Search results for: Benedikt Bochtler

Items from 1 to 6 out of 6 results

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On the bulk glass formation in the ternary Pd-Ni-S system

Alexander Kuball, Benedikt Bochtler, Oliver Gross, Victor Pacheco, more

Acta Materialia > 2018 > 158 > C > 13-22

We report on the formation of bulk metallic glasses in the ternary Pd-Ni-S system. In a large compositional range, glass formation is observed by copper mold casting with a glass forming ability of up to 2 mm in diameter for the composition Pd₃₇Ni₃₇S₂₆. The best compromise of thermal stability upon heating from the as-cast state and glass forming ability was found for Pd₃₁Ni₄₂S₂₇, having a critical...

article

Sulfur-bearing metallic glasses: A new family of bulk glass-forming alloys

Alexander Kuball, Oliver Gross, Benedikt Bochtler, Ralf Busch

Scripta Materialia > 2018 > 146 > C > 73-76

Metallic glasses constitute a class of engineering materials having an enormous potential for many fields of application due to their superior properties. Here, we report on a new family of sulfur-bearing bulk metallic glasses. So far, sulfur was not considered as alloying element for the synthesis of bulk metallic glasses. We observe bulk glass formation in a variety of sulfur-containing systems,...

article

Consolidation of amorphous powder by thermoplastic forming and subsequent mechanical testing

Benedikt Bochtler, Moritz Stolpe, Benedikt Reiplinger, Ralf Busch

Materials & Design > 2018 > 140 > C > 188-195

Amorphous powder of the commercially available Zr-based glass-forming alloy AMZ4 (Zr_59.3Cu_28.8Al_10.4Nb_1.5) is consolidated by thermoplastic forming (TPF). The glassy powder is heated into the supercooled liquid state, where its viscosity drops drastically and stress induced flow of the particles allows a binding of the powder sample. Here, we focus on the implementation of a TPF process on the way...

article

On the high glass-forming ability of Pt-Cu-Ni/Co-P-based liquids

Oliver Gross, Sascha S. Riegler, Moritz Stolpe, Benedikt Bochtler, more

Acta Materialia > 2017 > 141 > C > 109-119

The continuous and isothermal crystallization diagrams of the Pt_42.5Cu₂₇Ni_9.5P₂₁ and the Pt₆₀Cu₁₆Co₂P₂₂ bulk glass forming compositions are determined using calorimetric experiments. In the case of the Pt_42.5Cu₂₇Ni_9.5P₂₁ bulk metallic glass, the formation of the primary crystalline phase can be prevented by rapid cooling in a conventional DSC. In contrast, for similar cooling conditions, the formation...

article

The kinetic fragility of Pt-P- and Ni-P-based bulk glass-forming liquids and its thermodynamic and structural signature

Oliver Gross, Benedikt Bochtler, Moritz Stolpe, Simon Hechler, more

Acta Materialia > 2017 > 132 > C > 118-127

The thermodynamic and kinetic properties of Pt-P- and Ni-P-based bulk glass-forming liquids are investigated using differential scanning calorimetry and three-point beam bending. The kinetic fragility of the alloys is determined by measuring relaxation times and equilibrium viscosities. In the Pt-P-based alloy family a Pt-rich alloy is one of the most fragile bulk glass-forming liquids in the vicinity...

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Thermo-physical characterization of the Fe67Mo6Ni3.5Cr3.5P12C5.5B2.5 bulk metallic glass forming alloy

Benedikt Bochtler, Oliver Gross, Isabella Gallino, Ralf Busch

Acta Materialia > 2016 > 118 > C > 129-139

The iron-phosphorus based bulk metallic glass forming alloy Fe₆₇Mo₆Ni_3.5Cr_3.5P₁₂C_5.5B_2.5 is characterized with respect to its thermophysical properties, crystallization and relaxation behavior, as well as its viscosity. The alloy provides a high critical casting thickness of 13 mm, thus allowing for the casting of amorphous parts with a considerable size. Calorimetric measurements reveal the characteristic...

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Keywords

BULK METALLIC GLASS (3)
BULK METALLIC GLASSES (2)
GLASS-FORMING ABILITY (2)
AMORPHOUS POWDER (1)
BENDING TEST (1)
BULK METALLIC GLASS (BMG) (1)
DIFFERENTIAL SCANNING CALORIMETRY (DSC) (1)
FE-BASED ALLOY (1)
FRAGILITY (1)
INTERFACIAL ENERGY (1)
KINETIC FRAGILITY (1)
KINETICS (1)
MECHANICAL PROPERTIES (1)
MECHANICAL PROPERTIES TESTING (1)
MEDIUM-RANGE ORDER (1)
POWDER CONSOLIDATION (1)
RELAXATION (1)
RHEOLOGY (1)
SULFUR (1)
THERMAL ANALYSIS (1)
THERMODYNAMICS (1)
THERMOPLASTIC FORMING (1)
TIME-TEMPERATURE TRANSFORMATION DIAGRAM (1)
TITANIUM ALLOYS (1)
VISCOSITY (1)
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INFONA - science communication portal

Search results for: Benedikt Bochtler

On the bulk glass formation in the ternary Pd-Ni-S system

Sulfur-bearing metallic glasses: A new family of bulk glass-forming alloys

Consolidation of amorphous powder by thermoplastic forming and subsequent mechanical testing

On the high glass-forming ability of Pt-Cu-Ni/Co-P-based liquids

The kinetic fragility of Pt-P- and Ni-P-based bulk glass-forming liquids and its thermodynamic and structural signature

Thermo-physical characterization of the Fe67Mo6Ni3.5Cr3.5P12C5.5B2.5 bulk metallic glass forming alloy

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INFONA - science communication portal

Search results for: Benedikt Bochtler

On the bulk glass formation in the ternary Pd-Ni-S system

Sulfur-bearing metallic glasses: A new family of bulk glass-forming alloys

Consolidation of amorphous powder by thermoplastic forming and subsequent mechanical testing

On the high glass-forming ability of Pt-Cu-Ni/Co-P-based liquids

The kinetic fragility of Pt-P- and Ni-P-based bulk glass-forming liquids and its thermodynamic and structural signature

Thermo-physical characterization of the Fe67Mo6Ni3.5Cr3.5P12C5.5B2.5 bulk metallic glass forming alloy

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