Article
Engineering, Chemical
Masoud Shahidi Moghadam, Abdolali Fayyaz, Mohammad Ardestani
Summary: This research studied the challenges of fabricating titanium components through low-pressure powder injection moulding (LPIM). It was found that feedstock with high powder loading was not suitable for LPIM, and suitable parameters for solvent debinding were obtained by soaking the samples in n-hexane at 60 degrees C temperature. After sintering, the hardness and density of the sintered part were 490 HV and 4.11 g/cm³, respectively, with coarse alpha plates and alpha/beta colonies observed in the microstructure.
Review
Materials Science, Multidisciplinary
Francisco Cavilha Neto, Mauricio Vitor Giaretton, Guilherme Oliveira Neves, Claudio Aguilar, Marcelo Tramontin Souza, Cristiano Binder, Aloisio Nelmo Klein
Summary: Titanium foams have gained increasing interest in the biomedical industry as biomimetic implants in the past two decades. The porous structure is crucial for bone adhesion and reducing elastic modulus to enhance compatibility with bone.
Article
Materials Science, Multidisciplinary
Nurul Nadiah Mahmud, Farah Atiqah Abdul Azam, Mohd Ikram Ramli, Farhana Mohd Foudzi, Kei Ameyama, Abu Bakar Sulong
Summary: This study presents a promising alternative approach in powder injection molding (PIM) process by utilizing irregular-shaped and bimodal size powder in Ti6Al4VHA composite. The irregular-shaped Ti6Al4V-HA exhibits good rheological behavior and low viscosity, producing crack-free parts with high relative density of 95% after sintering, showing excellent osseointegration properties. The findings suggest the suitability of irregular-shaped Ti6Al4V-HA as a useful alternative material for biomedical applications, especially in bone implantation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Review
Engineering, Chemical
T. Chen, C. Suryanarayana, C. Yang
Summary: Advanced Ti materials, including Ti, Ti alloys, and Ti-matrix composites, have significant advantages over conventional counterparts in terms of higher performance, lower cost, and wider applications. Titanium hydride (TiH2) powder has many advantages in producing advanced Ti materials, such as high relative density, novel microstructure, and competitive mechanical properties. This review summarizes the research progress on the dehydrogenation mechanism and resultant effect of TiH2 powder, the interrelation between processing technologies, microstructures, and mechanical properties of advanced Ti materials, and the influence of Kirkendall's pores on mechanical properties of Ti matrix composites.
Article
Engineering, Chemical
Eduardo Tabares, Sandra C. Cifuentes, Antonia Jimenez-Morales, Sophia A. Tsipas
Summary: This study successfully manufactured porous MAX phase Ti3SiC2 using Powder Injection Moulding (PIM) without the need of a space holder, aiming to broaden the application fields of MAX phase. In-depth characterization and control of all process stages were conducted to produce sustainable feedstocks with good properties for injection moulding. The selection of binder with reduced carbon footprint, use of critical solid loading and optimized debinding conditions, as well as adjusted sintering parameters contributed to the successful achievement of porous MAX phase samples.
Article
Automation & Control Systems
Ulrich Soupremanien, Hugo Dayde, Myriam Dalmasso
Summary: The increase in power density of power electronics depends on reducing the size of passive components. Traditional fabrication techniques for ferrites have limitations in producing cores with advanced geometrical features. Additive manufacturing or powder injection moulding are promising techniques that allow for the shaping of magnetics with unprecedented geometrical features. The study found that cores with a loading rate of 84.7 wt% had the lowest power losses, attributed to better magnetic phase purity.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Polymer Science
Alberto Basso, Yang Zhang, Jacob Kjeldahl Ploger, Jon Spangenberg, Hans Norgaard Hansen
Summary: This study explores the use of freeform injection moulding technology, highlighting the benefits of using 3D printed moulds for increased geometrical design flexibility. By injecting stainless steel powder suspension into a geometrically challenging sacrificial mould, the numerical model developed aligns well with experimental findings, offering a new approach for evaluating sacrificial inserts in high geometrical complexity powder injection moulding processes.
