Effect of particle size on densification of copper powder during electric-field activated sintering for micro-scale forming

Kunlan Huang, Yi Qin, Yi Yang

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Abstract

A novel Micro-forming technology, called electric-field activated sintering for micro-scale forming (Micro-FAST), was introduced for the forming of micro-components. The effect of particle size on densification is revealed for copper powder being sintered under the influence from electrical field and force-field during forming of micro-components. Three kinds of copper powders of different particle sizes ((i) average particle size of 0.5μm; (ii) average particle size of 30μm and (iii) the mixture powders with 20% weight of 30μm and 80% weight of 0.5μm) with no binder were used for the experiments. The results show that the density of the compact sintered with mixed copper powders is the largest due to more volume of liquid phase was formed in the particle's contacts. The result being in correspondence with the analytical results of computer simulation. The new understanding developed would help to better quality control during the sintering of micro-components.
Original languageEnglish
Title of host publicationAdvances in Manufacturing Technology XXVIII
Subtitle of host publicationProceedings of the 12th International Conference on Manufacturing Research (ICMR2014) : Incorporating the 29th National Conference on Manufacturing Research : 9th-11th September 2014
EditorsFayyaz Rehman, Nicholas Woodfine, Ramesh Marasini
Place of PublicationSouthampton
Number of pages6
Publication statusPublished - 9 Sep 2014
Event12th International Conference on Manufacturing Research - Southampton Solent University, Southampton, United Kingdom
Duration: 9 Sep 201411 Sep 2014
http://www.solent.ac.uk/conference-centre/events/icmr-2014/icmr-2014.aspx

Conference

Conference12th International Conference on Manufacturing Research
Abbreviated titleICMR2014
CountryUnited Kingdom
CitySouthampton
Period9/09/1411/09/14
Internet address

Keywords

  • Micro-FAST
  • micro-Sintering
  • particle size
  • densification
  • copper powder
  • micro-metal-forming
  • electric-field activated sintering

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    Huang, K., Qin, Y., & Yang, Y. (2014). Effect of particle size on densification of copper powder during electric-field activated sintering for micro-scale forming. In F. Rehman, N. Woodfine, & R. Marasini (Eds.), Advances in Manufacturing Technology XXVIII: Proceedings of the 12th International Conference on Manufacturing Research (ICMR2014) : Incorporating the 29th National Conference on Manufacturing Research : 9th-11th September 2014