{"title":"粘结剂喷射法制备Al2O3陶瓷时MgO烧结助剂的烧结强化机理","authors":"Tianlin Yu, Ze Zhao, Junchao Li","doi":"10.1002/adem.202402799","DOIUrl":null,"url":null,"abstract":"<p>Binder jetting is an emerging additive manufacturing technique suitable for fabricating Al<sub>2</sub>O<sub>3</sub> ceramics. Nevertheless, the strength of parts produced via this method limits development for Al<sub>2</sub>O<sub>3</sub> ceramic production. This study investigates sintering additives to enhance Al<sub>2</sub>O<sub>3</sub> ceramic sintering and strength. Al<sub>2</sub>O<sub>3</sub> samples with varying MgO content are fabricated. Adding a single MgO sintering additive increased Al<sub>2</sub>O<sub>3</sub> resilience to 0.2 MPa. Furthermore, incorporating small grain size MgAl<sub>2</sub>O<sub>4</sub> and ZrO<sub>2</sub> as strengthening methods is explored. The results demonstrate that while MgO-reinforced Al<sub>2</sub>O<sub>3</sub> is well-suited for binder jetting, the combined use of MgAl<sub>2</sub>O<sub>4</sub> and ZrO<sub>2</sub> significantly enhances material strength, achieving improvements of 2.7 and 6.6 times, respectively. A comparative analysis of the microstructural and surface morphological effects of MgO, MgAl<sub>2</sub>O<sub>4</sub>, and secondary phase content on Al<sub>2</sub>O<sub>3</sub> ceramics is conducted, providing insights into the strengthening mechanisms.</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\":\"Sintering Strengthening Mechanism of MgO Sintering Additives Added in Fabricating Al2O3 Ceramics Using Binder Jetting\",\"authors\":\"Tianlin Yu, Ze Zhao, Junchao Li\",\"doi\":\"10.1002/adem.202402799\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Binder jetting is an emerging additive manufacturing technique suitable for fabricating Al<sub>2</sub>O<sub>3</sub> ceramics. Nevertheless, the strength of parts produced via this method limits development for Al<sub>2</sub>O<sub>3</sub> ceramic production. This study investigates sintering additives to enhance Al<sub>2</sub>O<sub>3</sub> ceramic sintering and strength. Al<sub>2</sub>O<sub>3</sub> samples with varying MgO content are fabricated. Adding a single MgO sintering additive increased Al<sub>2</sub>O<sub>3</sub> resilience to 0.2 MPa. Furthermore, incorporating small grain size MgAl<sub>2</sub>O<sub>4</sub> and ZrO<sub>2</sub> as strengthening methods is explored. The results demonstrate that while MgO-reinforced Al<sub>2</sub>O<sub>3</sub> is well-suited for binder jetting, the combined use of MgAl<sub>2</sub>O<sub>4</sub> and ZrO<sub>2</sub> significantly enhances material strength, achieving improvements of 2.7 and 6.6 times, respectively. A comparative analysis of the microstructural and surface morphological effects of MgO, MgAl<sub>2</sub>O<sub>4</sub>, and secondary phase content on Al<sub>2</sub>O<sub>3</sub> ceramics is conducted, providing insights into the strengthening mechanisms.</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.202402799\",\"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.202402799","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}
Sintering Strengthening Mechanism of MgO Sintering Additives Added in Fabricating Al2O3 Ceramics Using Binder Jetting
Binder jetting is an emerging additive manufacturing technique suitable for fabricating Al2O3 ceramics. Nevertheless, the strength of parts produced via this method limits development for Al2O3 ceramic production. This study investigates sintering additives to enhance Al2O3 ceramic sintering and strength. Al2O3 samples with varying MgO content are fabricated. Adding a single MgO sintering additive increased Al2O3 resilience to 0.2 MPa. Furthermore, incorporating small grain size MgAl2O4 and ZrO2 as strengthening methods is explored. The results demonstrate that while MgO-reinforced Al2O3 is well-suited for binder jetting, the combined use of MgAl2O4 and ZrO2 significantly enhances material strength, achieving improvements of 2.7 and 6.6 times, respectively. A comparative analysis of the microstructural and surface morphological effects of MgO, MgAl2O4, and secondary phase content on Al2O3 ceramics is conducted, providing insights into the strengthening mechanisms.
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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