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DC Field | Value | Language |
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dc.contributor.author | Krasutskaya, N. S. | en |
dc.contributor.author | Chizhova, Ye. A. | en |
dc.contributor.author | Busel', T. S. | en |
dc.contributor.author | Klyndyuk, A. I. | en |
dc.date.accessioned | 2017-03-10T07:58:43Z | - |
dc.date.available | 2017-03-10T07:58:43Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Thermoelectric properties of (Na,M)xCoO2 (M= Li, K, Cs)ceramics / N. S. Krasutskaya [et al.] // // Proceedings of BSTU. – Minsk : BSTU. – 2013. – № 3. – P. 35-39. | en |
dc.identifier.uri | https://elib.belstu.by/handle/123456789/12133 | - |
dc.description.abstract | The (Na,M)xCoO2(M= Li, K, Cs, x= 0.55, 0.89) ceramics was synthesized, and its phase composition, thermal expansion, electrical conductivity and thermo-EMF were investigated. The materials obtained were polyphase ones and theyconsisted of sodium cobaltite (?-NaxCoO2), Co3O4and of other alkaline metals cobaltites (LiCoO2, KCoO2, Cs2CoO3). The temperature dependences of electrical conductivity of the (Na,M)0.55CoO2(M= K, Cs) and (Na,M)0.89CoO2samples had semiconducting character, but (Na,Li)0.55CoO2ones had metallic character. The materials studied were p-type conductors, which thermo-EMF and power factor (P) values rose at temperature increasing, and values of linear thermal expansion coefficient varied within (11.1–14.9) · 10 –6 K –1 . Inserting into Na0.55CoO2ceramics the lithium or potassium oxides increased its power factor, thus, for Na0.28K0.27CoO2compound P1100= 361 ?W ?m –1 ?K –2 , which was 85% higher than for Na0.55CoO2. | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | en | en |
dc.publisher | BSTU | en |
dc.subject | керамика | ru |
dc.subject | фазовый состав керамики | ru |
dc.subject | электропроводность | ru |
dc.subject | термоЭДС | ru |
dc.title | Thermoelectric properties of (Na,M)xCoO2 (M= Li, K, Cs)ceramics | en |
dc.type | Article | en |
dc.identifier.udc | 54-31+536.413+537.31/.32+666.654 | - |
Appears in Collections: | 2013, № 3 |
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