Micropatterning kinetics of different glass-forming systems investigated by thermoplastic net-shaping

Baran Sarac; Supriya Bera; Florian Spieckermann; Sascha Balakin; Mihai Stoica; Mariana Calin; Jürgen Eckert

doi:10.1016/j.scriptamat.2017.02.038

Micropatterning kinetics of different glass-forming systems investigated by thermoplastic net-shaping

Baran Sarac
, Supriya Bera
, Florian Spieckermann
, Sascha Balakin
, Mihai Stoica
, Mariana Calin
, Jürgen Eckert

Erich-Schmid-Institut für Materialwissenschaft der Österreichischen Akademie der Wissenschaften
National Institute of Technology, Durgapur
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS Hermsdorf Thüringen
Politehnica University of Timisoara
IFW Dresden
ETH Zürich

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

8 Zitate (Scopus)

Abstract

The formability difference between good and marginal glass-forming systems is investigated by micro-surface patterning of hierarchical features using thermoplastic net-shaping (TPN). For each alloy, a remarkable change in the flow behaviour is observed as the applied force along with the pressing time and temperature are optimized. The flow kinetics of glassy alloys with different glass-forming abilities is best described by the formability parameter S, which is defined by the ratio of the width of the supercooled to undercooled liquid region (T l - T g)/(T x - T g). Reproducible micro-engineered surfaces with high uniformity can be established by controlled TPN processing.

Originalsprache	Englisch
Seiten (von - bis)	127-131
Seitenumfang	5
Fachzeitschrift	Scripta materialia
Jahrgang	137.2017
Ausgabenummer	August
Frühes Online-Datum	12 Apr. 2017
DOIs	https://doi.org/10.1016/j.scriptamat.2017.02.038
Publikationsstatus	Veröffentlicht - 31 Aug. 2017

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10.1016/j.scriptamat.2017.02.038

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title = "Micropatterning kinetics of different glass-forming systems investigated by thermoplastic net-shaping",

abstract = "The formability difference between good and marginal glass-forming systems is investigated by micro-surface patterning of hierarchical features using thermoplastic net-shaping (TPN). For each alloy, a remarkable change in the flow behaviour is observed as the applied force along with the pressing time and temperature are optimized. The flow kinetics of glassy alloys with different glass-forming abilities is best described by the formability parameter S, which is defined by the ratio of the width of the supercooled to undercooled liquid region (T l - T g)/(T x - T g). Reproducible micro-engineered surfaces with high uniformity can be established by controlled TPN processing.",

keywords = "Formability kinetics, Glass-forming ability, Supercooled liquid fragility, Thermophysical properties, Thermoplastic net-shaping",

author = "Baran Sarac and Supriya Bera and Florian Spieckermann and Sascha Balakin and Mihai Stoica and Mariana Calin and J{\"u}rgen Eckert",

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AU - Sarac, Baran

AU - Bera, Supriya

AU - Spieckermann, Florian

AU - Balakin, Sascha

AU - Stoica, Mihai

AU - Calin, Mariana

AU - Eckert, Jürgen

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AB - The formability difference between good and marginal glass-forming systems is investigated by micro-surface patterning of hierarchical features using thermoplastic net-shaping (TPN). For each alloy, a remarkable change in the flow behaviour is observed as the applied force along with the pressing time and temperature are optimized. The flow kinetics of glassy alloys with different glass-forming abilities is best described by the formability parameter S, which is defined by the ratio of the width of the supercooled to undercooled liquid region (T l - T g)/(T x - T g). Reproducible micro-engineered surfaces with high uniformity can be established by controlled TPN processing.

KW - Formability kinetics

KW - Glass-forming ability

KW - Supercooled liquid fragility

KW - Thermophysical properties

KW - Thermoplastic net-shaping

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