| Naslov: | Chemical reactions between $BaTiO_3$ ceramic and fluorine-containing atmosphere |
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| Avtorji: | ID Makovec, Darko (Avtor)
ID Ule, Nina (Avtor)
ID Drofenik, Mihael (Avtor) |
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| Datoteke: |  Acta_Chimica_Slovenica_2002_Makovec,_Ule,_Drofenik_Chemical_reactions_between_BaTiO~_3_ceramics_and_fluorine-containing_atmosphere.pdf (1,20 MB)
MD5: A8E7ADD9665CB3C10CE66B5F1CF2B86E
 http://acta-arhiv.chem-soc.si/49/49-2-229.pdf
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FKKT - Fakulteta za kemijo in kemijsko tehnologijo
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| Opis: | ▫$BaTiO_3$▫ ceramics were exposed to fluorine-containing atmosphere prepared by introducing a fluorination agent (▫$CF_3CH_2OH$▫) into a hot alumina-tube furnace. The fluorinated samples were studied using SEM and TEM. The fluorination resulted in the formation of a surface-reaction layer with a complex structure. At the reaction front fluorine reacts with ▫$BaTIO_3$▫ to produce ▫$BaF_2$▫ and ▫$BaTi_2O_5$▫. During the course of the fluorination the ▫$BaTi_2O_5$▫ reacts further to produce ▫$BaF_2$▫ and then subsequently Ba-polytitanates with an increasing content of titanium, and then finally ▫$TiO_2$▫. Fluorine also diffuses along the grain boundaries towards the pellet's interior. The presence of the fluorine stabilises the ▫$BaTi_2O_5$▫ compound and consequently triggers its formation in the ceramic's interior in a reaction between ▫$BaTiO_3$▫ and the intergranular phase ▫$Ba_6Ti_{17}O_{40}$▫. |
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| Ključne besede: | ceramics, fluorinated ceramic samples, stabilising, electronic ceramics |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Leto izida: | 2002 |
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| Št. strani: | str. 229-241 |
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| Številčenje: | Letn. 49, št. 2 |
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| PID: | 20.500.12556/DKUM-53125  |
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| ISSN: | 1318-0207 |
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| UDK: | 666 |
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| COBISS.SI-ID: | 7168534 |
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| ISSN pri članku: | 1318-0207 |
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| NUK URN: | URN:SI:UM:DK:QOJJ3LEM |
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| Datum objave v DKUM: | 10.07.2015 |
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| Število ogledov: | 1259 |
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| Število prenosov: | 126 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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