Alexander Lau
5 Papers
Alexander Lau is an academic researcher. The author has contributed to research in topics: Tungsten & Composite number. The author has an hindex of 1, co-authored 2 publications.
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Papers
Bulk Tungsten Fiber-Reinforced Tungsten (Wf/W) Composites Using Yarn-Based Textile Preforms
Alexander Lau,J. Coenen,D. Schwalenberg,Yiran Mao,Till Höschen,Johann Riesch,L. Raumann,Michael Treitz,Hanns Gietl,Alexis Terra,Ch. Linsmeier,Katharina Theis-Bröhl,Jesus Gonzalez-Julian +12 more
TL;DR: In this paper , two textile preforms were developed utilizing radial braided W-yarns with 7 core and 16 sleeve filaments (R.B. 16 + 7), with a diameter of 25 µm each, as the warp material.
Combining CVD and SPS for the production of Tungsten fiber‐reinforced tungsten (Hybrid ‐ Wf /W)
Alexander Lau,Yiran Mao,Rui Shu,J. W. Coenen,M. Poll,Ch. Linsmeier,J. Gonzalez-Julian +6 more
TL;DR: Combining CVD and SPS for the production of tungsten fiber‐reinforced tungsten composites is feasible but requires additional processing steps or the utilization of tungsten powders. The process is currently limited to simple textile structures and does not fully exploit the advantages of CVD.
Effect of the heating rate and Y2O3 coating on the microstructure of Wf/Y2O3/W composites via field assisted sintering technology
Rui Shu,Yiran Mao,Alexander Lau,J. Coenen,Alexis Terra,Chao Liu,Johann Riesch,Christian Linsmeier,Christoph Broeckmann +8 more
TL;DR: This study investigates the effect of heating rate and Y2O3 coating on the microstructure of Wf/Y2O3/W composites fabricated via field-assisted sintering technology, revealing the impact of heating rate and coating thickness on interface continuity and Y2O3 coating integrity.
Progress in the development of industrial scale tungsten fibre-reinforced composite materials
J. Riesch,Alexander Müller,Yi Mao,J. W. Coenen,B. Böswirth,S. Elgeti,M. Fuhr,H. Greuner,Till Höschen,K. Hunger,P. Junghanns,Alexander Lau,S. Roccella,L. Vanlitsenburgh,J-H. You,Ch. Linsmeier,R. Neu +16 more
TL;DR: Researchers develop industrial-scale tungsten fibre-reinforced composite materials for fusion devices, achieving progress in characterization, upscaling, and fabrication of pseudo-ductile Wf/W and high-strength Wf/Cu composites for plasma-facing components.
Large-Scale Tungsten Fibre-Reinforced Tungsten and Its Mechanical Properties
D. Schwalenberg,J. Coenen,Johann Riesch,T. Hoeschen,Yiran Mao,Alexander Lau,Hanns Gietl,L. Raumann,P. Huber,Ch. Linsmeier,R. Neu +10 more
TL;DR: In this paper , the size upscaling of Wf/W based on Chemical Vapour Deposition (CVD) has been shown together with fracture mechanical tests of two different size samples of wf/w produced by CVD and a provisional fracture toughness value of up to 346MPam1/2 was calculated for the as-fabricated material.