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Hirata-Aono Lab
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A surface engineering lab that enhances the functions of material surfaces using nano-carbon materials and laser processing.
AboutAbout the lab
Enhancing surface functions through nanoscale phenomena.
The Hirata-Aono Lab conducts research on enhancing the functions of material surfaces, in the fields of mechanical materials and materials processing.
Surfaces are required to have many functions, such as strength, lubricity, and resistance to heat and chemical change.
Making use of nanoscale phenomena, the lab works on synthesizing nano-carbon materials, fabricating thin films, and laser processing.
The lab covers a wide range of themes, from fundamental research to development-oriented research.
Key terms
- Nanoscale
- The very small world at the nanometer scale, close to the size of atoms and molecules.
- Abrasive grains
- Hard, fine grains used to grind or polish the surface of an object.
- Amorphous carbon
- Carbon whose atoms are solidified without a regular arrangement. It is used as a hard, slippery thin film.
- Additive manufacturing
- A processing method that builds three-dimensional shapes by adding material little by little. 3D printers are one example.
NewsLab news
View More ↗ResearchResearch themes
Centered on the fields of mechanical materials and materials processing, the lab conducts a wide range of research from fundamental research to development-oriented research. It studies how to enhance the functions of material surfaces by making use of nanoscale phenomena.
*Illustrative imageCarbon onions for lubrication
The lab produces carbon onions, nano-carbon materials made of spherical shells stacked in many layers, by heat treatment, aiming to use them as a new solid lubricant for vacuum and high-temperature environments.
*Illustrative imageUltra-precision polishing with nano-carbon materials
The lab studies polishing methods that use carbon onions or nanodiamonds as abrasive grains. It works on abrasive grains that can polish even hard silicon carbide while suppressing fine scratches, as well as on designing and building polishing equipment.
*Illustrative imageHigh-performance amorphous carbon films
The lab produces hard amorphous carbon thin films with excellent lubricity and strength. The research aims to enhance their functions, including films that show wear through fluorescence, films that can conduct electricity away, and films that resist peeling.
*Illustrative imageParticle-by-particle additive manufacturing
The lab studies an additive manufacturing method that builds shapes using individual particles as the unit. It uses a high-speed camera to record how particles are joined together by a laser.
MembersFaculty
The Hirata-Aono Lab consists of faculty members and master's and undergraduate students.As of 2026
- ProfessorAtsushi HirataPublications ↗
- Associate ProfessorYuko AonoPublications ↗
- Assistant ProfessorDaijiro TokunagaPublications ↗
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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: “Laser structured surface ( )” ZEISS Microscopy from Germany / CC BY-SA 2.0 (cropped)
- Carbon onions for lubrication: “Zirconium dioxide ZrO2 bearing balls” Lucasbosch / CC BY-SA 3.0 (cropped)
- Ultra-precision polishing with nano-carbon materials: “SiC wafers 6inch” FDominec / CC BY-SA 4.0 (cropped)
- High-performance amorphous carbon films: “Diamond-like carbon coated cobalt ball” Drac2000 at English Wikipedia / CC BY-SA 3.0 (cropped)
- Particle-by-particle additive manufacturing: “SEM photo of 316L Stainless Steel metal powder atomized with ATO Lab Plus ultrasonic metal atomizer” Michaltoczko / CC BY 4.0 (cropped)
- Related lab (三浦研究室): “WBAMC first in DoD to use robot for surgery 160426-A-EK666-526” Marcy Sanchez / Public domain (cropped)
- Related lab (店橋・
志村研究室): “Meker-Fisher burner 001” jasonwoodhead23 / CC BY 2.0 (cropped) - Related lab (原田・加藤研究室
（リコー次世代デジタルプリンティング技術共同研究講座） ): “Inkjet-printed Neschen Filmoflex PVC Mesh L” Smokeonthewater / CC BY-SA 4.0 (cropped) - Related lab (田中智久研究室): “Bauteil Laserpoliert” Bestemrc / CC BY-SA 4.0 (cropped)
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