Relation between the Microheterogeneity of Lithium Silicate Glasses and the Rate of their Dissolution in Hydrofluoric Acid
The heterogeneous character of the structure of lithium silicate glasses containing up to 33% Li2O is well known. Studies of the dependence of electrical properties of lithium silicate glasses on composition have been reported [1–3], It has been shown that introduction of another alkali oxide or Al2O3 changes the conductivity of lithium silicate glasses in a manner suggesting a more uniform distribution of alkali cations in comparison with the original two-component lithium silicate glasses. We studied the dependence of the rate of dissolution of the same glasses in hydrofluoric acid on their composition. The literature contains only fragmentary data on the dissolution rates, in relation to studies of the photochemical process .
KeywordsDissolution Rate Hydrofluoric Acid Alkali Cation Lithium Disilicate Vitreous Silica
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