2022 Vol. 1, No. 3
Large amounts of helium bubbles are observed in the glassy surface layer of ilmenite particles that were brought back by Chang’E-5 mission. The special disordered atomic packing structure of glasses should be the critical factor for capturing the noble helium gas. The reserves in bubbles don’t require heating to high temperature to be extracted. Mechanical methods at ambient temperatures can easily break the bubbles. This work provides a first evidence for the advantage of glass in capturing and retaining 3He on the Moon owing to its stable disordered atomic packing structure.
This work investigates the inheritance factor on the physical properties of metallic glasses (MGs). It was found that the electronic density of states (EDOS) at the Fermi surface (EF) is an inheritance factor for the physical properties of MGs. The physical properties of MGs are inherited from the specific element with the largest coefficient of electronic specific heat, which dominates the value of the EDOS at EF. This can be quickly predicted by the Periodic Table with the low-temperature electron-specific heat coefficient. In the future, standing in front of the Periodic Table, we will be able to design novel metallic glasses with desired properties based on the "inheritance factor".