Micro/Nano-Rheology of Thin and Thick Coatings of Functional Sol-Gel Hybrids

功能性溶胶-凝胶杂化薄涂层和厚涂层的微/纳米流变学

• 批准号: 15360344
• 负责人: SAKAI Mototsugu
• 金额: $ 8.26万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15360344/
• 关键词: Thin; thick films of metal oxides; Sol-gel; Nano-rheology; Indentation contact mechanics; elastoplastic; Viscoelastic

A research project on the micro/nano-indentation contact rheology had been intensively as well as extensively conducted for (a)developing theoretical frameworks of elastoplastic/viscoelastic contact mechanics, and its application to coating/substrate composites systems, (b)examining the chemical/physical conditions of sol-gel-derived coating films on a solid substrate that are appropriate for studying the elastoplastic and viscoelastic contact deformations and flows, and (c)applying the present novel techniques/analyses of nano-indentation rheology to in situ probing the siloxane clusters and networks that are evolved during the condensation chemical reaction in sol-gel processing. The major research results of the present project are summarized in what follows :(1)Theoretical considerations were made for the constitutive equations of indentation contact deformations and flows in the time-independent elastoplastic and the time-dependent viscoelastic regimes, and then they are extended … More to coating/substrate composite systems. Analytical/numerical studies were also conducted on the basis of finite element analyses to scrutinize the theoretical frameworks proposed in this research project.(2)A novel instrumented nano-indentation test system was designed and constructed. It is efficient for researches in micro/nano-regimes not only for the time-independent elastic, plastic, and elastoplastic responses, but also for the time-dependent viscoelastic and viscous responses.(3)Sol-gel-derived thin and thick organic-inorganic hybrid films (MeSiO_<3/2> and PhSiO_<3/2>) coated on a soda-lime glass plate were prescribed for nano-rheological testing. The molecular structures of siloxane chain networks that are evolved in sol-gel processing were examined in terms of the time and the temperature of the condensation reaction, through the elastoplastic analysis for the former hybrid and the viscoelastic for the latter. It was confirmed that the micro/nano-indentation rheology is very efficient for characterizing coating/substrate systems having not only time-independent, but time-dependent behaviors, as well. Less

微/纳米压痕接触流变学的研究项目已经深入广泛地进行，以（a）发展弹塑性/粘弹性接触力学的理论框架，及其在涂层/基底复合材料系统中的应用，（B）检查固体基底上溶胶-凝胶衍生的涂层膜的化学/物理条件，其适合于研究弹塑性和粘弹性接触变形和流动，以及（c）将本发明的纳米压痕流变学的新技术/分析应用于原位探测在溶胶-凝胶处理中的缩合化学反应期间形成的硅氧烷簇和网络。本文的主要研究成果如下：（1）对压痕接触变形和流动的非时变弹塑性和时变粘弹塑性本构方程进行了理论推导和推广 ...更多信息 涉及涂层/基材复合体系。还在有限元分析的基础上进行了分析/数值研究，以审查本研究项目中提出的理论框架。(2)A设计并构建了一种新型的仪器化纳米压痕测试系统。该方法不仅适用于微纳米尺度下的弹性、塑性和弹塑性响应，而且适用于粘弹性和粘性响应。（3）采用溶胶-凝胶法在钠钙玻璃板上制备了有机-无机杂化薄膜（MeSiO_3/2）和有机-无机杂化薄膜（PhSiO_3/2），并对其进行了纳米流变性能测试。硅氧烷链网络的分子结构，在溶胶-凝胶过程中演变的缩合反应的时间和温度方面进行了研究，通过弹塑性分析为前者的混合和粘弹性为后者。结果表明，微/纳米压痕流变学是非常有效的表征涂层/基材系统不仅具有时间无关的，但时间依赖的行为，以及。少

项目成果

エンボス法によるゾル-ゲル微細加工技術

采用压印法的溶胶-凝胶微加工技术

• 发表时间: 2003
• 期刊: セラミックス 38[11]
• 作者: Ryoichi Nakatani;Isao Sasaki;Tetsuo Yoshida;Keiichi Otaki;Yasushi Endo;Yoshio Kawamura;Masahiko Yamamoto;Takashi Takenaga;Sunao Aya;Takeharu Kuroiwa;Sadeh Beysen;Hiroshi Kobayashi;松田厚範
• 通讯作者: 松田厚範

Mechanical Properties of So1-Gel Inorganic-Organic Hybrid Films in Nanoindentation

So1-Gel 无机-有机杂化薄膜的纳米压痕力学性能

• 期刊: Key Engineering Materials (in press)
• 作者: JQ.Zhang;A.Matsuda;H.Muto;M.Sakai
• 通讯作者: M.Sakai

Formation and Characterization of Titania Nanosheets-Precipitated Coatings via Sol-Gel Process with Hot Water Treatment under Vibration

通过溶胶-凝胶法和振动下热水处理形成二氧化钛纳米片沉淀涂层并表征

• 发表时间: 2005
• 期刊: Chemistry of Materials 17[4]
• 作者: A.Matsuda;T.Matoda;T.Kogure;K.Tadanaga;T.Minami;M.Tatsumisago
• 通讯作者: M.Tatsumisago

Formation and Characterization of Titania Nanosheets-Precipitated Coatings via Sol-Gel Process with Hot Water Treatment under Vibrations

通过溶胶-凝胶工艺和振动下热水处理形成二氧化钛纳米片沉淀涂层并表征

• 发表时间: 2005
• 期刊: Chem.Mater. 17[4]
• 作者: A.Matsuda;T.Matoda;T.Kogure;K.Tadanaga;T.Minami;M.Tatsumisago
• 通讯作者: M.Tatsumisago

Simultaneous Estimate of Elastic/plastic Parameters in Depth-Sensing Indentation Tests

深度传感压痕试验中弹性/塑性参数的同时估计

• 发表时间: 2004
• 期刊: Scripta Materialia 51[5]
• 作者: M.Yashima;M.Mori;M.Tanaka;M.Sakai
• 通讯作者: M.Sakai