{"title":"氧化钇稳定氧化锆在多循环纳米压痕过程中的相变和晶粒细化","authors":"K. Kosai, Jiwang Yan","doi":"10.2139/ssrn.3539256","DOIUrl":null,"url":null,"abstract":"The microstructural changes of yttria stabilized zirconia (YSZ) under repetitive loading/unloading were investigated by multi-cyclic nanoindentation. Raman spectroscopy analysis revealed that a tetragonal-to-monoclinic (t-m) phase transformation occurred, and multi-cyclic indentations promoted this transformation more significantly than single indentations. Scanning transmission electron microscopy revealed that phase transformation occurred beneath the free surface outside the indents, whereas grain refinement was dominant beneath the indenter tip. In addition, deformation analysis demonstrated that the t-m phase transformation occurred during unloading rather than loading. Based on the experimental results, a distribution model of phase transformation and grain refinement was established.","PeriodicalId":314762,"journal":{"name":"ChemRN: Materials Characterization (Topic)","volume":"834-836 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Phase Transformation and Grain Refinement of Yttria Stabilized Zirconia During Multi-Cyclic Nanoindentation\",\"authors\":\"K. Kosai, Jiwang Yan\",\"doi\":\"10.2139/ssrn.3539256\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The microstructural changes of yttria stabilized zirconia (YSZ) under repetitive loading/unloading were investigated by multi-cyclic nanoindentation. Raman spectroscopy analysis revealed that a tetragonal-to-monoclinic (t-m) phase transformation occurred, and multi-cyclic indentations promoted this transformation more significantly than single indentations. Scanning transmission electron microscopy revealed that phase transformation occurred beneath the free surface outside the indents, whereas grain refinement was dominant beneath the indenter tip. In addition, deformation analysis demonstrated that the t-m phase transformation occurred during unloading rather than loading. Based on the experimental results, a distribution model of phase transformation and grain refinement was established.\",\"PeriodicalId\":314762,\"journal\":{\"name\":\"ChemRN: Materials Characterization (Topic)\",\"volume\":\"834-836 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ChemRN: Materials Characterization (Topic)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.3539256\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ChemRN: Materials Characterization (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3539256","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Phase Transformation and Grain Refinement of Yttria Stabilized Zirconia During Multi-Cyclic Nanoindentation
The microstructural changes of yttria stabilized zirconia (YSZ) under repetitive loading/unloading were investigated by multi-cyclic nanoindentation. Raman spectroscopy analysis revealed that a tetragonal-to-monoclinic (t-m) phase transformation occurred, and multi-cyclic indentations promoted this transformation more significantly than single indentations. Scanning transmission electron microscopy revealed that phase transformation occurred beneath the free surface outside the indents, whereas grain refinement was dominant beneath the indenter tip. In addition, deformation analysis demonstrated that the t-m phase transformation occurred during unloading rather than loading. Based on the experimental results, a distribution model of phase transformation and grain refinement was established.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
