Direct measurement of surface forces between sapphire crystals in aqueous solutions
Data(s) |
01/06/1988
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Resumo |
Measurements are presented of the electrical double layer and van der Waals forces between the (0001) surfaces of two single-crystal sapphire platelets immersed in an aqueous solution of NaCl at pH values from 6.7 to 11. The results fit the standard Deryaguin-Landau-Verwey-Overbeek (DLVO) theory, with a Hamaker constant of 6.7 × 10−20 J. These are the first measurements made using the Israelachvili surface forces apparatus without mica as a substrate material, and they demonstrate the possibility of using this technique to explore the surface chemistry of a wider range of materials.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Materials Research Society |
Relação |
http://dro.deakin.edu.au/eserv/DU:30041456/horn-directmeasurement-1988.pdf http://dx.doi.org/10.1557/JMR.1988.0413 |
Direitos |
1988, Materials Research Society |
Palavras-Chave | #sapphire crystals #surface forces #aqueous solutions #direct measurement |
Tipo |
Journal Article |