Article
Chemistry, Applied
Estefania Alvarez-Castillo, Ismael Santana, Jose Gomez, Carlos Bengoechea, Antonio Guerrero
Summary: The use of biopolymers in plastics production has limitations due to their poorer mechanical properties, but the addition of citric acid as a crosslinker can improve mechanical properties and thermal stability, while reducing water absorption. These findings suggest that citric acid can replace synthetic crosslinking agents in the development of bioplastics.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Materials Science, Ceramics
Shijie Wang, Yicheng Yin, Liugang Chen, Xinhong Liu, Quanli Jia, Shaowei Zhang
Summary: A novel and facile technique using KCl as space holders, combined with partial sintering, was explored to prepare porous ZrB2-SiC ceramics with controllable pore structure, tunable compressive strength, and thermal conductivity. The properties of the porous ceramics, such as porosity, pore structure, compressive strength, and thermal conductivity, can be tuned by adjusting the KCl content and particle size.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Chemical
Shucheng Dong, Guangyu Ma, Peng Lei, Tuo Cheng, Dmytro Savvakin, Orest Ivasishin
Summary: The study demonstrated that using titanium hydride powder as a starting material in titanium powder metallurgy leads to materials with higher density and lower impurity content, providing a better balance of tensile properties compared to using HDH titanium powder.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Engineering, Chemical
Muhammad Dilawer Hayat, Hongzhou Zhang, Kariappa Maletira Karumbaiah, Harshpreet Singh, Ying Xu, Liming Zou, Xuanhui Qu, Sudip Ray, Peng Cao
Summary: By comparing the rheological behavior of feedstocks containing different amounts of PVAc and PVP, it is demonstrated that the addition of PVAc into the PEG/PMMA binder system can produce Ti-MIM feedstocks with good rheological properties, resulting in void-free injection molded samples, and acceptable mechanical properties.
Article
Materials Science, Ceramics
I. Romero-Garcia, M. E. Sotomayor, B. Levenfeld, A. Varez, A. Varzi, G. T. Kim, S. Passerini
Summary: In this study, ultra-thick binder-free ceramic electrodes were processed using powder injection moulding (PIM) technique. The resulting electrodes showed high energy density and safety. The specific synthesis process allowed for high porosity electrodes, which exhibited very high capacities in half-cell experiments.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Multidisciplinary
Tiance Zhang, Kaiyang Li, Yuanzhi Zhu
Summary: A new method combining the advantages of both reactive synthesis and space holder method was explored through the fabrication of TiAl3-Al porous materials at low titanium content. The composition, structure, and mechanical properties of different titanium content were further studied. Reduction of titanium content and sintering in the air effectively reduced the reaction intensity of titanium and aluminum, resulting in retained pore wall morphology and in-situ generated small pores. Complex changes caused by titanium content not only led to morphological changes and matrix transformation but also significantly affected the mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Manufacturing
C. Kenel, N. R. Geisendorfer, R. N. Shah, D. C. Dunand
Summary: The study focuses on the creation of hierarchically porous Fe or Ni scaffolds using 3D ink-extrusion of powders followed by sintering. The resulting metallic lattices exhibit hierarchical porosities with different pore sizes, which can be controlled by adjusting the sintering temperature and time.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Physical
Tarik Aydogmus, Dana Kareem Hameed Palani, Fevzi Kelen
