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Tada Lab
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A lab that uses electrochemistry to investigate how metals dissolve and corrode.
AboutAbout the lab
Understanding the environmental degradation of metal materials through science.
The Tada Lab studies the mechanisms by which metal materials dissolve and degrade in the environments where they are used.
It works with objects of vastly different sizes, from nanoscale catalysts to meter-scale structures.
Using electrochemical measurement methods, the lab investigates how corrosion progresses and builds the fundamentals that lead to corrosion protection and longer service life.
It also develops methods for evaluating corrosion and monitoring techniques for tracking its progress.
Key terms
- Corrosion
- A phenomenon in which a metal reacts with oxygen, water, and other substances in its environment, dissolves, and loses strength and function.
- Electrochemical impedance spectroscopy
- A method that measures how difficult it is for current to flow at different frequencies, in order to read out what is happening at an electrode surface.
- Stress corrosion cracking
- A phenomenon in which a metal under stress in a corrosive environment develops cracks that grow until it fails.
NewsLab news
A student received the Young Presenter Encouragement Award at the Symposium on Materials and Environments of the Japan Society of Corrosion Engineering
A student's research results were published in Copper and Copper Alloys, the journal of the Japan Society of Copper
Prof. Tada received the Technology Award from the Japan Society of Corrosion Engineering
A master's student received the Best Poster Award at an international symposium on marine corrosion
A student's research results were published in ACS Applied Nano Materials
ResearchResearch themes
The lab studies the dissolution reactions of alloy catalysts for fuel cells and of structural metal materials, as well as the mechanisms of degradation caused by corrosion. Using electrochemical measurement methods, it investigates targets from nanoscale catalysts to meter-scale structures, and applies the results to corrosion protection and longer service life.
*Illustrative imageHow fuel cell catalysts degrade
In polymer electrolyte fuel cells, even platinum alloy catalysts with excellent corrosion resistance dissolve little by little under the loads of starting and stopping a vehicle, and power generation performance declines. The lab applies loads that simulate operating conditions and investigates the degradation process using electrochemical methods.
*Illustrative imageCorrosion reaction mechanisms of metals
The lab investigates the reaction mechanisms and reaction rates of corrosion in carbon steel, zinc, stainless steel, aluminum alloys, tantalum, and other metals. The environments vary widely: not only aqueous solutions, but also beneath thin water films, in soil and concrete, and in high-temperature molten salts.
*Illustrative imageCorrosion evaluation and monitoring
Both the appearance and the rate of corrosion change over time. The lab develops methods for capturing ongoing corrosion, using techniques such as electrochemical impedance spectroscopy.
*Illustrative imageMechanisms of environmentally assisted cracking
When tensile stress is applied to a metal in a corrosive environment, cracks can form and grow, leading to fracture. With chemical plants and nuclear power plants in mind, the lab studies stress corrosion cracking of stainless steel and hydrogen embrittlement cracking of steel materials.
MembersFaculty
The members of the Tada Lab consist of faculty, doctoral, master's, and undergraduate students, and administrative assistants.As of 2026
- ProfessorEiji TadaPublications ↗
- Assistant ProfessorTakumi KosabaPublications ↗
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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: “20150926 IleDeSeinBrittany rustedMooringBollard DSC07958 PtrQs” PtrQs / CC BY-SA 4.0 (cropped)
- How fuel cell catalysts degrade: “Fuel Cell, Gemini, Cutaway - DPLA - f07bc58fc44676eb0e33c520a6aaf477 (page 8)” General Electric Co. (Lynn, MA) / CC0 (cropped)
- Corrosion reaction mechanisms of metals: “Stainless-steel-mild-steel” Photographed and uploaded by D3j4vu at en.wikipedia / CC BY-SA 3.0 (cropped)
- Corrosion evaluation and monitoring: “Reference 3000 Potentiostat” Rusty7724 / CC BY-SA 4.0 (cropped)
- Mechanisms of environmentally assisted cracking: “Stress-Corrosion-Cracking-Quench-Pipe” CEphoto, Uwe Aranas / CC BY-SA 3.0 (cropped)
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- Related lab (小林能直研究室): “Flaring of Converter Gas at Night” Aciarium / CC BY 4.0 (cropped)
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