Two-step sintering approach for the ex-situ heat treatment of polycrystalline MgB₂ coatings

Authors

Xyrus Arreza Galapia ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Vallerie Ann Innis Samson ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland Villano Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

A two-step heating profile is adapted for the sintering of polycrystalline magnesium diboride (MgB₂) coatings. The densification process of MgB₂ is performed in two isothermal steps. First at 800°C, where diffusion is observed through the presence of coarsened structures. Then at 600°C, where we simultaneously observed densification and grain growth. The length of exposure or the soak period at each isothermal step is crucial to promote densification while limiting the effects of oxidation. Although oxidation is present in the sample subjected to the modified two-step profile, we have shown that it is successful in obtaining a well-packed MgB₂ coating.

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Issue

2019: Proceedings of the 37th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2019-PA-01

Section

Poster Session PA

Published

2019-05-21

How to Cite

[1]

XA Galapia, VAI Samson, and RV Sarmago, Two-step sintering approach for the ex-situ heat treatment of polycrystalline MgB2 coatings, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-01 (2019). URL: https://proceedings.spp-online.org/article/view/SPP-2019-PA-01.