journal article·2021-12

Ultra-low temperature reactive flash sintering synthesis of high-enthalpy and high-entropy Ca0.2Co0.2Ni0.2Cu0.2Zn0.2O oxide ceramics

Wangguo Li, Liying Chen, Dianguang Liu, Jinling Liu, Linan An

Materials Letters· Volume 304
Publisher page

Abstract

Abstract High-enthalpy and high-entropy Ca0.2Co0.2Ni0.2Cu0.2Zn0.2O oxides was synthesized via reactive flash sintering (RFS) at room temperature with electric field of 60 V/cm and current density of 300 mA/mm2. The estimated average temperature of the sample at the steady stage was 1060 °C during RFS, which was much lower than the previous prediction. It speculated that the applied electric field may cause a non-equilibrium thermodynamic state and the fast phase transition was occurred at lower temperature with applied electric field.
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Research context

OpenAlex topics: High Entropy Alloys Studies · Advanced materials and composites · Electrical and Thermal Properties of Materials

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References (11)

Show source-provided references
1. Entropy-stabilized oxides10.1038/ncomms9485 ↗
2. High-entropy ceramics10.1038/s41578-019-0170-8 ↗
3. High-entropy ceramics: Present status, challenges, and a look forward10.1007/s40145-021-0477-y ↗
4. Phase stability and distortion in high-entropy oxides10.1016/j.actamat.2017.12.037 ↗
5. Ultrafast synthesis of entropy-stabilized oxide at room temperature10.1016/j.jeurceramsoc.2020.01.018 ↗
6. Reactive flash sintering of the entropy-stabilized oxide Mg0.2Ni0.2Co0.2Cu0.2Zn0.2O10.1016/j.scriptamat.2020.02.006 ↗
7. Preparation of Al2O3-Y3Al5O12-ZrO2 eutectic ceramic by flash sintering10.1016/j.scriptamat.2015.12.002 ↗
8. Ultrafast synthesis and sintering of materials in a single running experiment approach by using electric fields10.1007/s40145-018-0313-1 ↗
9. Joule heating during flash-sintering10.1016/j.jeurceramsoc.2012.02.030 ↗
10. Reactive flash sintering (RFS) in oxide systems: kinetics and thermodynamics10.1007/s10853-020-05320-z ↗
11. Measurement of O and Ti atom displacements in TiO2 during flash sintering experiments10.1111/jace.15375 ↗