Tesfaye Molla

Computational Alloy Design for Process-Related Uncertainties in Powder Metallurgy

TT Molla, A Atthapreyangkul, GB Schaffer

Journal article  |  2022  |  INTEGRATING MATERIALS AND MANUFACTURING INNOVATION

An integrated computational materials engineering approach to the design of alloys for supersolidus liquid phase sintering has bee..

Hybridisation of microstructures from three classes of titanium alloys

Ahmad Zafari, Edward W Lui, Shenbao Jin, Mogeng Li, Tesfaye T Molla, Gang Sha, Kenong Xia

Journal article  |  2020  |  Materials Science and Engineering: A

A ternary hybrid Ti alloy (HYTA) was produced by selective laser melting (SLM), combining all three classes of the titanium system..

Computational Efficient Modeling of Sintering in Multi-component Alloys for ICME Applications

TT Molla, JZ Liu, GB Schaffer

Journal article  |  2020  |  Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

The major challenge while using sintering models for simulation of densification in multi-component alloys is finding the correct ..

Computational Design of Functionally Graded Materials from Sintered Powders

T Molla, Zhe Liu, Graham Schaffer

Journal article  |  2019  |  Integrating Materials and Manufacturing Innovation

A new computational method is presented for the efficient design of alloy systems in functionally graded materials (FGMs), optimiz..

Modeling the Mechanical Integrity of Generic Solid Oxide Cell Stack Designs Exposed to Long-term Operation

TT Molla, K Kwok, HL Frandsen

Journal article  |  2019  |  Fuel Cells

Thermal cycling and creep in metallic interconnects during operation of solid oxide cell (SOC) stacks could cause contact losses i..

Exploring the Processing of Tubular Chromite- and Zirconia-Based Oxygen Transport Membranes

Astri Bjornetun Haugen, Lev Martinez Aguilera, Kawai Kwok, Tesfaye Molla, Kjeld Bohm Andersen, Steven Pirou, Andreas Kaiser, Peter Vang Hendriksen, Ragnar Kiebach

Journal article  |  2018  |  CERAMICS-SWITZERLAND

Tubular oxygen transport membranes (OTMs) that can be directly integrated in high temperature processes have a large potential to ..

An ICME Framework for Design of Stainless Steel for Sintering

T Molla, Zhe Liu, Graham Schaffer

Journal article  |  2018  |  Integrating Materials and Manufacturing Innovation

Recent progress in the development of integrated computational materials engineering (ICME) models offers new capabilities to deal..

Development of high temperature mechanical rig for characterizing the viscoplastic properties of alloys used in solid oxide cells

T Molla, F Greco, K Kwok, P Zielke, H Frandsen

Journal article  |  2018  |  Journal of Testing and Evaluation

Analyzing the thermomechanical reliability of the solid oxide cell (SOC) stack requires precise measurement of the mechanical prop..

Mechanical Investigation of Various Stack Designs for Solid Oxide Cells

Tesfaye T Molla, Kawai Kwok, Henrik Lund Frandsen

Journal article  |  2017  |  ECS Meeting Abstracts

Stress development in metallic interconnects during operational cycles of solid oxide cells (SOCs) could create permanent plastic ..

Production and Reliability Oriented SOFC Cell and Stack Design

Martin Hauth, Vincent Lawlor, Peter Cartellieri, Christopher Zechmeister, Sebastian Wolff, Christian Bucher, Jürgen Malzbender, Jianping Wei, André Weber, Georgios Tsotridis, Henrik Lund Frandsen, Kawai Kwok, Tesfaye T Molla, Zacharie Wuillemin, Jan Van herle, Fabio Greco, Thierry Cornu, Arata Nakajo, Alan Atkinson, Luc Vandeperre, et al.

Journal article  |  2017  |  ECS Meeting Abstracts

This paper reports the results from the European project PROSOFC (funded by FCH-JU, FP7). Within the project an innovative methodo..