Mathematical Simulation of the Wettability of Al2O3 Substrate through Different Aluminum Alloys

Journal of Composites Science

Enrique Rocha-Rangel¹  Eddie N. Armendáriz Mireles¹  José A. Castillo-Robles¹  José A. Rodríguez-García¹  Carlos A. Calles-Arriaga¹ 

[1] Research and Postgraduate Department, Polytechnic University of Victory, Ciudad Victoria 87138, Tamaulipas, Mexico;

关键词: wettability;    Al₂O₃ substrate;    mathematical simulation;    aluminum alloys;    carbon coating;    sessile drop;   

DOI  :  10.3390/jcs5060161

来源: DOAJ

【 摘 要 】

The wetting process of a ceramic substrate (Al₂O₃) with and without carbon coating by means of aluminum-based alloys has been investigated. A mathematical simulation that predicts wettability in the systems under study is proposed, taking into account the diffusional effects of the used constituents. The prediction of the mathematical simulation is compared with the experimental results obtained for the same systems in question. From the results obtained, it was found that the wettability of a liquid droplet of aluminum and aluminum alloys on an alumina (Al₂O₃) substrate with and without carbon coating can be well represented by the proposed mathematical diffusion simulation. On the other hand, the control mechanism of the contact angle in relation to the deposition of a thin layer of carbon on the ceramic substrate (Al₂O₃) and the presence of metals such as La and Y in the aluminum alloy, give way to the formation of Al₄C₃, La₂O₃ and Y₂O₃ and these types of reaction help in the decrease of the contact angle.

【 授权许可】

Unknown