【摘 要】
：
SnO2 microspherical (SnO2(s)) were prepared by hydrothermal method using SnCl4·5H2O and NaOH as raw materials, and Ag/SnO2(s) electrical contact material were obtained by high-balling and sintering pr
【机 构】
：
Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310029, China
【出 处】
：
2016’中国溶胶-凝胶学术研讨会暨国际论坛
论文部分内容阅读
SnO2 microspherical (SnO2(s)) were prepared by hydrothermal method using SnCl4·5H2O and NaOH as raw materials, and Ag/SnO2(s) electrical contact material were obtained by high-balling and sintering processes.Effects of surfactants, hydrothermal time and pH value on the morphology of SnO2 microspheres were studied.The morphology, microstructure and physical properties of Ag/SnO2(s) electrical contacts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), Vickers hardness tester and conductivity meter.Results show that mono dispersed SnO2 microspheres with a diameter of 1-4 μm were obtained using CTAB as the template at pH=13 with hydrothermal time of 25h.The electrical resistivity of Ag-SnO2(s)was 3.18 μΩ·cm, which is better than that of traditional Ag/SnO2(p) electrical contact material with nano SnO2 particulates as the second reinforcing material.
其他文献
A novelAg2O/TiO2nanocompositeaerogel was synthetized through sol-gel method as highly efficient antibacterial agent, followed by drying with supercriticalethanol.In this work, TBOS as Ti source was ad
SiO2 aerogel was prepared via the sol-gel and alcohol supercritical drying process.Effects of heat treatment temperature on the morphology and pore properties of the SiO2 aerogel were characterized by
Flexible methylsilsesquioxane xerogels were prepared via sol-gel process followed by ambient pressure drying with trimethoxymethylsilane (MTMS) and dimethoxydimethylsilane (DMDMS) as co-precursor,hydr
Low density aerogel composites for thermal insulation can be widely applied in advanced missiles, aerospace vehicles and military fields because of their lightweight and thermal insulation performance
Objective: To investigate the clinical efficacy of the toothpaste containing 12 % high cleaning silica (HCS) and 2.1% sodium phytate on removing natural extrinsic dental stain.Methods: A random, doubl
Carbon nanofibers (CNF) are synthesis by pyrolysis of polyacrylonitrile (PAN) nanofibersthat are prepared by dissolving of PAN in N,N-dimethylformamide (DMF) solution followed by electrospinning and d
Magnesium oxide (MgO) is an important oxide material that has many applications such as catalysts, catalyst supports, adsorbents, refractory materials, pharmaceuticals [1] and toxic waste remediation
Polyacetylacetonatozirconium (PAZ) is a widely used precursor for the fabrication of continuous ZrO2 fibers which are important reinforced materials for ceramic matrix composites (CMCs).The spinnabili
TiO2 nanofibers were obtained from polyacetictitanium (PET) nanofibers by the heat treatment.PET nanofibers, as the precursor, were prepared by electrospinning using tetrabutyl titanate and acetate as
Semiconductor photocatalysis can be used to decompose various organic compounds in open air under aqueous conditions with solar energy.Bismuth tungstate (Bi2WO6), one of the simplest Aurivillius phase