3Al5O12,銀基電接觸材料"/> 3)36H2O)、硝酸鋁(Al(NO3)39H2O)為主要原料,六次甲基四胺作為催化劑,采用溶膠-凝膠法合成Y3Al5O12(YAG)納米顆粒,并以YAG顆粒為第二相增強(qiáng)材料,通過粉末冶金工藝制備Ag/YAG電接觸復(fù)合材料；采用X-射線衍射儀(XRD),掃描電子顯微鏡(SEM),透射電子顯微鏡(TEM),傅里葉紅外光譜(FT-IR)、硬度計(jì)、電導(dǎo)率儀等方法對(duì)其進(jìn)行表征。結(jié)果表明：在水浴溫度為50℃的條件下成功采用sol-gel法合成YAG納米顆粒,物相純度高；隨著催化劑六次甲基四胺加入量的增加,YAG粉末顆粒粘連在一起,并出現(xiàn)大孔；以YAG為第二相增強(qiáng)材料制備的Ag/YAG電接觸復(fù)合片材電阻率較低,維氏硬度大于80。"/>

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溶膠-凝膠法制備YAG顆粒及在電接觸材料中的應(yīng)用
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浙江大學(xué),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,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

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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


Preparation of YAG Nanoparticles by Sol-Gel and its Application in Electrical Contact Material
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Department of Materials Science and Engineering,Zhejiang University,Department of Materials Science and Engineering,Zhejiang University,Department of Materials Science and Engineering,Zhejiang University,Department of Materials Science and Engineering,Zhejiang University,Wenzhou Hongfeng Electrical Alloy Co Ltd,Wenzhou Hongfeng Electrical Alloy Co Ltd

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    摘要:

    以硝酸釔(Y(NO3)36H2O)、硝酸鋁(Al(NO3)39H2O)為主要原料,六次甲基四胺作為催化劑,采用溶膠-凝膠法合成Y3Al5O12(YAG)納米顆粒,并以YAG顆粒為第二相增強(qiáng)材料,通過粉末冶金工藝制備Ag/YAG電接觸復(fù)合材料；采用X-射線衍射儀(XRD),掃描電子顯微鏡(SEM),透射電子顯微鏡(TEM),傅里葉紅外光譜(FT-IR)、硬度計(jì)、電導(dǎo)率儀等方法對(duì)其進(jìn)行表征。結(jié)果表明：在水浴溫度為50℃的條件下成功采用sol-gel法合成YAG納米顆粒,物相純度高；隨著催化劑六次甲基四胺加入量的增加,YAG粉末顆粒粘連在一起,并出現(xiàn)大孔；以YAG為第二相增強(qiáng)材料制備的Ag/YAG電接觸復(fù)合片材電阻率較低,維氏硬度大于80。

    Abstract:

    YAG nanoparticles were prepared by sol - gel method using yttrium nitrate (Y(NO3)36H2O) and aluminum nitrate (Al(NO3)39H2O) as the main raw materials and hexamethylenediamine as the catalyst. Ag / YAG electrical contact composites were fabricated by powder metallurgy. And the microstructure and properties of them were characterized by XRD, SEM, TEM, FTIR and so on. The results showed that pure YAG nanoparticles were successfully synthesized by sol-gel method with the bath temperature of 50℃. The size of YAG nanoparticles increased with the increasing of the amount of hexamethylenediamine.And low resistivity and high hardness (>80Hv) of Ag / YAG electrical contact composite were obtained when sintering temperature reached 860℃.

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管秉鈺,張玲潔,楊輝,樊先平,祁更新,陳曉.溶膠-凝膠法制備YAG顆粒及在電接觸材料中的應(yīng)用[J].稀有金屬材料與工程,2018,47(S2):40~43.[Guan Bingyu, Zhang Lingjie, Yang Hui, Fan Xianping, Qi Gengxin, Chen Xiao. Preparation of YAG Nanoparticles by Sol-Gel and its Application in Electrical Contact Material[J]. Rare Metal Materials and Engineering,2018,47(S2):40~43.]
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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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