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April 27-29, 2020

Doina Elena Gavrila

Keynote Speaker for Nano 2020
Doina Elena Gavrila
Universities of Bucharest, Romania
Title : Cristallinity and characteristics of HDPE with metallic powders: Al and Fe

Abstract:

Metallic powders Al and Fe were used as fillers in HDPE. Powders with two dimensions of particles for Al and two dimensions of particles for Fe were used. By extrusion and injection were obtained composite materials with different concentration of metallic fillers: 3, 5, and 8%. A comparative experimental study of the crystallinity and of their influence on the characteristics of materials was effectuated. Mechanical characteristics ( hardness, depth of penetration, modulus of elasticity, elastic and plastic area), melting temperature and the energy of melting, thermal conductivity, weight losses were determined. Both the particle sizes and their concentrations influenced the determined characteristics

Biography:

Doina Elena Gavrila, Romanian physicist, researcher. Member Professional Commission Universities of Bucharest, 1985-1989. Member New York Academy of Sciences, Romanian Physics Society. She holds Bachelor of Science with honors, Aurel Vlaicu College, Bucharest, 1959. Master of Science in Physics, University Bucharest, 1965. Doctor of Philosophy, University Bucharest, 1975.