Synthesis of Nano-SnAgCu Solder by Microemulsion Method

doi:10.11901/1005.3093.2019.532

Chinese Journal of Materials Research

2020, Vol. 34

Issue (4): 299-303 DOI: 10.11901/1005.3093.2019.532

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Synthesis of Nano-SnAgCu Solder by Microemulsion Method

YU Xin, DI Tongtong, SHEN Hangyan(

)

School of Material and Chemistry, China Jiliang University, Hangzhou 310018, China

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YU Xin, DI Tongtong, SHEN Hangyan. Synthesis of Nano-SnAgCu Solder by Microemulsion Method. Chinese Journal of Materials Research, 2020, 34(4): 299-303.

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Abstract

Nano-SnAgCu solder of low melting point was prepared by means of microemulsion method. The effect of different surfactants, Sn-precursors and the ratio of microemulsion on the melting temperature of the prepared particles of nano-SnAgCu solder was systematically investigated. Results show that the lowest initial melting temparture, 183.6^oC was acquired for the particles of nano-SnAgCu solder prepared via the process with optimal processing parameters, namely the prepared Sn3.0Ag0.5Cu solder presents a melting point of 183.6^oC, which is close to 183^oC of the lowest melting point of SnPb solder, while is c.a. 32.2^oC below that of the commercial solder paste (217.8^oC).

Key words: non-ferrous metals and their alloys nano SnAgCu solder microemulsion method melting temperature

Received: 14 November 2019

ZTFLH:

TG425

Fund: the Science and Technology Project of Zhejiang Province(No. 2018C01123)

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	Xin YU
	Tongtong DI
	Hangyan SHEN

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https://www.cjmr.org/EN/10.11901/1005.3093.2019.532 OR https://www.cjmr.org/EN/Y2020/V34/I4/299

Fig.1 XRD pattern of Sn3.0Ag0.5Cu nanoparticles synthesized by microemulsion method

Fig.2 TEM images of nano-SnAgCu particles

Fig.3 Particle size of different microemulsion reactors: the water phase was (0) pure deionized water; (I) solution of metal precursor; (Ⅱ) solution of reducing agent

Fig.4 TEM images of SnAgCu particles in different particle sizes synthesized by microemulsion method (a) 500 nm; (b) 60 nm; (c) 10 nm

Table 1 Research results of the melting temperature and the particle size of SnAgCu nano-particles

Table 2 Synthesis parameters of different surfactants

Fig.5 DSC of SnAgCu sample synthesized by different surfactants (a) CTAB; (b) SPAN80; (c) OP-10 (d) TritinX114

Table 3 Synthesis parameters of different tin precursors

Fig.6 DSC diagram of SAC particles synthesized by different Sn precursors (a) C₁₆H₃₀O₄Sn; (b) SnCl₂; (c) SnSO₄

Table 4 Competition of microemulsion particle size and nano-Sn3.0Ag0.5Cu particle melting point in different synthesis parameters of microemulsion

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