Issue 12, 2020

Tunable pore size in diopside glass-ceramics with silver nanoparticles

Abstract

Volume crystallization was achieved in diopside glasses by the introduction of silver into the glassy network. Subsequent thermal treatments lead to the formation of metallic silver nanoparticles within the glass. The latter particles trigger the formation of volume crystals. Furthermore, a porous microstructure due to the huge difference of the densities of crystalline and amorphous diopside was obtained. Two glass compositions with a combination of antimony and silver as well as antimony, tin, and silver were studied and very different pore sizes, homogeneously distributed over the sample volume, were obtained. The nucleation behavior was studied via differential scanning calorimetry. Microstructure analyses were performed via scanning and transmission electron microscopy. The porosity and the pore size distribution dependent on the composition and hence also dependent on the nucleation behavior were studied using three-dimensional X-ray microscopy.

Graphical abstract: Tunable pore size in diopside glass-ceramics with silver nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
06 Jan 2020
Accepted
12 Feb 2020
First published
20 Feb 2020

CrystEngComm, 2020,22, 2238-2246

Tunable pore size in diopside glass-ceramics with silver nanoparticles

C. Thieme, K. Thieme and T. Höche, CrystEngComm, 2020, 22, 2238 DOI: 10.1039/D0CE00019A

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