Szczegóły publikacji
Opis bibliograficzny
”SPS melting” method: a new way for one-step fast synthesis and sintering of $Cu_{2}Se$ superionic thermoelectric materials with excellent thermoelectric properties / Paweł NIERODA, Vaclav Tyrpekl, Mirosław J. Kruszewski, Juliusz LESZCZYŃSKI, Paweł RUTKOWSKI, Anna KUSIOR, Agnieszka WOJTECZKO, Małgorzata Rudnik, Bertrand Lenoire, Andrzej KOLEŻYŃSKI // Ceramics International ; ISSN 0272-8842 . — Tytuł poprz.: Ceramurgia International ; ISSN: 0390-5519. — 2025 — vol. 51 iss. 27 pt. A, s. 52880–52887. — Bibliogr. s. 52885–52887, Abstr. — Publikacja dostępna online od: 2025-09-04
Autorzy (10)
- AGHNieroda Paweł
- Tyrpekl Vaclav
- Kruszewski Mirosław J.
- AGHLeszczyński Juliusz
- AGHRutkowski Paweł
- AGHKusior Anna
- AGHWojteczko Agnieszka
- AGHRudnik Małgorzata
- Lenoire Bertrand
- AGHKoleżyński Andrzej
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 164229 |
|---|---|
| Data dodania do BaDAP | 2025-12-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ceramint.2025.09.045 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Ceramics International |
Abstract
The aim of this work was to propose a new one-step approach to the synthesis and densification of Cu2Se using a method we call “SPS melting”. In this method, a special graphite container is placed inside a graphite die that is standardly used in the SPS technique. Due to this, synthesis by direct reaction between Cu and Se and then densification by melting the resulting Cu2Se are possible under controlled temperature conditions and in an appropriate gas atmosphere, i.e. argon and vacuum. The homogeneity of high-density Cu2Se samples (6.75 g cm−3) in terms of phase and chemical composition was confirmed by X-ray diffraction (XRD) and scanning electron microscopy (SEM-EDS). Crystal orientation was determined using the back-scattered electron diffraction technique (SEM-EBSD). The homogeneity of the transport properties was examined by the scanning thermoelectric microprobe (STM) method, obtaining a unimodal distribution of the Seebeck coefficient. Thermoelectric properties, i.e. electrical and thermal conductivity and Seebeck coefficient, were measured in the temperature range of 300–965 K. The highest value of ZTmax = 1.47 was achieved at a temperature T = 936 K, which is one of the highest for non-optimized Cu2Se. The proposed single-step synthesis and densification method is a much faster approach than the currently used ones, which seems to be suitable for melting many other materials (not only thermoelectrics) in a congruent manner.
