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Materials Processing Lab
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The lab studies processing methods for metals and powders.
AboutAbout the lab
Manufacturing research on processing metals and powders.
The Materials Processing Lab studies plastic working, in which metals are deformed by external force, and powder metallurgy processes, in which metal and ceramic powders are consolidated.
The lab originally started with research on plastic working, and in recent years it has been actively pursuing research in newer processing fields such as powder metallurgy.
Its research covers not only experiments that investigate processing phenomena but also the use of analytical methods and application-oriented studies.
In addition to Kyushu University students, the lab welcomes international students and students from other universities, those who wish to go on to a PhD, and those who wish to visit the lab.
Key terms
- Plastic working
- A process that shapes metal by applying external force to deform it
- Powder metallurgy
- A method of making parts and materials by consolidating metal or ceramic powders
- Sintering
- The step in which a powder compact is consolidated. The compact shrinks during this step
- Gas atomization
- A method of obtaining metal powder by spraying high-pressure gas onto molten metal to break it into fine particles
NewsLab news
View More ↗ResearchResearch themes
The lab works on topics related to powder metallurgy processes, in which metal and ceramic powders are shaped and sintered: sintering simulation, metal injection molding, the development of new processing methods, and gas atomization. It pursues not only experiments that investigate processing phenomena but also analytical methods and application-oriented research.
*Illustrative imageSimulation of sintering phenomena
During sintering, a powder compact shrinks, and uneven shrinkage causes defects such as distortion and cracks. The lab develops models and simulation methods for sintering shrinkage behavior, aiming to optimize forming conditions computationally and to establish methods for materials design.
*Illustrative imageMetal injection molding process
In metal injection molding, a shape is formed from metal powder and resin, and the resin is then removed to obtain a metal part. The lab aims to make such parts stronger and more functional. Its work includes improving the fatigue strength of titanium alloys, strengthening Ni-based superalloys, and developing ultra-tough steels with heterogeneous microstructures, as well as developing processes for large parts and analyzing deformation behavior.
*Illustrative imageNew processing methods using powder processing
A key feature of powder processing is that it allows control of the microstructure of non-equilibrium phases. For amorphous alloys, metallic glass alloys, and high-entropy alloys, the lab carries out everything in an integrated way, from powder synthesis to forming, sintering, plastic working, heat treatment, and property evaluation.
*Illustrative imageResearch on the gas atomization process
Gas atomization is a process in which high-pressure gas is sprayed onto molten metal to break it into fine droplets and obtain metal powder. The lab works to advance the process, for example by optimizing nozzle shape and material. Recently, it has been using synchrotron radiation X-ray CT to observe pores inside the powder, working to clarify how they form and to suppress them.
MembersFaculty
The members of the Materials Processing Lab consist of faculty, administrative assistants, technical staff, and master's and undergraduate students.
- ProfessorKazunari Shinagawa
- Associate ProfessorNoriharu Yodoshi
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Iron powder” Anonimski / CC0 (cropped)
- Simulation of sintering phenomena: “Gesintertes-Rad” Clemens Pfeiffer, Vienna / CC BY 2.5 (cropped)
- Metal injection molding process: “INDO-MIM Automotive Sector” INDO-MIM PVT. LTD. / CC BY-SA 4.0 (cropped)
- New processing methods using powder processing: “Rhodium powder pressed melted” Alchemist-hp (talk) www.pse-mendelejew.de derivative work: Purpy Pupple (talk) / CC BY-SA 3.0 de (cropped)
- Research on the gas atomization process: “Atomization” Fernando Santos da Silva, Núria Cinca, Sergi Dosta, Irene Garcia Cano, Josep Maria Guilemany, Assis Vicente Benedetti / CC BY-SA 4.0 (cropped)
- Related lab (固体力学研究室): “Tensile testing on a coir composite” Kerina yin / CC0 (cropped)
- Related lab (構造材料評価研究室): “TiAl duplex” Lne / CC0 (cropped)
- Related lab (熱物理工学研究室): “Thermal Conductivity Measurement, Modified Transient Plane Source Technique” JimRocket / CC BY-SA 3.0 (cropped)
- Related lab (水素貯蔵システム研究室): “Eggshell” TeWeBs / CC BY-SA 4.0 (cropped)
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