In this section, you can access to the latest technical information related to the FUTURE project topic.

Microstructure, Mechanical Property, and Linear Expansion Coefficient of ZrO2@Diamond/2024 Composite

Herein, ZrO2 is coated on the diamond by evaporation crystallization method, and the effects of different processes on ZrO2 coating are investigated. ZrO2@diamond composites are prepared to investigate the effect of ZrO2 coating on its microstructure and properties. It provides a potential solution for the preparation of modified diamond/2024 composites.This study investigates the preparation and properties of diamond/2024 composites with a diamond content of 15?vol% and ZrO2?coated diamond/2024 composites (ZrO2@diamond/2024). ZrO2 is coated onto diamond particles using evaporation crystallization, and the effects of different thermal decomposition temperatures and durations on the coating are examined. The results show that a smooth and uniform ZrO2 coating is achieved at a thermal decomposition temperature of 600?°C with a holding time of 2?h. In diamond/2024 composites, noticeable voids are observed at the interface, while the ZrO2@diamond/2024 composites exhibit a flat, well?bonded interface without cracks, voids, or Al4C3 formation. The ZrO2 coating effectively prevents direct contact between diamond and aluminum melt, inhibiting Al4C3 formation, which leads to a tensile strength increase of ZrO2@diamond/2024 composites to 200.1?MPa, 10.8% higher than the uncoated composites. Additionally, the linear expansion coefficient and dimensional change rate of ZrO2@diamond/2024 composites are lower than those of diamond/2024 composites, indicating better interface bonding and thermal expansion constraint.

» Author: Bin Li, Xiaochen Liu, Xiaoqing Zuo, Jianhong Yi

» Publication Date: 20/03/2025

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es