Year: 2026
Type: article
Abstract: To study the nature of the interaction in the PbSe-MnSe system, alloys were synthesized in a wide range of concentrations and studied using differential-thermal analysis (DTA), X-ray diffraction (XRD) and microstructural analysis (MSA), as well as density and microhardness measurements.A T-x phase diagram was constructed.It was established that the phase diagram of the PbSe-MnSe system is a quasi-binary section of the ternary Pb-Mn-Se system.A study of the phase equilibrium revealed that a compound containing PbMnSe 2 in a 1:1 component ratio is formed in the PbSe-MnSe system.The PbMnSe 2 compound melts congruently at 1150°C.X-ray diffraction analysis showed that the PbMnSe 2 compound crystallizes in the tetragonal crystal system with the unit cell: a = 13.97;c = 8.20 Å, density ρ _pycn = 5.62 g/cm 3 , ρ X-ray = 5.66 g/cm 3 .It was found that in the system at room temperature, the solid solution content of PbSe-based solid solutions contain up to 5 mol.% MnSe, while that of MnSe-based solid solutions reaches 2.5 mol.% PbSe.Co-crystallization of PbSe and PbMnSe 2 compounds ends at the eutectic point containing 25 mol.% MnSe, at 850°C.Another eutectic is formed between PbMnSe 2 and γ-MnSe with a content of 60 mol.% MnSe, temperature 960°C.
DOI: 10.62476/nmca.101223
Language: English
Subfield: General Materials Science
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7148898586