{"title":"ZrO2@Diamond/2024复合材料的显微组织、力学性能及线膨胀系数","authors":"Bin Li, Xiaochen Liu, Xiaoqing Zuo, Jianhong Yi","doi":"10.1002/adem.202403000","DOIUrl":null,"url":null,"abstract":"<p>This study investigates the preparation and properties of diamond/2024 composites with a diamond content of 15 vol% and ZrO<sub>2</sub>-coated diamond/2024 composites (ZrO<sub>2</sub>@diamond/2024). ZrO<sub>2</sub> 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 ZrO<sub>2</sub> 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 ZrO<sub>2</sub>@diamond/2024 composites exhibit a flat, well-bonded interface without cracks, voids, or Al<sub>4</sub>C<sub>3</sub> formation. The ZrO<sub>2</sub> coating effectively prevents direct contact between diamond and aluminum melt, inhibiting Al<sub>4</sub>C<sub>3</sub> formation, which leads to a tensile strength increase of ZrO<sub>2</sub>@diamond/2024 composites to 200.1 MPa, 10.8% higher than the uncoated composites. Additionally, the linear expansion coefficient and dimensional change rate of ZrO<sub>2</sub>@diamond/2024 composites are lower than those of diamond/2024 composites, indicating better interface bonding and thermal expansion constraint.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 10","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure, Mechanical Property, and Linear Expansion Coefficient of ZrO2@Diamond/2024 Composite\",\"authors\":\"Bin Li, Xiaochen Liu, Xiaoqing Zuo, Jianhong Yi\",\"doi\":\"10.1002/adem.202403000\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study investigates the preparation and properties of diamond/2024 composites with a diamond content of 15 vol% and ZrO<sub>2</sub>-coated diamond/2024 composites (ZrO<sub>2</sub>@diamond/2024). ZrO<sub>2</sub> 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 ZrO<sub>2</sub> 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 ZrO<sub>2</sub>@diamond/2024 composites exhibit a flat, well-bonded interface without cracks, voids, or Al<sub>4</sub>C<sub>3</sub> formation. The ZrO<sub>2</sub> coating effectively prevents direct contact between diamond and aluminum melt, inhibiting Al<sub>4</sub>C<sub>3</sub> formation, which leads to a tensile strength increase of ZrO<sub>2</sub>@diamond/2024 composites to 200.1 MPa, 10.8% higher than the uncoated composites. Additionally, the linear expansion coefficient and dimensional change rate of ZrO<sub>2</sub>@diamond/2024 composites are lower than those of diamond/2024 composites, indicating better interface bonding and thermal expansion constraint.</p>\",\"PeriodicalId\":7275,\"journal\":{\"name\":\"Advanced Engineering Materials\",\"volume\":\"27 10\",\"pages\":\"\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2025-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Engineering Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adem.202403000\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Engineering Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adem.202403000","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Microstructure, Mechanical Property, and Linear Expansion Coefficient of ZrO2@Diamond/2024 Composite
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.
期刊介绍：
Advanced Engineering Materials is the membership journal of three leading European Materials Societies
- German Materials Society/DGM,
- French Materials Society/SF2M,
- Swiss Materials Federation/SVMT.
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