Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S
In this work, we investigated the effect of nanostructuring on the thermoelectric and thermal properties of nonstoichiometric solid splavs doped with copper sulfides with potassium. The synthesized alloys K0.01Cu1.96S , K0.02Cu1.95S , K0.03Cu1.94S , K0.04Cu1.93S , K0.05Cu1.94S are nanocomposite. Th...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
L.N. Gumilyov Eurasian National University
2023-09-01
|
| Series: | Eurasian Journal of Physics and Functional Materials |
| Subjects: | |
| Online Access: | https://www.ephys.kz/jour/article/view/632/226 |
| _version_ | 1827762507963432960 |
|---|---|
| author | M.M. Kubenova M.Kh. Balapanov R.Kh. Ishembetov K.A. Kuterbekov R.F. Almukhametov K.Zh. Bekmyrza A.M. Kabyshev R.Sh. Palymbetov L.U. Taimuratova |
| author_facet | M.M. Kubenova M.Kh. Balapanov R.Kh. Ishembetov K.A. Kuterbekov R.F. Almukhametov K.Zh. Bekmyrza A.M. Kabyshev R.Sh. Palymbetov L.U. Taimuratova |
| author_sort | M.M. Kubenova |
| collection | DOAJ |
| description | In this work, we investigated the effect of nanostructuring on the thermoelectric and thermal properties of nonstoichiometric solid splavs doped with copper sulfides with potassium. The synthesized
alloys K0.01Cu1.96S , K0.02Cu1.95S , K0.03Cu1.94S , K0.04Cu1.93S , K0.05Cu1.94S are nanocomposite. The crystallite sizes of the synthesized powder, as estimated from the half-width of X-ray diffraction lines, range from 7 to 180 nm. Sample K0.01Cu1.96S is a mixture of phases consisting of chalcocite Cu2S (82%), jarleite Cu1.96S (12%), anilite Cu1.75S (6%). The composition of samples K0.02Cu1.95S and K0.03Cu1.94S includes the most common phases of copper sulfides - chalcocite Cu2S , jarleite Cu1.96S, digenite Cu1.80S . Samples K0.04Cu1.93S and K0.05Cu1.94S consist of jarleite Cu1.96S , digenite Cu1.80S and potassium copper sulfide KCu4S3 phases. In a practical sense, the extremely low thermal conductivity values (from 0.16 to 0.80 W/m · K) found in the range of 300–700 K for nanocomposite samples
K0.02Cu1.95S and K0.03Cu1.94S are very favorable for achieving high thermoelectric figure of merit ZT material. |
| first_indexed | 2024-03-11T10:30:35Z |
| format | Article |
| id | doaj.art-516f5c99c6b249118474f3f5810e8c15 |
| institution | Directory Open Access Journal |
| issn | 2522-9869 2616-8537 |
| language | English |
| last_indexed | 2024-03-11T10:30:35Z |
| publishDate | 2023-09-01 |
| publisher | L.N. Gumilyov Eurasian National University |
| record_format | Article |
| series | Eurasian Journal of Physics and Functional Materials |
| spelling | doaj.art-516f5c99c6b249118474f3f5810e8c152023-11-14T19:44:51ZengL.N. Gumilyov Eurasian National UniversityEurasian Journal of Physics and Functional Materials2522-98692616-85372023-09-017319720610.32523/ejpfm.2023070307Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94SM.M. Kubenova0M.Kh. Balapanov1R.Kh. Ishembetov2K.A. Kuterbekov3R.F. Almukhametov4K.Zh. Bekmyrza5A.M. Kabyshev6R.Sh. Palymbetov7L.U. Taimuratova8L.N. Gumilyov Eurasian National University, Astana, KazakhstanUfa University of Science and Technology, Ufa, RussiaUfa University of Science and Technology, Ufa, RussiaL.N. Gumilyov Eurasian National University, Astana, KazakhstanUfa University of Science and Technology, Ufa, RussiaL.N. Gumilyov Eurasian National University, Astana, KazakhstanL.N. Gumilyov Eurasian National University, Astana, KazakhstanL.N. Gumilyov Eurasian National University, Astana, KazakhstanCaspian University of Technology and Engineering named after Sh. Yessenov, Aktau, KazakhstanIn this work, we investigated the effect of nanostructuring on the thermoelectric and thermal properties of nonstoichiometric solid splavs doped with copper sulfides with potassium. The synthesized alloys K0.01Cu1.96S , K0.02Cu1.95S , K0.03Cu1.94S , K0.04Cu1.93S , K0.05Cu1.94S are nanocomposite. The crystallite sizes of the synthesized powder, as estimated from the half-width of X-ray diffraction lines, range from 7 to 180 nm. Sample K0.01Cu1.96S is a mixture of phases consisting of chalcocite Cu2S (82%), jarleite Cu1.96S (12%), anilite Cu1.75S (6%). The composition of samples K0.02Cu1.95S and K0.03Cu1.94S includes the most common phases of copper sulfides - chalcocite Cu2S , jarleite Cu1.96S, digenite Cu1.80S . Samples K0.04Cu1.93S and K0.05Cu1.94S consist of jarleite Cu1.96S , digenite Cu1.80S and potassium copper sulfide KCu4S3 phases. In a practical sense, the extremely low thermal conductivity values (from 0.16 to 0.80 W/m · K) found in the range of 300–700 K for nanocomposite samples K0.02Cu1.95S and K0.03Cu1.94S are very favorable for achieving high thermoelectric figure of merit ZT material.https://www.ephys.kz/jour/article/view/632/226thermal conductivity;nanocomposite;superionic semiconductors; |
| spellingShingle | M.M. Kubenova M.Kh. Balapanov R.Kh. Ishembetov K.A. Kuterbekov R.F. Almukhametov K.Zh. Bekmyrza A.M. Kabyshev R.Sh. Palymbetov L.U. Taimuratova Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S Eurasian Journal of Physics and Functional Materials thermal conductivity; nanocomposite; superionic semiconductors; |
| title | Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S |
| title_full | Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S |
| title_fullStr | Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S |
| title_full_unstemmed | Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S |
| title_short | Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S |
| title_sort | thermal conductivity of new nanocomposite superionic semiconductors k0 01cu1 96s k0 02cu1 95s k0 03cu1 94s k0 04cu1 93s k0 05cu1 94s |
| topic | thermal conductivity; nanocomposite; superionic semiconductors; |
| url | https://www.ephys.kz/jour/article/view/632/226 |
| work_keys_str_mv | AT mmkubenova thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT mkhbalapanov thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT rkhishembetov thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT kakuterbekov thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT rfalmukhametov thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT kzhbekmyrza thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT amkabyshev thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT rshpalymbetov thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s AT lutaimuratova thermalconductivityofnewnanocompositesuperionicsemiconductorsk001cu196sk002cu195sk003cu194sk004cu193sk005cu194s |