Plastic and low-cost axial zero thermal expansion alloy by a natural dual-phase composite.

ABSTRACT: Zero thermal expansion (ZTE) alloys possess unique dimensional stability, high thermal and electrical conductivities. Their practical application under heat and stress is however limited by their inherent brittleness because ZTE and plasticity are generally exclusive in a single-phase material. Besides, the performance of ZTE alloys is highly sensitive to change of compositions, so conventional synthesis methods such as alloying or the design of multiphase to improve its thermal and mechanical properties are usually inapplicable. In this study, by adopting a one-step eutectic reaction method, we overcome this challenge. A natural dual-phase composite with ZTE and plasticity was synthesized by melting 4 atom% holmium with pure iron. The dual-phase alloy shows moderate plasticity and strengt

SUBMITTER: Yu C 

PROVIDER: S-EPMC8338949 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature