Effect of constraint volume of mould system towards the rheological properties of magnetorheological foam.

Autor: Marzuki, Ainaa Amirah, Nordin, Nur Azmah, Mazlan, Saiful Amri, Leong, Siti Asma' Nikmat, Ubaidillah, Ubaidillah, Khaidir, Rahayu Emilia Mohamed, Hapipi, Norhiwani Mohd, Yunus, Nurul Azhani
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 3239 Issue 1, p1-7, 7p
Abstrakt: Different fabrication process would result to different properties of material. This is due to the properties of porous materials are highly dependent on its structure. In this study, magnetorheological (MR) foam was prepared via two fabrication processes, namely open mould system and constraint volume mould system which was also known as open-mould (O-MRFoam) and closed-mould system (C-MRFoam), respectively. The characteristics and properties of the fabricated MR foam were presented in this paper. The characteristics of MR foam such as morphological and rheological behavior in terms of storage modulus and linear viscoelastic (LVE) region were experimentally investigated. It can be seen that the properties of MR foam were affected by different fabrication processes. In terms of morphological observation, the average area of pores decreases by 39% when a constraint volume mould system was implied to the fabrication process of the MR foam. It is believed that the distribution of magnetic particles become more compact resulting to more bubble nucleation during the foaming process. As a result, the storage modulus of MR foam was successfully enhanced along with the decrement of the size of pores. Therefore, the results obtained from this study would widen the potential MR foam especially for the use of applications with controllable stiffness. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index