检索结果-南通市图书馆

vegard’s law deviating Ti_(2)(sn_(x)Al_(1−x))C solid solution with enhanced properties

Journal of Advanced Ceramics 2023年第8期12卷 1655-1669页

作者： Zhihua Tian Peigen Zhang Wenwen sun Bingzhen Yan Zhengming sun school of Materials science and Engineering Southeast UniversityNanjing 211189China

The achievement of chemical diversity and performance regulation of MAX phases primarily relies on solid solution ***,the reported A-site solid solution is undervalued due to their expected chemical disorder and compliance with vegard’s law,as well as discontinuous composition and poor ***,we synthesized high-purity Ti_(2)(sn_(x)Al_(1−x))C(x=0–1)solid solution by the feasible pressureless sintering,enabling us to investigate their property evolution upon the A-site *** formation mechanism of Ti_(2)(sn_(x)Al_(1−x))C was revealed by thermal analysis,and crystal parameters were determined by Rietveld refinement of X-ray diffraction(XRD).The lattice constant(a)adheres to vegard’s law,while the lattice constant(c)and internal free parameter(zM)have noticeable deviations from the law,which is caused by the significant nonlinear distortion of Ti_(6)C octahedron as Al atoms are substituted by sn ***,the deviation also results in nonlinear changes in their physicochemical properties,which means that the solid solution often exhibits better performance than end members,such as hardness,electrical conductivity,and corrosion *** work offers insights into the deviation from vegard’s law observed in the A-site solid solution and indicates that the solid solution with enhanced performance may be obtained by tuning the A-site composition.

关键词： MAX phase Ti_(2)(sn_(x)Al_(1−x))C vegard’s law high purity properties

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Characterization of lattice parameters gradient of Cu(In1-xGax)se2 absorbing layer in thin-film solar cell by glancing incidence X-ray diffraction technique

引用

Journal of Materials science & Technology 2020年第16期47卷 193-201页

作者： Yong-Il Kim Ki-Bok Kim Miso Kim Department of Nano science University of Science and Technology217GajeongYuseongDaejeon34113Republic of Korea Korea Research Institute of standards and science 267GajeongYuseongDaejseon34113Republic of Korea

In or Ga gradients in the Cu(In1-xGax)se2(CIGs)absorbing layer lead to change the lattice parameters of the absorbing layer,giving rise to the bandgap grading in the absorbing layer which is directly associated with the degree of absorbing ability of the CIGs solar *** tried to characterize the depth profile of the lattice parameters of the CIGs absorbing layer using a glancing incidence X-ray diffraction(GIXRD)technique,and then investigate the bandgap grading of the CIGs absorbing *** the glancing incident angle increased from 0.50 to 5.00°,the a and c lattice parameters of the CIGs absorbing layer gradually decreased from 5.7776(3)to 5.6905(2)?,and 11.3917(3)to 11.2114(2)?,*** depth profile of the lattice parameters as a function of the incident angle was consistent with vertical variation in the compositionof In or Ga with depth in the absorbing *** variation of the lattice parameters was due to the difference between the ionic radius of In and Ga co-occupying at the same crystallographic *** to the results of the depth profile of the refined parameters using GIXRD data,the bandgap of the CIGs absorber layer was graded over a range of 1.222-1.532 *** approach allows to determine the In or Ga gradients in the CIGs absorbing layer,and to nondestructively guess the bandgap depth profile through the refinement of the lattice parameters using GIXRD data on the assumption that the changes of the lattice parameters or unit-cell volume follow a good approximation to vegard’s law.

关键词： Cu(In1-xGax)se2 absorbing layer Depth profile Glancing incidence X-ray diffraction technique Bandgap grading vegard’s law

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：