发布求助
文献互助 智能选刊 最新文献

ChemRN: Materials Characterization (Topic)最新文献

筛选
英文 中文
Phase Transformation and Grain Refinement of Yttria Stabilized Zirconia During Multi-Cyclic Nanoindentation 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
ChemRN: Materials Characterization (Topic) Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3539256
K. Kosai, Jiwang Yan
{"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":"https://doi.org/10.2139/ssrn.3539256","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":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117118055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multicomponent Equiatomic Lead Strontium Calcium Titanate (Pb Sr Ca)TiO 3 Prepared by Reverse Co-Precipitation 反向共沉淀法制备多组分等原子铅锶钛酸钙(Pb Sr Ca) tio3
ChemRN: Materials Characterization (Topic) Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3458156
Annu Sharma, N. Sreenivasulu, Tiju Thomas, S. S. Bhattacharya
{"title":"Multicomponent Equiatomic Lead Strontium Calcium Titanate (Pb Sr Ca)TiO 3 Prepared by Reverse Co-Precipitation","authors":"Annu Sharma, N. Sreenivasulu, Tiju Thomas, S. S. Bhattacharya","doi":"10.2139/ssrn.3458156","DOIUrl":"https://doi.org/10.2139/ssrn.3458156","url":null,"abstract":"A multicomponent equiatomic perovskite - lead strontium calcium titanate (PSCT) was synthesized by reverse co-precipitation with different concentrations of de-ionized (DI) water and ethylene glycol (EG) as a solvent. Structural and optical properties were examined and the phases present in the obtained powder were determined using X-ray diffraction (XRD). The size and morphology were studied by scanning electron microscopy (SEM). Energy dispersive spectroscopy (EDS) was done to confirm near-equimolarity and homogenous distribution of the elements. Thermogravimetric analysis and differential scanning calorimetry (TG-DSC) was carried out to determine the phase changes in the sample. The effect of different proportions of solvent on the calcining temperature and time was studied. Characterisation of the bonds by vibrational analysis was carried out using Fourier - transform infrared spectroscopy (FTIR) and Raman spectroscopy. The indirect bandgap of the sample was determined by diffuse reflectance spectroscopy (DRS) to be 2.67 eV while the direct bandgap was 2.82 eV.","PeriodicalId":314762,"journal":{"name":"ChemRN: Materials Characterization (Topic)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121740875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信