Iranian Journal of Manufacturing Engineering

Iranian Journal of Manufacturing Engineering

Morphology of tensile and wear surfaces of resin / alumina nanocomposite

Document Type : Original Article

Authors
Hossein Maleki 1
Parviz Asadi 2
Mostafa Akbari 3
Hossein Rahimi Asiabaraki 3
1 MSc Student, Department of Mechanical Engineering, Imam Khomeini International University, Qazvin, Iran
2 Faculty Member, Department of Mechanical Engineering, Imam Khomeini International University, Qazvin, Iran
3 Faculty Member, Department of Mechanical Engineering, National University of Skills (NUS), Tehran, Iran
10.22034/ijme.2024.458104.1962
Abstract
In this study, by adding different amounts of aluminum oxide nano powder to the resin and producing resin / alumina nanocomposite samples using digital light processing (DLP), the effect of different nano powder content on the mechanical properties of the samples, including tensile strength and wear resistance, was investigated. Then, the morphology of the tensile and wear surfaces of the produced resin / alumina nanocomposite was investigated. By increasing the alumina content up to 2% by weight, the tensile strength decreased due to the clustering of nano powders and the creation of stress concentration points and the initiation of failure. Continuing to increase the amount of reinforcing particles caused the phenomenon of crack deviation and the tensile strength improved, so that finally with 8 wt% alumina, the tensile strength increased by nearly 16% compared to the pure resin sample. The lowest tensile strength of alumina nanocomposite was observed in the sample of 1.5% by weight of alumina. In addition, with an increase in the weight percentage of alumina in the nanocomposite, firstly, the weak force of the interface between the resin and the nano powder led to a decrease in wear resistance, and then it improved with the increase of the reinforcing content. finally, at 8 wt%, the specific wear rate was close to It decreased to 62% compared to the pure resin sample.
Keywords
Digital Light Processing
Appearance
Alumina Nanocomposite
Mechanical Properties
Resin
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Iranian Journal of Manufacturing Engineering
Volume 11, Issue 7 - Serial Number 81
September 2024
Pages 35-45