TY - JOUR

T1 - Conditions for production of composite material based on aluminum and carbon nanofibers and its physic-mechanical properties

AU - Tolochko, Oleg V.

AU - Koltsova, Tatiana S.

AU - Bobrynina, Elizaveta V.

AU - Rudskoy, Andrei I.

AU - Zemtsova, Elena G.

AU - Kirichenko, Sergey O.

AU - Smirnov , Vladimir M.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Aluminum-based metallic matrix composites reinforced by carbon nanofibers (CNFs) are important precursors for development of new light and ultralight materials with enhanced properties and high specific characteristics. In the present work, powder metallurgy technique was applied for production of composites based on reinforcement of aluminum matrices by CNFs of different concentrations (0~2.5 wt%). CNFs were produced by chemical vapor deposition (CVD) and mechanical activation. We determined that in situ synthesis of carbon nanostructures with subsequent mechanic activation provides satisfactory distribution of nanofibers and homogeneous composite microstructure. Introduction of 1 vol% of flux (0.25 NaCl + 0.25 KCl + 0.5 CaF 2 ) during mechanic activation helps to reduce the strength of the contacts between the particles. Additionally, better reinforcement of alumina particles and strengthening the bond between CNFs and aluminum are observed due to alumina film removal. Introduction of pure aluminum into mechanically alloyed powder provides the possibility to control composite durability, plasticity and thermal conductivity.

AB - Aluminum-based metallic matrix composites reinforced by carbon nanofibers (CNFs) are important precursors for development of new light and ultralight materials with enhanced properties and high specific characteristics. In the present work, powder metallurgy technique was applied for production of composites based on reinforcement of aluminum matrices by CNFs of different concentrations (0~2.5 wt%). CNFs were produced by chemical vapor deposition (CVD) and mechanical activation. We determined that in situ synthesis of carbon nanostructures with subsequent mechanic activation provides satisfactory distribution of nanofibers and homogeneous composite microstructure. Introduction of 1 vol% of flux (0.25 NaCl + 0.25 KCl + 0.5 CaF 2 ) during mechanic activation helps to reduce the strength of the contacts between the particles. Additionally, better reinforcement of alumina particles and strengthening the bond between CNFs and aluminum are observed due to alumina film removal. Introduction of pure aluminum into mechanically alloyed powder provides the possibility to control composite durability, plasticity and thermal conductivity.

KW - Al-CNF composite

KW - Carbon nanofibers

KW - Durability

KW - In situ synthesis of CNF

KW - Mechanic activation

KW - Plasticity

KW - Thermal conductivity

KW - durability

KW - plasticity

KW - STRENGTH

KW - in situ synthesis of CNF

KW - carbon nanofibers

KW - POWDERS

KW - SURFACE

KW - NANOTUBES

KW - FABRICATION

KW - mechanic activation

KW - thermal conductivity

KW - MATRIX COMPOSITES

UR - http://www.scopus.com/inward/record.url?scp=85065328500&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/conditions-production-composite-material-based-aluminum-carbon-nanofibers-physicmechanical-propertie

U2 - 10.3390/nano9040550

DO - 10.3390/nano9040550

M3 - Article

C2 - 30987292

VL - 9

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 4

M1 - 550

ER -