Naslov
Characterization of nanocomposites based on Al- alloy and multiwall carbon nanotubes prepared by industrial High Pressure Die Casting method

Autori
Brnardić, Ivan ; Špada, Vedrana ; Stanić, Davor ; Holjevac Grgurić, Tamara

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract book MultiComp Aveiro Spring Meeting 2019 / - , 2019, 75-75

Skup
MULTICOMP Aveiro Spring Meeting 2019

Mjesto i datum
Portugal, 21.04.2019. - 22.04.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nanocomposite ; Al-aloy ; Multiwall Carbon Nanotubes ; High Pressure Die Casting

Sažetak
Further development of the transport industry is based on two main goals, finding of new lightweight materials with changed mechanical properties and the adoption of environmentally friendly technologies. Materials showing great potential through changed and targeted mechanical properties are nanocomposites based on a polymer matrix or metal [1, 2]. Use of nanocomposites in parts production could result in a reduction of part dimensions, and eventually on a weight of a final part. Aluminium alloys are used massively in the vehicle parts production manufacture, so the possibility for preparation of nanocomposites based on aluminum alloy AlSi9Cu3(Fe) and multiwall carbon nanotubes (MWCNTS) by the High Pressure Die Casting method (HPDC) was investigated. Nanocomposite samples were prepared on industrial HPDC machine Buhler 42D by placing MWCNTs before piston and directly in the tool with a different ratios 0.05, 0.1 and 0.2 wt. %. Degradation of MWCNTs introduced in Aluminium alloy at 690°C did not occurred that was confirmed by a scanning electron microscopy. Microstructural, metallographic and mechanical properties were studied by an optical microscope and universal testing machine. Nanocomposites with 0.05 wt.% MWCNTs placed before a piston showed finest microstructure, with smaller primary grain size of Al, that was in a correlation with the mechanical testing results, increased elongation at break and tensile strength.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Metalurgija

POVEZANOST RADA