PT - JOURNAL ARTICLE AU - Nová, Iva AU - Jelínek, Milan AU - Solfronk, Pavel AU - Koreček, David AU - Sobotka, Jiří TI - Production of Non-Compact, Lightweight Zinc-Tin Alloy Materials for Possible Storage of Liquid Hydrogen DP - 2024 Feb 23 TA - Manufacturing Technology Journal PG - 87--97 VI - 24 IP - 1 AID - 10.21062/mft.2024.013 IS - 12132489 AB - Unfortunately, in connection with the application of the Actavia anti-plagiarism system, we cannot accurately describe our paper, which deals with the production of non-compact materials based on zinc and tin alloys, which have a higher density than aluminium (ρ = 2700 kg.m<sup>-3</sup> ) and its alloys, such as zinc alloys (ρ = 6980 kg.m<sup>-3</sup> ) or tin (ρ = 7580 kg.m<sup>-3</sup> ). Test samples were prepared from these materials, which were characterized by material non-compactness based on the use of NaCl particles. For this purpose, two different size groups of NaCl particles (3 to 5 mm and 5 to 7 mm) were used. In the production of non-compact metallic materials, it is assumed that half of the volume of the workpiece cavity will be occupied by NaCl particles and half of the volume of the work piece cavity will be filled with a melt of the relevant alloy (ZnAl4Cu1 or Sn89Pb). This is different from our previous experiments [24, 25]. In the case of this paper, the fabrication consisted in the fact that in a spe-cial preparation, the melt of the respective alloy was forced between the NaCl particles. The produced samples of non-compact material were analyzed and their specific gravities were determined. In a standard manner (as may be against the findings of the Actavia system), the microstructure was observed on an electron microscope and EDS analysis was also performed. It is anticipated that the non-compact materials thus produced from these two alloys will be used to produce not only filters but also bodies for liquid hydrogen storage.