The origin of a two-stage endothermic reaction in Zr36Ti 24Be40 metallic glass

J. H. Na; Y. C. Kim; W. T. Kim; D. H. Kim

doi:10.3365/met.mat.2008.10.553

The origin of a two-stage endothermic reaction in Zr₃₆Ti ₂₄Be₄₀ metallic glass

J. H. Na, Y. C. Kim, W. T. Kim, D. H. Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The origin of a two-stage endothermic reaction in Zr₃₆Ti ₂₄Be₄₀ metallic glass was investigated by differential scanning calorimetry (DSC), thermo-mechanical analyzer (TMA) and high resolution transmission electron microscopy (HREM). HREM image of a specimen heated to 420 °C under a constant applied tensile stress of 3 MPa showed the formation of medium-range-ordered clusters 1 nm to 2 nm in size. This phenomenon is attributed to strain-induced deformation. This suggests that the formation of clusters may be an appropriate interpretation of the additional endothermic heat in the supercooled liquid region.

Original language	English
Pages (from-to)	553-557
Number of pages	5
Journal	Metals and Materials International
Volume	14
Issue number	5
DOIs	https://doi.org/10.3365/met.mat.2008.10.553
Publication status	Published - 2008 Oct

Bibliographical note

Funding Information:
This work was supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology. J. H. Na acknowledges the support from the Second Stage of Brain Korea 21 Project in 2007. Y. C. Kim thanks the Center for Nanostructured Materials Technology under the ‘21st Century Frontier R&D Programs’ for the grant (code #: 07k1501-00410). W. T. Kim acknowledges the financial support from Cheongju University through the special research grant program (2006-2008).

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.3365/met.mat.2008.10.553

Cite this

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title = "The origin of a two-stage endothermic reaction in Zr36Ti 24Be40 metallic glass",

abstract = "The origin of a two-stage endothermic reaction in Zr36Ti 24Be40 metallic glass was investigated by differential scanning calorimetry (DSC), thermo-mechanical analyzer (TMA) and high resolution transmission electron microscopy (HREM). HREM image of a specimen heated to 420 °C under a constant applied tensile stress of 3 MPa showed the formation of medium-range-ordered clusters 1 nm to 2 nm in size. This phenomenon is attributed to strain-induced deformation. This suggests that the formation of clusters may be an appropriate interpretation of the additional endothermic heat in the supercooled liquid region.",

author = "Na, {J. H.} and Kim, {Y. C.} and Kim, {W. T.} and Kim, {D. H.}",

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AU - Kim, D. H.

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AB - The origin of a two-stage endothermic reaction in Zr36Ti 24Be40 metallic glass was investigated by differential scanning calorimetry (DSC), thermo-mechanical analyzer (TMA) and high resolution transmission electron microscopy (HREM). HREM image of a specimen heated to 420 °C under a constant applied tensile stress of 3 MPa showed the formation of medium-range-ordered clusters 1 nm to 2 nm in size. This phenomenon is attributed to strain-induced deformation. This suggests that the formation of clusters may be an appropriate interpretation of the additional endothermic heat in the supercooled liquid region.

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