Agglomeration and thermophysical parameters investigation of nanocrystalline Al 2 SiO 5 particles at different heating rates

Huseynov E. M., Naghiyev E. A., Naghiyev T. G., Rzayev R. M.

MATERIALS LETTERS, vol.370, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 370
  • Publication Date: 2024
  • Doi Number: 10.1016/j.matlet.2024.136789
  • Journal Name: MATERIALS LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

DTA, TGA, and DTG methods were applied at different heating rates to comparative study of thermal parameters of nanocrystalline Al2SiO5 particles. Hydroxyl groups on the surface of the nanoparticles and the process of their release under the influence of temperature were explained by the corresponding DSC spectra. Simultaneously, the size and composition of the nanoparticles were measured by HRTEM imaging and EDX analysis. Possible andalusite - sillimanite transition of Al2SiO5 modifications, and amorphization processes under the influence of temperature were investigated by the DTA approach. Around 850 K "triple point" of Al2SiO5 modifications was analyzed by the DSC spectroscopy.