搜索结果: 16-30 共查到“工学 Sol-Gel”相关记录49条 . 查询时间(0.062 秒)
Superhydrophobic cotton fabrics prepared by sol–gel coating of TiO2 and surface hydrophobization
superhydrophobicity titania sol UV shielding cotton fabrics
2010/10/12
By coating fibers with titania sol to generate a dual-size surface roughness, followed by
hydrophobization with stearic acid, 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane or their
combination, hydro...
A novel method for synthesis of -Si3N4 nanowires by sol–gel route
sol–gel nanowires -Si3N4
2010/10/13
Silicon nitride (Si3N4) nanowires have been prepared by carbothermal reduction followed
by the nitridation (CTRN) of silica gel containing ultrafine excess carbon obtained by the
decomposition of de...
In the case of electrically conducting layers prepared on a glass substrate, sodium diffuses into the SnO2 film and deteriorates their electric properties. Sodium barrier diffusion properties of thin ...
AFM examination of sol–gel matrices doped with photosensitizers
atomic force microscope (AFM) sol–gel material nanostructure
2011/5/5
Various compounds may be entrapped into the sol–gel materials, including the photosensitive agents. The nanostructure of the final material depends on the matrix itself, as well as on the structural p...
Formation and structural characterization of silver nanoparticles in ormosil sol–gel films
silver nanoparticles ormosil sol–gel composite
2011/5/5
Silver nanoparticles were obtained in situ in ormosil sol–gel films with attached urethane groups. Optical spectra of the silver nanoparticles in the films show red shift of absorption maximum with in...
Fluorescence properties of sol–gel materials doped with photosensitizers
fluorescence sol–gel material
2011/5/5
Sol–gel materials may found plenty of applications, e.g., as carriers for various substances, which can be exploited for sensing purposes or as drug releasing carriers. In this work, the fluorescence ...
络合作用对Sol-gel法制备Er3+掺杂TiO2粉末光致发光特性影响
2007/12/12
摘要 以钛酸正丁酯为前驱体, 乙酰丙酮为络合剂, 分别在室温和70°C进行对前驱体改性的络合反应, 获得改性前驱体Ti(O-Bu)4-x(AcAc)x. 以异丙醇为溶剂, 采用溶胶-凝胶(sol-gel)法制备0.1~3.0mol% Er 3+掺杂TiO2粉末. 差热-热重(TG-DTA)分析结果表明, 由室温络合改性前驱体制备的粉末, 无定型到锐钛矿和锐钛矿到金红石的相变温度, 较由70°C络合...
Sol-Gel法制备球形UO2陶瓷颗粒
2007/12/12
摘要 以U3O8粉末为原料, 采用外凝胶与内凝胶结合的sol-gel法, 经过溶解制胶、凝胶成球、陈化、洗涤干燥、煅烧、还原烧结、筛选得到球形UO2陶瓷颗粒. 采用该方法制备的陶瓷颗粒为面心立方结构, 密度为理论密度的98.18%; 基本不含杂质, O/U比为2.00, 平均标准偏差为0.001; 平均直径为498.1μm, 标准偏差为14.7μm; 球形度分布在1.00～1.10区间, 平均值为...
Sol-gel法制备TiO2／PVP纳米复合材料及其表征
溶胶凝胶法 钛酸丁酯 聚乙烯吡咯烷酮
纳米
2007/11/9
文章摘要：
以钛酸丁酯乙烯吡咯烷酮为原料, 采用Ｓｏｌ－ｇｅｌ法制备了ＴｉＯ２／ＰＶＰ纳米复合材料, 采用原子力显微镜（ＡＦＭ）、红外光谱、ＸＲＤ、ＴＧＡ等测试方法分别研究了薄膜的表面形貌和材料的结构与热稳定性.
择优取向的PbTiO3玻璃陶瓷薄膜的Sol-Gel制备及结构
铁电薄膜 玻璃陶瓷 择优取向 Sol-Gel
2007/10/26
文章摘要：
采用Sol--Gel工艺制备了PbTiO3 (PT)玻璃陶瓷薄膜, 实现了常规熔融法难以达到的高PT含量. 薄膜中PT晶粒分布均匀, 晶粒大小约0.1μm, 膜中无孔洞. 采用常规热处理,可获得c轴择优取向的PT玻璃陶瓷薄膜, 而利用快速热处理技术有助于抑制PT焦绿石相的出现, 且薄膜呈现轻微的a轴择优取向.
用Sol-Gel法制备喷墨打印用BaTiO3陶瓷墨水
钛酸钡 陶瓷墨水 溶胶-凝胶 理化性能
2007/10/26
文章摘要：
用Sol-Gel法, 通过控制异丙醇钛和醋酸钡的水解速率制备了BaTiO3陶瓷墨水. 研究了该陶瓷墨水的制备工艺参数, 分散剂添加量, 导电盐添加量, pH值, 固相含量等对墨水性能的影响.用扫描电镜观察了BaTiO3墨滴打印点和单一打印层的形貌, 发现陶瓷墨滴大小均匀, 打印层表面平整. 该墨水满足连续式喷墨打印要求.
专著信息
书名
Electrical Properties of Nanoporous F Doped SiO2 Low-k Thin Films Prepared by Sol-Gel Method with catalyst HF
语种
英文
撰写或编译
作者
Zhi-Wei He,Xue-Qin Liu,Yong-Ping Guo,Yin-Yue Wang
第一作者单位
出版社
Journa...
专著信息
书名
Effect of Annealing on the Properties of Low-k Nanoporous SiO2 Films Prepared by Sol-Gel Method with Catalyst HF
语种
英文
撰写或编译
作者
Z.W. He,X.Q. Liu,D.Y. Xu,Y.Y. Wang
第一作者单位
出版社
Microelectronics R...
专著信息
书名
Characteristic of nanoporous SiO2 thin film prepared by sol-gel method with catalyst HF
语种
英文
撰写或编译
作者
Z.W.He,X.Q.Liu,D.Y.Xu,Q.Su,D.F.Guo,Y.Y Wang
第一作者单位
出版社
Materials Science Forum 475-479 17...
专著信息
书名
Improvement of electrical properties of low dielectric constant nanoporous silica films prepared using sol-gel method with catalyst HF
语种
英文
撰写或编译
作者
Z.W.He,X.Q.Liu,Q.Su,Y.Y Wang
第一作者单位
出版社
Ap...