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Fractal Studies on Titanium-Silica Aerogels using SMARTer

Putra, Edy Giri Rahman and Ikram, A. and Bharoto, Bharoto and Santoso, E. and Fang, T. Chiar and Ibrahim, N. and Mohamed, A. Aziz and Ikram, Abarrul and Purwanto, Agus and Sutiarso, Sutiarso and Zulfia, Anne and Hendrana, Sunit and Nurachman, Zeily (2008) Fractal Studies on Titanium-Silica Aerogels using SMARTer. In: AIP Conference 2008.

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Abstract

Power‐law scattering approximation has been employed to reveal the fractal structures of solid‐state titanium‐silica aerogel samples. All small‐angle neutron scattering (SANS) measurements were performed using 36 meters SANS BATAN spectrometer (SMARTer) at the neutron scattering laboratory (NSL) in Serpong, Indonesia. The mass fractal dimension of titanium‐silica aerogels at low scattering vector q range increases from −1.4 to −1.92 with the decrease of acid concentrations during sol‐gel process. These results are attributed to the titanium‐silica aerogels that are growing to more polymeric and branched structures. At high scattering vector q range the Porod slope of −3.9 significantly down to −2.24 as the roughness of particle surfaces becomes higher. The cross over between these two regimes decreases from 0.4 to 0.16 nm−1 with the increase of acid concentrations indicating also that the titanium‐silica aerogels are growing.

Item Type: Conference or Workshop Item (Paper)
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Struktur dan Bahan Maju > Teknik Sintesis Bahan Maju
Divisions: Pusat Sains dan Teknologi Bahan Maju
Depositing User: EDITOR PSTBM BATAN
Date Deposited: 01 Dec 2018 11:50
Last Modified: 01 Dec 2018 11:50
URI: http://repo-nkm.batan.go.id/id/eprint/7217

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