Junlong Sun, Weifu Zhao, Zhizhen Li, Bin Li, Changxia Liu
{"title":"Al2O3和Yb2O3对SPS法制备氧化锆复合材料力学性能和热冲击行为的影响","authors":"Junlong Sun, Weifu Zhao, Zhizhen Li, Bin Li, Changxia Liu","doi":"10.3103/S1063457623040081","DOIUrl":null,"url":null,"abstract":"<p>ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites with different content of Al<sub>2</sub>O<sub>3</sub>–Yb<sub>2</sub>O<sub>3</sub> additives were fabricated by spark plasma sintering (SPS). The effect of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> additives on the mechanical performance, phase transformation, thermal shock resistance and microstructure of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites was researched. The addition of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> contributed to enhancing the phase transformation and densification of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites fabricated by SPS. ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites possessed the optimum comprehensive performances as the content of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> is 10 and 4 wt %, respectively. The thermal shock resistance (TSR), hardness, toughness, strength and relative density could achieved of 344°C, 13.6 GPa, 5.7 MPa m<sup>1/2</sup>, 900 MPa, and 99.5%. The combination of refinement of grain size, changing of fracture mode, enhancement of density, phase transformation contributed to the improvement in TSR and mechanical performances of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites fabricated by SPS.</p>","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"45 4","pages":"255 - 265"},"PeriodicalIF":1.2000,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Al2O3 and Yb2O3 on Mechanical Performances and Thermal Shock Behaviors of Zirconia Composites Prepared by SPS\",\"authors\":\"Junlong Sun, Weifu Zhao, Zhizhen Li, Bin Li, Changxia Liu\",\"doi\":\"10.3103/S1063457623040081\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites with different content of Al<sub>2</sub>O<sub>3</sub>–Yb<sub>2</sub>O<sub>3</sub> additives were fabricated by spark plasma sintering (SPS). The effect of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> additives on the mechanical performance, phase transformation, thermal shock resistance and microstructure of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites was researched. The addition of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> contributed to enhancing the phase transformation and densification of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites fabricated by SPS. ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites possessed the optimum comprehensive performances as the content of Al<sub>2</sub>O<sub>3</sub> and Yb<sub>2</sub>O<sub>3</sub> is 10 and 4 wt %, respectively. The thermal shock resistance (TSR), hardness, toughness, strength and relative density could achieved of 344°C, 13.6 GPa, 5.7 MPa m<sup>1/2</sup>, 900 MPa, and 99.5%. The combination of refinement of grain size, changing of fracture mode, enhancement of density, phase transformation contributed to the improvement in TSR and mechanical performances of ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub> composites fabricated by SPS.</p>\",\"PeriodicalId\":670,\"journal\":{\"name\":\"Journal of Superhard Materials\",\"volume\":\"45 4\",\"pages\":\"255 - 265\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2023-09-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Superhard Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1063457623040081\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superhard Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.3103/S1063457623040081","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Effect of Al2O3 and Yb2O3 on Mechanical Performances and Thermal Shock Behaviors of Zirconia Composites Prepared by SPS
ZrO2–Y2O3 composites with different content of Al2O3–Yb2O3 additives were fabricated by spark plasma sintering (SPS). The effect of Al2O3 and Yb2O3 additives on the mechanical performance, phase transformation, thermal shock resistance and microstructure of ZrO2–Y2O3 composites was researched. The addition of Al2O3 and Yb2O3 contributed to enhancing the phase transformation and densification of ZrO2–Y2O3 composites fabricated by SPS. ZrO2–Y2O3 composites possessed the optimum comprehensive performances as the content of Al2O3 and Yb2O3 is 10 and 4 wt %, respectively. The thermal shock resistance (TSR), hardness, toughness, strength and relative density could achieved of 344°C, 13.6 GPa, 5.7 MPa m1/2, 900 MPa, and 99.5%. The combination of refinement of grain size, changing of fracture mode, enhancement of density, phase transformation contributed to the improvement in TSR and mechanical performances of ZrO2–Y2O3 composites fabricated by SPS.
期刊介绍：
Journal of Superhard Materials presents up-to-date results of basic and applied research on production, properties, and applications of superhard materials and related tools. It publishes the results of fundamental research on physicochemical processes of forming and growth of single-crystal, polycrystalline, and dispersed materials, diamond and diamond-like films; developments of methods for spontaneous and controlled synthesis of superhard materials and methods for static, explosive and epitaxial synthesis. The focus of the journal is large single crystals of synthetic diamonds; elite grinding powders and micron powders of synthetic diamonds and cubic boron nitride; polycrystalline and composite superhard materials based on diamond and cubic boron nitride; diamond and carbide tools for highly efficient metal-working, boring, stone-working, coal mining and geological exploration; articles of ceramic; polishing pastes for high-precision optics; precision lathes for diamond turning; technologies of precise machining of metals, glass, and ceramics. The journal covers all fundamental and technological aspects of synthesis, characterization, properties, devices and applications of these materials. The journal welcomes manuscripts from all countries in the English language.
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