Dataset Information

Dataset of spark plasma sintering of Al-Zn-Sn alloy for soft solder application.

ABSTRACT: The conventional soft solder used in soldering electronic joints is made up of 63% Sn and 37% Pb. It has been established that Pb is harmful to the body. Therefore, there is an on-going research to find a replacement for Pb. Al-Zn-Sn alloy is considered here as a possible replacement for soft solder of Sn and Pb. Three compositions of the alloy (Al-7Zn-3Sn, Al-10Zn-5Sn, and Al-13Zn-7Sn) were sintered at the sintering temperatures of 300 °C and 350 °C (and the constant pressure of 40 MPa, time of 5 mins, a heating rate of 20 °C/mins). Temperature/displacement/time variation data during the sintering were collected. The three alloys were compared after sintering by checking their microstructure, their densities, their hardness, their porosity, and their tensile strengths. Results showed that Al-13Zn-7Sn sintered at 350 °C, 40 MPa, 5 mins, 20 °C/mins had the highest densification of 99.7%, the lowest porosity of 0.3%, least hardness and strength of 450.34 MPa and 147.84 MPa respectively.

SUBMITTER: Oladijo OP

PROVIDER: S-EPMC6506702 | biostudies-other | 2019 Jun

REPOSITORIES: biostudies-other

ACCESS DATA

Publications

Dataset of spark plasma sintering of Al-Zn-Sn alloy for soft solder application.

Oladijo O P OP Popoola A P I API Ujah C O CO Namoshe M M

Data in brief 20190423

The conventional soft solder used in soldering electronic joints is made up of 63% Sn and 37% Pb. It has been established that Pb is harmful to the body. Therefore, there is an on-going research to find a replacement for Pb. Al-Zn-Sn alloy is considered here as a possible replacement for soft solder of Sn and Pb. Three compositions of the alloy (Al-7Zn-3Sn, Al-10Zn-5Sn, and Al-13Zn-7Sn) were sintered at the sintering temperatures of 300 °C and 350 °C (and the constant pressure of 40 MPa, time of ...[more]

PMID: 31080861

Similar Datasets

Project description:The bimodal-grain-size 7075 aluminium alloys containing varied ratios of large and small 7075 aluminium powders were prepared by spark plasma sintering (SPS). The large powder was 100 ± 15 ?m in diameter and the small one was 10 ± 5 ?m in diameter. The 7075 aluminium alloys was completely densified under the 500 °C sintering temperature and 60 MPa pressure. The large powders constituted coarse grain zone, and the small powders constituted fine grain zone in sintered 7075 aluminium alloys. The microstructural and microchemical difference between the large and small powders was remained in coarse and fine grain zones in bulk alloys after SPS sintering, which allowed for us to investigate the effects of microstructure and microchemistry on passive properties of oxide film formed on sintered alloys. The average diameter of intermetallic phases was 201.3 nm in coarse grain zone, while its vale was 79.8 nm in fine grain zone. The alloying element content in intermetallic phases in coarse grain zone was 33% to 48% higher than that on fine grain zone. The alloying element depletion zone surrounding intermetallic phases in coarse grain zone showed a bigger width and a more severe element depletion. The coarse grain zone in alloys showed a bigger electrochemical heterogeneity as compared to fine grain zone. The passive film formed on coarse grain zone had a thicker thickness and a point defect density of 2.4 × 1024 m-3, and the film on fine grain zone had a thinner thickness and a point defect density of 4.0 × 1023 m-3. The film resistance was 3.25 × 105 ?cm2 on coarse grain zone, while it was 6.46 × 105 ?cm2 on fine grain zone. The passive potential range of sintered alloys increased from 457 mV to 678 mV, while the corrosion current density decreased from 8.59 × 10-7 A/cm2 to 6.78 × 10-7 A/cm2 as fine grain zone increasing from 0% to 100%, which implied that the corrosion resistance of alloys increased with the increasing content of fine grains. The passive film on coarse grain zone exhibited bigger corrosion cavities after pitting initiation compared to that on fine grain zone. The passive film formed on fine grain zone showed a better corrosion resistance. The protectiveness of passive film was mainly determined by defect density rather than the thickness in this work.

Dataset Information

Dataset of spark plasma sintering of Al-Zn-Sn alloy for soft solder application.

Publications

Dataset of spark plasma sintering of Al-Zn-Sn alloy for soft solder application.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets