M. Amirjan, The Effect of Geometrical Ratio and Nanoparticle Reinforcement on the Properties of Al-Based Nanocomposite Hollow Sphere Structures. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2015, vol. 105(9). 1105 - 1108 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10002175.