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Eurasian Journal of Physics and Functional Materials最新文献

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Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S 新型纳米复合超离子半导体K0.01Cu1.96S、K0.02Cu1.95S、k0.03 cu1.94 4s、K0.04Cu1.93S、k0.05 cu1.94 4s的导热性能
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-09-25 DOI: 10.32523/ejpfm.2023070307
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
{"title":"Thermal conductivity of new nanocomposite superionic semiconductors K0.01Cu1.96S, K0.02Cu1.95S, K0.03Cu1.94S, K0.04Cu1.93S, K0.05Cu1.94S","authors":"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","doi":"10.32523/ejpfm.2023070307","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070307","url":null,"abstract":"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 K 0.01 Cu 1.96 S, K 0.02 Cu 1.95 S, K 0.03 Cu 1.94 S, K 0.04 Cu 1.93 S, K 0.05 Cu 1.94 S 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 K 0.01 Cu 1.96 S is a mixture of phases consisting of chalcocite Cu 2 S (82%), jarleite Cu 1.96 S (12%), anilite Cu 1.75 S (6%). The composition of samples K 0.02 Cu 1.95 S and K 0.03 Cu 1.94 S includes the most common phases of copper sulfides - chalcocite Cu 2 S , jarleite Cu 1.96 S, digenite Cu 1.80 S. Samples K 0.04 Cu 1.93 S and K 0.05 Cu 1.94 S consist of jarleite Cu 1.96 S, digenite Cu 1.80 S and potassium copper sulfide KCu 4 S 3 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 K 0.02 Cu 1.95 S and K 0.03 Cu 1.94 S are very favorable for achieving high thermoelectric figure of merit ZT material.","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase transitions in copper tellurides 碲化铜的相变
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-09-25 DOI: 10.32523/ejpfm.2023070304
N. N. Bikkulova, A. Kh. Kutov, G. R. Akmanova, A. R. Kurbangulov, D. I. Safargaliev, L. V. Tsygankova
{"title":"Phase transitions in copper tellurides","authors":"N. N. Bikkulova, A. Kh. Kutov, G. R. Akmanova, A. R. Kurbangulov, D. I. Safargaliev, L. V. Tsygankova","doi":"10.32523/ejpfm.2023070304","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070304","url":null,"abstract":"This paper presents the results of model calculations of the structure of the Cu-Te system at low temperatures, as well as the results of a study of the structure and phase transitions of synthesized non-stoichiometric compounds of copper tellurides. For the first time, using the USPEX evolutionary algorithm, model computer calculations of the search for stable phases of copper tellurides Cu n Te m (n,m = 1÷10) were carried out. At temperature T = 0 K and pressure p = 1 atm. As stable structures, the compositions Cu 5 Te 4 , Cu 3 Te 2 , and Cu 7 Te 4 were identified, which are indicated in the triclinic and monoclinic syngonies. Based on the study of the phase diagram, calorimetric measurements and X-ray diffraction studies of experimentally synthesized samples of copper telluride, it was found that the non-stoichiometric compositions Cu 1.96 Te, Cu 1.85 Te, Cu 1.80 Te and Cu 1.75 Te at room temperature are single-phase. The Cu 1.85 Te, Cu 1.80 Te, and Cu 1.75 Te compounds are described by hexagonal crystalline superstructures obtained on the basis of the Novotny phase for Cu 2 Te with different degrees of unit cell parameter multiplicity. Cu1.96Te at room temperature is indicated in an orthorhombic phase with lattice parameters that are also multiples of the unit cell parameters of the Novotny phase. At high temperatures, all compositions of Cu 2−x Te (x=0.04, 0.15, 0.20, 0.25) transform into high-temperature disordered FCC structures that exist up to their melting point. It is shown that in these compounds the transition of a low-temperature hexagonal and orthorhombic structure to a high-temperature FCC phase occurs through a series of polymorphic phase transformations.","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135814949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal and electrical properties of nanocrystalline superionic NaxCu1.75S (x=0.1, 0.15, 0.2, 25) compounds 纳米超离子NaxCu1.75S (x=0.1, 0.15, 0.2, 25)化合物的热电性质
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-03-26 DOI: 10.32523/ejpfm.2023070105
M. Kubenova, K. Kuterbekov, M. Balapanov, R. Ishembetov, B. Akhmetgaliev, A. Kabyshev, K. Bekmyrza, M. Zeleev, R. Palymbetov, B. Baikhozhaeva
{"title":"Thermal and electrical properties of nanocrystalline superionic NaxCu1.75S (x=0.1, 0.15, 0.2, 25) compounds","authors":"M. Kubenova, K. Kuterbekov, M. Balapanov, R. Ishembetov, B. Akhmetgaliev, A. Kabyshev, K. Bekmyrza, M. Zeleev, R. Palymbetov, B. Baikhozhaeva","doi":"10.32523/ejpfm.2023070105","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070105","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44697985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Super–protonic conductors for solid acid fuel cells (SAFCs): a review 固体酸燃料电池用超质子导体研究进展
