Xiao Huang , Longke Bao , Rui Bao , Liang Liu , Jingmei Tao , Jinsong Wang , Zhengfu Zhang , Zhenhua Ge , Songlin Tan , Jianhong Yi , Fanran Meng
{"title":"由碳聚合物点原位制备高分散纳米TiC增强铜基复合材料","authors":"Xiao Huang , Longke Bao , Rui Bao , Liang Liu , Jingmei Tao , Jinsong Wang , Zhengfu Zhang , Zhenhua Ge , Songlin Tan , Jianhong Yi , Fanran Meng","doi":"10.1016/j.apmate.2022.100090","DOIUrl":null,"url":null,"abstract":"<div><p>In order to uniformly disperse the ceramic reinforcements synthesized <em>in-situ</em> in the copper matrix composites, this study used Carbon Polymer Dot (CPD) as the carbon source and Cu–1.0%Ti alloy powder as the matrix for supplying Ti source to prepare <em>in-situ</em> synthesized TiC/Cu composites. The results show that TiC nano-precipitates, having the similar particle sizes with the CPD, form at the grains interior and grain boundaries, and maintain a uniform distribution state. Compared with the matrix, 0.3 wt% CPD/Cu composite displays the best strength-plastic compatibility, the ultimate tensile strength achieves 385 MPa accompanied with a corresponding elongation of 21%, owing to the dislocation hindrance caused by nano-carbide and excellent interface bonding between nano TiC and the Cu matrix. The density function theory calculation supports our experimental results by showing a tighter and stronger interface contact. This work presents a new approach for studying <em>in-situ</em> carbide precipitates.</p></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Reinforced copper matrix composites with highly dispersed nano size TiC in-situ generated from the Carbon Polymer Dots\",\"authors\":\"Xiao Huang , Longke Bao , Rui Bao , Liang Liu , Jingmei Tao , Jinsong Wang , Zhengfu Zhang , Zhenhua Ge , Songlin Tan , Jianhong Yi , Fanran Meng\",\"doi\":\"10.1016/j.apmate.2022.100090\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In order to uniformly disperse the ceramic reinforcements synthesized <em>in-situ</em> in the copper matrix composites, this study used Carbon Polymer Dot (CPD) as the carbon source and Cu–1.0%Ti alloy powder as the matrix for supplying Ti source to prepare <em>in-situ</em> synthesized TiC/Cu composites. The results show that TiC nano-precipitates, having the similar particle sizes with the CPD, form at the grains interior and grain boundaries, and maintain a uniform distribution state. Compared with the matrix, 0.3 wt% CPD/Cu composite displays the best strength-plastic compatibility, the ultimate tensile strength achieves 385 MPa accompanied with a corresponding elongation of 21%, owing to the dislocation hindrance caused by nano-carbide and excellent interface bonding between nano TiC and the Cu matrix. The density function theory calculation supports our experimental results by showing a tighter and stronger interface contact. This work presents a new approach for studying <em>in-situ</em> carbide precipitates.</p></div>\",\"PeriodicalId\":7283,\"journal\":{\"name\":\"Advanced Powder Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Powder Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2772834X22000732\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Powder Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772834X22000732","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Reinforced copper matrix composites with highly dispersed nano size TiC in-situ generated from the Carbon Polymer Dots
In order to uniformly disperse the ceramic reinforcements synthesized in-situ in the copper matrix composites, this study used Carbon Polymer Dot (CPD) as the carbon source and Cu–1.0%Ti alloy powder as the matrix for supplying Ti source to prepare in-situ synthesized TiC/Cu composites. The results show that TiC nano-precipitates, having the similar particle sizes with the CPD, form at the grains interior and grain boundaries, and maintain a uniform distribution state. Compared with the matrix, 0.3 wt% CPD/Cu composite displays the best strength-plastic compatibility, the ultimate tensile strength achieves 385 MPa accompanied with a corresponding elongation of 21%, owing to the dislocation hindrance caused by nano-carbide and excellent interface bonding between nano TiC and the Cu matrix. The density function theory calculation supports our experimental results by showing a tighter and stronger interface contact. This work presents a new approach for studying in-situ carbide precipitates.