Character of the interaction in the As2Te3-TISe System and Electrophysical Propertes of the Phases Obtained

Yıl 2022, Cilt: 8 Sayı: 2, 302 - 311, 31.12.2022

İmir Aliev , Ceyran Ahmedova

https://doi.org/10.29132/ijpas.1020404

Öz

The character of the interaction in the As2Te3-TlSe system was studied by the methods of Differential Thermal Analysis (DTA), X-ray Diffraction (XRD), Microstructure analysis (MCA), and also by measuring the microhardness and determining the density of alloys, and state diagram was constructed. It is established that the As2Te3-TlSe state diagram is a quasibinary section of the triple mutual system As, Tl // Se, Te. Two new compounds, TlAs2Te3Se and Tl3As2Se3Te3, are formed in the As2Te3-TlSe system. Both compounds are obtained in the vitreous state. Solid solutions based on As2Te3 at room temperature reach up to 3 mol.% TlSe, and based on TlSe-2 mol.% As2Te3. The electrical conductivity and thermoelectric power coefficient of the (As2Te3)1-x (TlSe)x solid solutions have been measured as functions of temperature.

Anahtar Kelimeler

Alloys, compound, congruently, thermoelectric

Destekleyen Kurum

The work has been carried out within the framework of the international joint research laboratory “Advanced Materials for Spintronics and Quantum Computing” (AMSQC) established between Institute of Catalysis and Inorganic Chemistry of ANAS (Azerbaijan) and Donostia International Physics Center (Basque Country, Spain).

Teşekkür

The work has been carried out within the framework of the international joint research laboratory “Advanced Materials for Spintronics and Quantum Computing” (AMSQC) established between Institute of Catalysis and Inorganic Chemistry of ANAS (Azerbaijan) and Donostia International Physics Center (Basque Country, Spain).

As2Te3-TlSe Sistemindeki Etkileşimin Karakteri ve Elde Edilen Fazların Elektrofiziksel Özellikleri

Öz

As2Te3-TlSe sistemindeki etkileşimin karakteri, Diferansiyel Termal Analiz (DTA), X-ışını Kırınım (XRD), Mikroyapı analizi (MCA) yöntemleri ile ve ayrıca mikrosertlik ölçülerek ve alaşımların yoğunluğu belirlenerek incelenmiştir ve durum diyagramı oluşturulmuştur.
As2Te3-TlSe faz diyagramı As, Tl // Se, Te üçlü karşılıklı systemin kuvazi binar kesiti olduğu tespit edilmiştir. As2Te3-TlSe sisteminde iki yeni bileşik, TlAs2Te3Se ve Tl3As2Se3Te3 oluşturulmuştur. Her iki bileşik de camsı halde elde edilir. Oda sıcaklığında As2Te3 bileşiğine dayalı katı çözelti alanı 3 mol. % TlSe ve TlSe bileşiğine dayalı katı çözelti alanı ise 2 mol. % As2Te3 olarak belirlenmiştir.
(As2Te3)1-x (TlSe)x katı çözeltilerinin elektrik iletkenliği ve termoelektrik gücü, sıcaklığın fonksiyonu olarak ölçülmüştür.

Anahtar Kelimeler

Alaşımlar, bileşik, kongruent, termoelektrik

Kaynakça

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