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Article
Open AccessHigh-Temperature Interaction of Liquid Gd with Y2O3
The sessile drop method combined with contact heating procedure was applied for the investigation of high-temperature interaction between liquid Gd and Y2O3 substrate. Real-time behavior of Gd sample in flowing i...
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Article
Open AccessStructural evolution and strength change of a metallic glass at different temperatures
The structural evolution of a Zr64.13Cu15.75Ni10.12Al10 metallic glass is investigated in-situ by high-energy synchrotron X-ray radiation upon heating up to crystallization. The structural rearrangements on the a...
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Article
High-temperature wetting and interfacial interaction between liquid Al and TiB2 ceramic
The wetting behaviour and interfacial interactions between liquid Al and TiB2 ceramic have been studied by the sessile drop technique in the temperature range from 700 to 1400 °C. At about 800 °C, liquid Al start...
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Article
Open AccessCorrelation between atomic structure evolution and strength in a bulk metallic glass at cryogenic temperature
A model Zr41.25Ti13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass (BMG) is selected to explore the structural evolution on the atomic scale with decreasing temperature down to cryogenic level using high energy X-...
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Article
Phase separation in monotectic alloys as a route for liquid state fabrication of composite materials
The mechanism of liquid–liquid phase separation and factors determining the solid-state microstructure of monotectic alloys are discussed. The effect of the cooling rate on the phase-separated morphology is sh...
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Article
Open AccessSessile drop study of Gd–Ti monotectic alloys on ceramic substrates: phase transformations, wetting, and reactivity
Gd–Ti monotectic alloys were studied in a wide temperature range by the sessile drop technique. The eutectic and monotectic transformations in Gd–Ti alloys upon heating were in situ monitored by a high-speed a...
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Article
Open AccessQuantitative anomalous small-angle X-ray scattering — The determination of chemical concentrations in nano-scaled phases
In the last years Anomalous Small-Angle X-ray Scattering became a precise quantitative method resolving scattering contributions two or three orders of magnitude smaller compared to the overall small-angle sca...
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Article
Ductile Ti-Based Bulk Metallic Glasses with High Specific Strength
Ti-based bulk metallic glasses (BMGs) with large compressive plasticity were developed in the Ti-rich part of Vitreloy series BMGs (Ti65–x Zr x Cu9Ni8Be18
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Chapter and Conference Paper
Atomic Structure of (Ge0.2Se0.8)85B15 and (Ge0.2Se0.8)85In15 Glasses
The atomic structure of (Ge0.2Se0.8)85B15 and (Ge0.2Se0.8)85In15 chalcogenide glasses has been studied with X-ray diffraction, neutron diffraction and extended X-ray absorption fine structure measurements. The re...
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Article
In situ high-energy x-ray diffraction observation of structural evolution in a Ti-based bulk metallic glass upon heating
The structural evolution of the Ti40Zr10Cu34Pd14Sr2 bulk metallic glass (BMG) upon was investigated by means of in situ high-energy x-ray diffraction. The position, width, and intensity of the first peak in diffr...
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Article
Open AccessExperimental and Thermodynamic Assessment of the Nb-Ni-Y System
Phase equilibria in the ternary Nb-Ni-Y system are studied experimentally for the first time using x-ray diffraction, electron probe microanalysis, and differential scanning calorimetry in combination with lev...
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Chapter
Advanced Barriers for Copper Interconnects
Both Ta-Si-N and W-Si-N films have promising properties as diffusion barriers for copper metallization. For Ta-Si-N films with a silicon content of ∼ 20 at%, as an optimised system regarding thermal stability ...
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Article
Comparison of the annealing behavior of thin Ta films deposited onto Si and SiO2 substrates
Structural changes at annealing temperatures (T an) of 500–1,100°C were investigated for thin Ta films which were sputter-deposited onto pure Si substrates and onto thermally oxidized Si. In the as-deposited stat...
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Article
Thermodynamic assessment of the Mo-Zr system
The Mo-Zr system was critically assessed using the calculation of phase diagrams (CALPHAD) technique. The solution phases (liquid, bcc, and cph) were modeled with the Redlich-Kister expression for the excess G...
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Article
Glass and Quasicrystal Formation in a Zr-based Multicomponent Alloy
The phase formation of a Zr57Ti8Nb2.5Cu13.9Ni11.1Al7.5alloy has been investigated upon cooling from the melt at different quenching rates as well as upon annealing of as-cast specimens. The different samples are ...
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Article
Thermodynamic assessment of Gd-Zr and Gd-Mo systems
Two binary systems, Gd-Zr and Gd-Mo, were assessed for the first time. Despite the very limited experimental data, consistent thermodynamic descriptions for all phases were obtained. The assessment was done us...
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Article
Reassessment of the Fe-Gd (Iron-Gadolinum) system
The Fe-Gd binary system was reassessed in order to obtain a consistent thermodynamic description. Compared to previous work, some new experimental information was used. It was established that not all the expe...
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Article
Phase relations in the Fe-rich region of the Fe-Gd-Mo ternary system at 800 °C
The phase relation in the Fe-rich region of the Fe-Gd-Mo ternary system at 800 °C has been investigated using x-ray powder diffraction followed by Rietveld refinement and electron probe microanalysis. A partia...
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Article
Experimental study of ternary Fe-Gd-Mo phase diagram
The ternary system Fe-Gd-Mo was investigated at 1200 °C. A complete isothermal section is given, containing two ternary solid phases of composition Gd1+n Fe12−x−y Mo ...
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Article
Preparation and phase transformations of melt-spun Al–Ge–Si brazing foils
A series of Al-Ge-Si alloys was melt spun into ribbons of about 40 μm thickness. The alloy compositions were selected so as to be suitable as filler metals with brazing temperatures <500°C. In the as-quenched ...
