Minaeva E. D.1, Minaev N. V.1, Popyrina T. N.2, Demina T. S.2, Gonchukov S. A.3,4, Zakharkina O. L.1, Ignatieva N. Yu.5, Yusupov V. I.1
1Institute of Photon Technologies Kurchatov Complex Crystallography and Photonics NRC "Kurchatov Institute", Troitsk, Moscow, Russia
2Moscow Aviation Institute (National Research University) MAI, Moscow, Russia
3National Research Nuclear University “MEPhI”, Moscow, Russia
4Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
5Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
Email: minaeva.e.d@bk.ru
Temperature fields and microstructural features of microparticles and structures made from them were investigated using thermography. Significant underestimation of instrument readings was revealed near the polymer melting temperature and in the area of laser spot impact. Structure formation depends on the composition of microparticles and laser exposure conditions. The most reproducible sintering result is observed for moistened microparticles with chitosan. The obtained results are collectively important for the development and optimization of technologies for synthesizing polymer powders and forming three-dimensional structures from them using laser additive technologies. Keywords: thermal fields, laser sintering, DSC, thermography.
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