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PENGARUH VARIASI BERAT FOAMING AGENT CaH2 TERHADAP KARAKTERISTIK PADUAN Mg-Ca-Zn METAL SELULAR BERBASIS SISTEM Mg-Zn-CaH2

Ika Kartika,M. Amal,Cahya Sutowo,Sulistyoso Gian Sukarso,Bambang Sriyono

Published 2018 in Metalurgija

ABSTRACT

THE EFFECTS OF FOAMING AGENT CONTENT CaH2 ON THE CHARACTERISTIC OF METAL CELLULAR Mg-Ca-Zn ALLOYS BASED ON Mg-Zn-CaH2 SYSTEM. In this study, cellular metal with the open-cell structure of Mg-Ca-Zn alloy based on Mg-CaH2-Zn system was prepared and investigated. The addition of CaH2 was intended to trigger the release of hydrogen gas from CaH2 of the alloy powder particles so as to encourage the formation of pores. Alloy composition was selected by -2% by weight Mg Zn 1.2% by weight of CaH2; and Mg -2 wt% Zn 10% by weight of CaH2. The results of the alloy powder after milling and compacting were tested by Differential Thermal Analysis (DTA), while the results of sintered green-compacts were characterized by XRD (X-ray diffraction) and microstructure observation using SEM-EDS (scanning electron microscopy-energy dispersive spectroscopy). From the analysis using XRD, the process of mechanically mixing powders of Mg-Ca-Zn-Mg CaH2 produced elemental phase of Zn phase, Mg phase (HCP) and binary phase of Mg2Ca besides the ternary Mg-Ca-Zn.

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