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-03-26 DOI: 10.32523/ejpfm.2023070101
S. Afroze, M. S. Reza, M. R. Somalu, A. Azad
{"title":"Super–protonic conductors for solid acid fuel cells (SAFCs): a review","authors":"S. Afroze, M. S. Reza, M. R. Somalu, A. Azad","doi":"10.32523/ejpfm.2023070101","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070101","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":"179 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41259092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Luminescent properties of BaxMg(2−x)F4:W ceramics BaxMg（2−x）F4:W陶瓷的发光性能
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-03-26 DOI: 10.32523/ejpfm.2023070103
T. Koketai, A. Strelkova, A. Zhunusbekov, Z. Karipbayev, L. Lisitsyna, A.M. Chakin
{"title":"Luminescent properties of BaxMg(2−x)F4:W ceramics","authors":"T. Koketai, A. Strelkova, A. Zhunusbekov, Z. Karipbayev, L. Lisitsyna, A.M. Chakin","doi":"10.32523/ejpfm.2023070103","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070103","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45432113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of silver nanoparticles by green method using ligustrum sinense to study their structural and photoluminescence properties 利用紫荆绿法合成纳米银，研究其结构和光致发光性能
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-03-26 DOI: 10.32523/ejpfm.2023070104
S. Khan, S. Patel, P. Shukla, R. Kumar, R. Dixit
{"title":"Synthesis of silver nanoparticles by green method using ligustrum sinense to study their structural and photoluminescence properties","authors":"S. Khan, S. Patel, P. Shukla, R. Kumar, R. Dixit","doi":"10.32523/ejpfm.2023070104","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070104","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43124192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electron-hole trapping centers in Na2SO4 with a transition metal impurity Mn 含过渡金属杂质Mn的Na2SO4中的电子空穴捕获中心
Eurasian Journal of Physics and Functional Materials Pub Date : 2023-03-26 DOI: 10.32523/ejpfm.2023070102
T. Nurakhmetov, T. Alibay, S. Pazylbek, A. Zhunusbekov, B. Sadykova, D. Tolekov, R. K. Shamieva, A.S. Nurpeissov
{"title":"Electron-hole trapping centers in Na2SO4 with a transition metal impurity Mn","authors":"T. Nurakhmetov, T. Alibay, S. Pazylbek, A. Zhunusbekov, B. Sadykova, D. Tolekov, R. K. Shamieva, A.S. Nurpeissov","doi":"10.32523/ejpfm.2023070102","DOIUrl":"https://doi.org/10.32523/ejpfm.2023070102","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49432213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Non-destructive structural studies of coins from the Uzundara Fortress using X-ray diffraction and neutron tomography 使用x射线衍射和中子断层扫描对乌祖达拉要塞硬币进行非破坏性结构研究
Eurasian Journal of Physics and Functional Materials Pub Date : 2022-12-25 DOI: 10.32523/ejpfm.2022060401
Yu. M. Tashmetov, B. Yuldashev, S. Adizov, N. B. Ismatov, S. Pidaev, S. Kichanov, B. Abdurakhimov, D. Kozlenko, N. Dvurechenskaya, I. Saprykina
{"title":"Non-destructive structural studies of coins from the Uzundara Fortress using X-ray diffraction and neutron tomography","authors":"Yu. M. Tashmetov, B. Yuldashev, S. Adizov, N. B. Ismatov, S. Pidaev, S. Kichanov, B. Abdurakhimov, D. Kozlenko, N. Dvurechenskaya, I. Saprykina","doi":"10.32523/ejpfm.2022060401","DOIUrl":"https://doi.org/10.32523/ejpfm.2022060401","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44000937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis procedures in deriving of the differential cross section of the reaction pp ! {pp}sp0 at energies 1.6–2.4 GeV 分析程序在推导的微分截面的反应pp !{pp}sp0的能量为1.6-2.4 GeV
Eurasian Journal of Physics and Functional Materials Pub Date : 2022-12-25 DOI: 10.32523/ejpfm.2022060403
B. Baimurzinova, D. Tsirkov
{"title":"Analysis procedures in deriving of the differential cross section of the reaction pp ! {pp}sp0 at energies 1.6–2.4 GeV","authors":"B. Baimurzinova, D. Tsirkov","doi":"10.32523/ejpfm.2022060403","DOIUrl":"https://doi.org/10.32523/ejpfm.2022060403","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45284489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of high strength and corrosion resistance composition cover on the surface of casting 在铸件表面形成高强度、耐腐蚀的成分覆盖物
Eurasian Journal of Physics and Functional Materials Pub Date : 2022-12-25 DOI: 10.32523/ejpfm.2022060404
R. J. Bashirov, F. Rasulov
{"title":"Formation of high strength and corrosion resistance composition cover on the surface of casting","authors":"R. J. Bashirov, F. Rasulov","doi":"10.32523/ejpfm.2022060404","DOIUrl":"https://doi.org/10.32523/ejpfm.2022060404","url":null,"abstract":"","PeriodicalId":36047,"journal":{"name":"Eurasian Journal of Physics and Functional Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44781874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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