Martin Bram

ORCID: 0000-0002-1203-2777
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About
Contact & Profiles
Research Areas
  • Advancements in Solid Oxide Fuel Cells
  • Advanced materials and composites
  • Advanced ceramic materials synthesis
  • Fuel Cells and Related Materials
  • Electronic and Structural Properties of Oxides
  • Titanium Alloys Microstructure and Properties
  • Fusion materials and technologies
  • Shape Memory Alloy Transformations
  • Membrane Separation and Gas Transport
  • Catalytic Processes in Materials Science
  • Intermetallics and Advanced Alloy Properties
  • Nuclear Materials and Properties
  • Additive Manufacturing and 3D Printing Technologies
  • Electrocatalysts for Energy Conversion
  • Advancements in Battery Materials
  • Metal and Thin Film Mechanics
  • Advanced Battery Materials and Technologies
  • Aluminum Alloys Composites Properties
  • Powder Metallurgy Techniques and Materials
  • Ferroelectric and Piezoelectric Materials
  • Orthopaedic implants and arthroplasty
  • Catalysts for Methane Reforming
  • Bone Tissue Engineering Materials
  • Cellular and Composite Structures
  • Injection Molding Process and Properties

Forschungszentrum Jülich
2016-2025

Ruhr University Bochum
2020-2025

Ghent University
2023

Christian Doppler Laboratory for Thermoelectricity
2016-2020

Interface (United States)
2017-2019

Jülich Aachen Research Alliance
2015-2018

Chemical Synthesis Lab
2016

Nagaoka University
2016

Nagaoka University of Technology
2016

RWTH Aachen University
2016

Al-contaminated Ta-substituted Li7La3Zr2O12 (LLZ:Ta), synthesized via solid-state reaction, and Al-free Li7La3Zr2O12, fabricated by hot-press sintering (HP-LLZ:Ta), have relative densities of 92.7% 99.0%, respectively. Impedance spectra show the total conductivity LLZ:Ta to be 0.71 mS cm–1 at 30 °C that HP-LLZ:Ta 1.18 cm–1. The lower for than was attributed higher grain boundary resistance density LLZ:Ta, as confirmed their microstructures. Constant direct current measurements with a 0.5 mA...

10.1021/acsami.6b00831 article EN ACS Applied Materials & Interfaces 2016-03-31

The production of highly porous parts from titanium, stainless steel, and nickel-based superalloys is increasing interest in lightweight constructions. A new space-holder method uses carbamide (urea) ammonium hydrogen carbonate to produce samples with porosities between 60 80 %. Depending on the shape size distribution space holder, spherical angular pores range 0.1–2.5 mm were obtained.

10.1002/(sici)1527-2648(200004)2:4<196::aid-adem196>3.3.co;2-b article EN Advanced Engineering Materials 2000-04-01

Solid oxide fuel cells (SOFCs) exhibit potential to become a key technology for future clean energy systems. The metal-supported SOFC exhibits decisive strengths like fast start-up capability, mechanical robustness, and acceptable cost, making it the concept of choice mobile applications. As promising example, SOFC-powered range extenders electric vehicles offer refueling significantly increased driving range, while lowering size, weight, cost vehicle's battery. Here, we report development...

10.1016/j.xcrp.2020.100072 article EN cc-by-nc-nd Cell Reports Physical Science 2020-06-01

Spark plasma sintering as the prominent field‐assisted technique (FAST/SPS) is a novel technology for rapid, pressure‐assisted consolidation of powder materials. The main feature FAST/SPS direct Joule heating applied tooling. Tooling challenging part setup, which must withstand high pressure at elevated temperatures and ensure uniform temperature distribution in sintered part. This review looks standard tooling, specific tooling complex‐shaped parts, pressureless sintering. A particular...

10.1002/adem.202301391 article EN cc-by-nc Advanced Engineering Materials 2024-01-11

AbstractThe production of highly porous titanium parts complex shape by powder metallurgical technology is described. Well defined porosity and pore sizes were achieved using a forming additive. This additive also enhances the strength unsintered compacts, allowing machining in green state. The requirements initial powders pecularities each step are discussed detail. microstructure materials examples net given, aiming preferentially at biomedical applications. impurities obtained compared...

10.1179/003258904225015536 article EN Powder Metallurgy 2004-01-01

Highly efficient energy conversion and storage technologies such as high‐temperature solid oxide fuel electrolysis cells, all‐solid‐state batteries, gas separation membranes, thermal barrier coatings for advanced turbine systems depend on materials. In all cases, processing of ceramics metals starting from powders plays a key role is often challenging task. Depending their composition, powder materials require high sintering temperatures show an inherent risk abnormal grain growth,...

10.1002/adem.202000051 article EN cc-by-nc-nd Advanced Engineering Materials 2020-03-06

Abstract A new method was developed for producing highly porous NiTi use as an implant material. The combination of the space‐holder technique with metal injection molding process allows a net‐shape fabrication geometrically complex samples and possibility mass production NiTi. Further, porosity can be easily adjusted respect to pore size, shape, total porosity. influence surface properties powder metallurgical on biocompatibility first examined using human mesenchymal stem cells (hMSCs). It...

10.1002/adem.200900168 article EN Advanced Engineering Materials 2009-09-30
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