TUDY OF THE REGION OF GLASS FORMATION IN THE CUTS AS2S3-HOS AND AS2S3-HO2S3

Authors

  • T. Ilyasly Baku State University
  • D. Hasanova Baku State University
  • Z. Ismailov Baku State University

Keywords:

cut, temperature, microhardness, alloy, density, glass

Abstract

Using the methods of differential thermal, X-ray phase, microstructural analyzes, as well as measuring the microhardness and determining the density of the alloys, the region of glass formation along the As2S3-HoS and As2S3-Ho2S3 sections and some physicochemical properties of glasses were established.

The synthesis mode was selected taking into account the physicochemical properties of the elements of binary compounds and the results of recording the synthesis of alloys by differential thermal analysis (DTA).

It was established that the glass formation regions in the ternary system Ho - As - S along the As2S3-HoS and As2S3-Ho2S3 sections. The results of the study showed that the samples of the As2S3-HoS section in the concentration range of 15 and 20 mol%, and the As2S3-Ho2S3 section 18 and 25 mol % are glass.

 It was revealed that alloys containing up to 10 mol% HoS and Ho2S3 upon slow cooling to room temperature are obtained in a glassy form.

Based on the results of studying the macroscopic properties of glasses, it was found that with an increase in the cooling rate, the glass formation region and the value of macroscopic properties increase with an increase in the concentration of holmium and its chalcogenides, and judging by the values of macroscopic properties, it is possible to assume the formation of new structural units, except for As2S3/2.

Author Biographies

T. Ilyasly , Baku State University

doctor of chemical sciences, professor

D. Hasanova , Baku State University

Ph.D. Student 

Z. Ismailov , Baku State University

Ph.D in Technical Science, Associate Professor 

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Published

2021-04-02

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