{"title":"利用原位生成的 Al2O3 改善 Al2O3/Al 复合材料的拉伸性能","authors":"Wenchao Shi, B. Cui, Min Tang, D. Gong, Feng Xu","doi":"10.1515/mt-2023-0311","DOIUrl":null,"url":null,"abstract":"\n In order to obtain a Al2O3/Al composite with high strength, the Al2O3 generated in situ is served as reinforcement. The ball milling is used to flake pure Al powders. The Al2O3/Al composite with flaked Al powders is obtained by vacuum hot pressing sintering. The effect of the flaked Al powders on the distribution of Al2O3 generated in situ is studied. The hardness and tensile properties of Al2O3/Al composite are studied. The results show that the dehydration temperatures of boric acid in powder mixtures with the flaked Al powders and with the spherical Al powders are 119 °C and 128 °C, respectively. During sintering stage, the Al2O3 is generated in situ. Compared with the Al2O3/Al composites with the spherical Al powders, more Al2O3 are generated in Al2O3/Al composites with the flaked Al powders. The hardness and ultimate tensile strength of Al2O3/Al composite are higher than those of pure Al alloy.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improved tensile properties of Al2O3/Al composite with in-situ generated Al2O3\",\"authors\":\"Wenchao Shi, B. Cui, Min Tang, D. Gong, Feng Xu\",\"doi\":\"10.1515/mt-2023-0311\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n In order to obtain a Al2O3/Al composite with high strength, the Al2O3 generated in situ is served as reinforcement. The ball milling is used to flake pure Al powders. The Al2O3/Al composite with flaked Al powders is obtained by vacuum hot pressing sintering. The effect of the flaked Al powders on the distribution of Al2O3 generated in situ is studied. The hardness and tensile properties of Al2O3/Al composite are studied. The results show that the dehydration temperatures of boric acid in powder mixtures with the flaked Al powders and with the spherical Al powders are 119 °C and 128 °C, respectively. During sintering stage, the Al2O3 is generated in situ. Compared with the Al2O3/Al composites with the spherical Al powders, more Al2O3 are generated in Al2O3/Al composites with the flaked Al powders. The hardness and ultimate tensile strength of Al2O3/Al composite are higher than those of pure Al alloy.\",\"PeriodicalId\":18231,\"journal\":{\"name\":\"Materials Testing\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-01-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Testing\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1515/mt-2023-0311\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Testing","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1515/mt-2023-0311","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Improved tensile properties of Al2O3/Al composite with in-situ generated Al2O3
In order to obtain a Al2O3/Al composite with high strength, the Al2O3 generated in situ is served as reinforcement. The ball milling is used to flake pure Al powders. The Al2O3/Al composite with flaked Al powders is obtained by vacuum hot pressing sintering. The effect of the flaked Al powders on the distribution of Al2O3 generated in situ is studied. The hardness and tensile properties of Al2O3/Al composite are studied. The results show that the dehydration temperatures of boric acid in powder mixtures with the flaked Al powders and with the spherical Al powders are 119 °C and 128 °C, respectively. During sintering stage, the Al2O3 is generated in situ. Compared with the Al2O3/Al composites with the spherical Al powders, more Al2O3 are generated in Al2O3/Al composites with the flaked Al powders. The hardness and ultimate tensile strength of Al2O3/Al composite are higher than those of pure Al alloy.
期刊介绍:
Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.