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Characterization of the intermediate-range order in new superionic conducting AgI-Ag 2 S-AgPO 3 glasses by neutron diffraction

Kartini, E. and Kennedy, S.J. and Itoh, K. and Fukunaga, T. and Suminta, S. and Kamiyama, T. (2002) Characterization of the intermediate-range order in new superionic conducting AgI-Ag 2 S-AgPO 3 glasses by neutron diffraction. Applied Physics A: Materials Science & Processing, 74. s1236-s1238. ISSN 0947-8396

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Abstract

Superionic conducting glasses are of considerable technological interest because of their use in batteries, sensors, and displays. We have investigated the new ternary systems AgI–Ag2S–AgPO3 where the ratio AgI:Ag2S is 1:1. The system (AgI)x(Ag2S)x(AgPO3)1-2x, for a AgI+Ag2S fraction less than 82 mol %, yields glasses. We have used a neutron-diffraction technique to obtain the total scattering structure factor S(Q) of this system at room temperature by using the HIT spectrometer at the High Energy Accelerator (KEK), Tsukuba, Japan. As for AgI–AgPO3 glasses, S(Q) shows a peak at anomalously low Q in the range from 0.6 to 0.9 Å-1. This peak is not observed in the corresponding glass Ag2S–AgPO3 or pure AgPO3. The peak depends strongly on the dopant salt. Its intensity increases as the amount of (AgI+Ag2S) increases and its position shifts to lower Q, while the number density of the glasses decreases with x. This peak can be associated with an intermediate structure of particles lying inside a continuous host with the characteristic length between 5 and 10 Å [1].

Item Type: Article
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 11:33
Last Modified: 01 Dec 2018 11:33
URI: http://repo-nkm.batan.go.id/id/eprint/7056

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