of the oxide film contributes to a reduction in the mercury release from the In-containing ...

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Surface analysis of dental amalgams by X-ray photoelectron ...

The surface of the In-containing amalgam was rapidly covered with both indium and tin oxide films. Greater amounts of oxygen were found on the gamma 1 Ag-Hg matrix in the In-containing amalgam ...

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DENTAL AMALGAM Historical Composition G.V. Black …

indium-containing alloys exhibited less margin breakdown but a darker appearance and a rougher surface than Dispersalloy.7 A five-year clinical study found that there was no significant difference in surface luster or texture between indium-containing alloys …

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