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Hindi Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777
Dimitrova R Author
Subjects of specialization
Affiliation
Microstructure, Structural Analysis, Mechanical Properties, Mechanical Behavior of Materials, Materials
Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre "Acad. A. Balevski", Bulgarian Academy of Sciences, Sofia, Bulgaria
Biography
Rossitza Dimitrova currently works at the Angel Balevski Institute of Metal Science, Equipment and Technologies with Center for Hydro and Aerodynamics, Bulgarian Academy of Sciences. Rossitza does research in Materials Science. Their current project is 'Surface modification of aluminum and aluminum alloys with nanoparticles by means of intensity energy flows.'
Publications
Research Article Open Access
Study of the Influence of Modification by Nanocompositions both on the Process of Crystallization and on the Structure of Aluminum Alloy AlSi7Mg
Author(s): Kuzmanov P*, Velikov Ð, Dimitrova R, Cherepanov A and Manolov V
A study of the cast alloy A356, modified by various types of nanoparticles has been carried out. SiC, AlN, TiN, clad by Cu, Ag and Al have been used. The cladding has been done by the following methods: currentless chemical method, extrusion of a composite rod, tableting and mechanical-chemical treatment in a planetary mill. The obtained nanocompositions (NCs) have been introduced into the crucible of the furnace. Homogenization has been conducted after that by using an impeller. The samples have been cast in thin-walled steel containers. The non-stationary temperature has been measured during cooling and crystallization. Data about the dependencies of the temperature on time have been obtained and the magnitude of overcooling for the cases with and without NCs has been determined. It h... view more»
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