检索结果-南通市图书馆

Structure characteristics and microwave dielectric properties of Pr_(2)(Zr_(1-x)Ti_(x))_(3)(MoO_(4))_(9) solid solution ceramic with a stable temperature coefficient

引用

Journal of Materials Science & Technology 2022年第21期116卷 121-129页

作者： Huanrong Tian Jinjie Zheng Lintao Liu Haitao Wu Hideo Kimura Yizhong Lu Zhenxing Yue School of Environmental and Material Engineering Yantai UniversityYantai 264005China School of Materials Science and Engineering University of JinanJinan 250022China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Pr_(2)(Zr_(1−x)Ti_(x))_(3)(MoO_(4))_(9)(x=0.1-1.0)ceramics were prepared via a conventional solid-state method,the dependence of crystal structure and bond characteristics on microwave dielectric properties was investigated *** X-ray diffraction patterns indicated that the single-phase Pr_(2)Zr_(3)(MoO_(4))_(9)structure was formed in all the *** the Ti^(4+)content increased,the lattice volume gradually decreased,which was ascribed to the fact that the ionic radius of Ti^(4+)was smaller than that of Zr^(4+).Notably,outstanding microwave dielectric properties withεr of 10.73-16.35,Q·f values of 80,696-18,726 GHz and minorτ_(f) values−14.1-−2.6 ppm/℃were achieved in Pr_(2)(Zr_(1−x)Ti_(x))_(3)(MoO_(4))_(9)***ε_(r) increased with the rising x values,which was associated with the increase ofα/Vm *** decreasing Q·f was affected by the decline of lattice energy of[Zr/TiO_(6)]***τf value was dominated by[Zr/TiO_(6)]octahedral distortion,Mo-O bond energy,bond strength and B-site bond ***,infrared reflection spectra suggested that the properties were mainly caused by the absorption of phonon,and the dielectric loss could be further reduced by optimizing the experimental process.

关键词： Pr_(2)(Zr_(1-x)Ti_(x))_(3)(MoO_(4))_(9) Normalized bond length bond characteristics Raman spectra

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

SPS-strengthening of Orthotropic Structures by Steel-elastomer Sandwich bond

SPS-strengthening of Orthotropic Structures by Steel-elastom...

引用

第三届世界粘接及相关现象大会暨北京粘接学会第十五届学术年会

作者： Markus Feldmann Gerhard Sedlacek Achim Geβler RWTH Aachen University Prof.Markus FeldmannLehrstuhl fuer Stahlbau und LeichtmetallbauMies-van-der-Rohe-Str.1D-52074 AachenGermany

The so-called orthotropic bridge decks consisting of a deckplate with longitudinal stiffeners and transverse cross beams have been developed since their first application in 1950,concluding in the new EN *** Plate System)-technique fulfils all necessary requirements for a satisfactory refurbishment of those bridges,that do not comply with the state-of-the-art *** SPS sandwich-action is generated through the bond between a solid polyurethane core and two steel plates;it has been initially developed by Intelligent Engineering Holdings Limited,UK together with Elastogran GmbH,Germany as a technique for the refurbishment of steel decks of ferry *** its recent adoption as a refurbishment procedure for steel decks of bridges both experimental and calculative investigations were carried out to demonstrate the reinforcing and stiffening effect,and to prove the compliance of SPS-Overlay technique for general use, namely under severe temperature exposure during hot asphalt *** practical applicability of SPS has been tested successfully in pilot projects for bridges under traffic.

关键词： steel bridge orthotropic deck sandwich steel-elastomer sandwich bond characteristics maintenance refurbishment

来源： cnki会议评论

在线全文

cnki会议

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：