Summary: Ti74Nb26 alloys with porosities in the range of 45-68% were successfully produced using Mg space holder technique combined with hot pressing and sintering processes. The mechanical properties of the alloys improved with decreasing porosity and were suitable for various bone replacement applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
A. Paez-Pavon, A. Jimenez-Morales, M. Rodriguez-Arbaizar, E. Carreno-Morelli, J. M. Torralba
Article
Nanoscience & Nanotechnology
L. Kollo, C. R. Bradbury, R. Veinthal, C. Jaeggi, E. Carreno-Morelli, M. Leparoux
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2011)
Article
Metallurgy & Metallurgical Engineering
J. -E. Bidaux, C. Closuit, M. Rodriguez-Arbaizar, D. Zufferey, E. Carreno-Morelli
Article
Metallurgy & Metallurgical Engineering
E. Carreno-Morelli, J. -E. Bidaux, M. Rodriguez-Arbaizar, H. Girard, H. Hamdan
Article
Metallurgy & Metallurgical Engineering
J. -E. Bidaux, R. Pasquier, M. Rodriguez-Arbaizar, H. Girard, E. Carreno-Morelli
Article
Materials Science, Multidisciplinary
E. Carreno-Morelli, P. Alveen, S. Moseley, M. Rodriguez-Arbaizar, K. Cardoso
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
E. Carreno-Morelli, P. Alveen, S. Moseley, M. Rodriguez-Arbaizar, K. Cardoso
Summary: Cemented carbide parts manufactured by "Solvent on Granules 3D-Printing" show excellent physical properties and functionality, comparable to traditional parts, and have successfully undergone concrete drilling tests.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Engineering, Manufacturing
Marius A. Wagner, Amir Hadian, Tutu Sebastian, Frank Clemens, Thomas Schweizer, Mikel Rodriguez-Arbaizar, Efrain Carreno-Morelli, Ralph Spolenak
Summary: This study presents the development of a multi-component binder system for 3D printing of 316 L stainless steel, allowing precise control of the mechanical and rheological properties of the material.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Marius A. Wagner, Jona Engel, Amir Hadian, Frank Clemens, Mikel Rodriguez-Arbaizar, Efrain Carreno-Morelli, Jeffrey M. Wheeler, Ralph Spolenak
Summary: Filament extrusion-based additive manufacturing of metals provides a different microstructure compared to beam-based methods. The study shows that optimal microstructure of 316L stainless steel can be achieved through debinding and sintering under specific conditions, resulting in high density and avoiding detrimental hard phases.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Alexandra Amherd Hidalgo, Thomas Ebel, Robert Frykholm, Efrain Carren-Morelli, Florian Pyczak
Summary: This study investigates the influence of oxygen on the tensile and high cycle fatigue properties of Ti-6Al-7Nb alloy processed by MIM. It is found that oxygen can be used as a strengthener, but excessive oxygen content leads to a significant decrease in ductility. The non-equilibrium microstructure plays a vital role in enhancing the strength and impairing the ductility, and it can be controlled by optimizing the cooling rate. Additionally, oxygen progressively reduces the high cycle fatigue properties of the alloy.
MATERIALS TODAY COMMUNICATIONS
(2023)
Correction
Engineering, Manufacturing
Agustin Jose Torroba, Ole Koeser, Loic Calba, Laura Maestro, Efrain Carreno-Morelli, Mehdi Rahimian, Srdjan Milenkovic, Ilchat Sabirov, Javier LLorca
INTEGRATING MATERIALS AND MANUFACTURING INNOVATION
(2021)
Article
Materials Science, Multidisciplinary
E. Carreno-Morelli, M. Rodriguez-Arbaizar, K. Cardoso, A. B. Nagaram, H. Girard, S. Rey-Mermet
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2020)
Article
Engineering, Manufacturing
Agustin Jose Torroba, Ole Koeser, Loic Calba, Laura Maestro, Efrain Carreo-Morelli, Mehdi Rahimian, Srdjan Milenkovic, Ilchat Sabirov, Javier LLorca
INTEGRATING MATERIALS AND MANUFACTURING INNOVATION
(2014)
Article
Engineering, Manufacturing
Agustin Jose Torroba, Ole Koeser, Loic Calba, Laura Maestro, Efrain Carreno-Morelli, Mehdi Rahimian, Srdjan Milenkovic, Ilchat Sabirov, Javier LLorca
INTEGRATING MATERIALS AND MANUFACTURING INNOVATION
(2014)
