4.5H2O)和氫氧化鈉(NaOH)為原料,采用水熱法在180℃下反應(yīng)25h成功地制備了SnO2實(shí)心微球,并通過(guò)高能球磨法將SnO2實(shí)心微球與化學(xué)Ag粉混合,并進(jìn)行壓制、燒結(jié)等工藝處理?？疾炝吮砻婊钚詣┓N類、水熱時(shí)間及PH值對(duì)SnO2微球形貌的影響,通過(guò)掃描電子顯微鏡(SEM)、X射線衍射儀(XRD)、透射電子顯微鏡(TEM)和維氏硬度計(jì)、電導(dǎo)率儀等分析手段對(duì)產(chǎn)物的形貌、結(jié)構(gòu)及物理性能等進(jìn)行了表征。結(jié)果表明,以十六烷基三甲基溴化銨(CTAB)為表面活性劑,反應(yīng)溫度為180℃、PH值13時(shí),可以得到分散性良好的SnO2微球,微球?yàn)閷?shí)心狀,球形度好,尺寸在1~4 μm之間；與Ag粉經(jīng)壓制、燒結(jié)后片材的電阻率為3.18 μΩ.cm、密度為71.5 g.cm-3, 均比普通納米SnO2粉體與Ag制得的樣品性能好。"/>

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SnO2實(shí)心球制備及其在電接觸材料中應(yīng)用
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浙江大學(xué),浙江大學(xué),浙江大學(xué),溫州宏豐電工合金股份有限公司;溫州宏豐電工合金股份有限公司,浙江大學(xué),浙江大學(xué),浙江大學(xué),

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(浙江省科技計(jì)劃項(xiàng)目,項(xiàng)目號(hào)2017C01051；浙江省自然科學(xué)基金,LQ17E010002)


Controllable Preparation of SnO2 Microspherical and its Application in Electrical Contact Material
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Zhejiang-California International Nanosystems Institute,,Zhejiang University,,,,,

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    摘要:

    以結(jié)晶四氯化錫(SnCl4.5H2O)和氫氧化鈉(NaOH)為原料,采用水熱法在180℃下反應(yīng)25h成功地制備了SnO2實(shí)心微球,并通過(guò)高能球磨法將SnO2實(shí)心微球與化學(xué)Ag粉混合,并進(jìn)行壓制、燒結(jié)等工藝處理?？疾炝吮砻婊钚詣┓N類、水熱時(shí)間及PH值對(duì)SnO2微球形貌的影響,通過(guò)掃描電子顯微鏡(SEM)、X射線衍射儀(XRD)、透射電子顯微鏡(TEM)和維氏硬度計(jì)、電導(dǎo)率儀等分析手段對(duì)產(chǎn)物的形貌、結(jié)構(gòu)及物理性能等進(jìn)行了表征。結(jié)果表明,以十六烷基三甲基溴化銨(CTAB)為表面活性劑,反應(yīng)溫度為180℃、PH值13時(shí),可以得到分散性良好的SnO2微球,微球?yàn)閷?shí)心狀,球形度好,尺寸在1~4 μm之間；與Ag粉經(jīng)壓制、燒結(jié)后片材的電阻率為3.18 μΩ.cm、密度為71.5 g.cm-3, 均比普通納米SnO2粉體與Ag制得的樣品性能好。

    Abstract:

    SnO2 microspherical (SnO2(s)) were successfully prepared by hydrothermal method at 180℃ for 25 hours,using SnCl4.5H2O and NaOH as raw materials. And Ag- SnO2(s) electrical contacts material were obtained by high-balling and sintering processes; Effects of surfactants, hydrothermal time and pH on the morphology of SnO2 microspheres were studied；The morphology, structure and other physical properties of Ag-SnO2(s) electrical contacts material were characterized by Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Vickers Hardness Tester and Conductivity Meter. The results show that monodispersed SnO2 microspheres with a diameter of 1 ~ 4 μm were obtained using CTAB as the template at pH=13 with hydrothermal time for 25h. The electrical resistivity and density of Ag-SnO2(s) electrical contacts material are respectively 3.18 μΩ.cm and 71.5 g.cm-3, which is better than that of traditional Ag-SnO2(p) electrical contacts material with nano SnO2 particulates as the second reinforecement.

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張繼,沈濤,張玲潔,陳曉,楊輝,申乾宏,樊先平,趙良奎. SnO2實(shí)心球制備及其在電接觸材料中應(yīng)用[J].稀有金屬材料與工程,2018,47(S2):272~276.[Zhang Ji, Shen Tao, Zhang Lingjie, Chen Xiao, Yang Hui, Shen Qianhong, Fan Xianping, Zhao Liangkui. Controllable Preparation of SnO2 Microspherical and its Application in Electrical Contact Material[J]. Rare Metal Materials and Engineering,2018,47(S2):272~276.]
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  • 收稿日期:2017-12-12
  • 最后修改日期:2017-12-12
  • 錄用日期:2018-02-01
  • 在線發(fā)布日期: 2018-11-01
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