Phase transition in NH^sub 4^HSO^sub 4^-porous glasses nanocomposites
The results of investigations of porous glasses (PG) and porous glasses-ammonium hydrogen sulfate ferroelectric nanocomposites (AHS-PG) are presented. On the basis of dielectric and calorimetric measurements it was shown that in the AHS-PG nanocomposites with average pore size of 44, 68, 95, and 320...
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| Veröffentlicht in: | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2013-07, Vol.15 (7), p.1 |
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| creator | Ciman, Agnieszka Marciniszyn, Tomasz Enke, Dirk Barascu, Andrei Poprawski, Ryszard |
| description | The results of investigations of porous glasses (PG) and porous glasses-ammonium hydrogen sulfate ferroelectric nanocomposites (AHS-PG) are presented. On the basis of dielectric and calorimetric measurements it was shown that in the AHS-PG nanocomposites with average pore size of 44, 68, 95, and 320 nm the anomalies of dielectric permittivity and specific heat similar to those in bulk crystals AHS are observed. An influence of the mean value of pores sizes on the ferroelectric phase transition temperatures of AHS nanocrystals embedded into the porous matrices was determined. It was shown that in AHS-PG dispersion of the dielectric permittivity is observed in both para- and ferro-electric phases and above room temperature AHS-PG nanocomposites exhibit the ionic conductivity.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s11051-013-1756-5 |
| format | Article |
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It was shown that in AHS-PG dispersion of the dielectric permittivity is observed in both para- and ferro-electric phases and above room temperature AHS-PG nanocomposites exhibit the ionic conductivity.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 1388-0764</identifier><identifier>EISSN: 1572-896X</identifier><identifier>DOI: 10.1007/s11051-013-1756-5</identifier><language>eng</language><publisher>Dordrecht: Springer Nature B.V</publisher><subject>Ammonium ; Crystals ; Nanoparticles ; Pore size ; Porous media ; Specific heat ; Transition temperatures</subject><ispartof>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2013-07, Vol.15 (7), p.1</ispartof><rights>Springer Science+Business Media Dordrecht 2013</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,782,786,27931,27932</link.rule.ids></links><search><creatorcontrib>Ciman, Agnieszka</creatorcontrib><creatorcontrib>Marciniszyn, Tomasz</creatorcontrib><creatorcontrib>Enke, Dirk</creatorcontrib><creatorcontrib>Barascu, Andrei</creatorcontrib><creatorcontrib>Poprawski, Ryszard</creatorcontrib><title>Phase transition in NH^sub 4^HSO^sub 4^-porous glasses nanocomposites</title><title>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</title><description>The results of investigations of porous glasses (PG) and porous glasses-ammonium hydrogen sulfate ferroelectric nanocomposites (AHS-PG) are presented. 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| subjects | Ammonium Crystals Nanoparticles Pore size Porous media Specific heat Transition temperatures |
| title | Phase transition in NH^sub 4^HSO^sub 4^-porous glasses nanocomposites |
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