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Extreme Environment Materials Lab
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A lab that studies the relationship between hydrogen and materials in extreme environments such as fusion reactors and nuclear reactors.
AboutAbout the lab
Plasma, radiation, hydrogen, and materials
The Extreme Environment Materials Lab studies how hydrogen behaves inside materials in environments exposed to high temperatures and radiation, such as fusion reactors and nuclear reactors.
Centering on tritium, the hydrogen isotope that serves as fuel for fusion reactors, the lab's work also covers materials related to hydrogen energy and the effective use of radiation.
Hydrogen is environmentally friendly, but it also causes problems such as hydrogen embrittlement, which degrades the materials it is used with.
On the lab's website, the lab is introduced under the name "Hashizume Lab."
Key terms
- Hydrogen isotopes
- Variants of hydrogen: protium, deuterium, and tritium. Differences in mass can cause differences in how they move through materials.
- Tritium
- A hydrogen isotope that serves as fuel for fusion reactors. Also known as hydrogen-3.
- Hydrogen embrittlement
- A phenomenon in which hydrogen causes a material to degrade. It is one of the problems of using hydrogen.
- Proton conductor
- A material that transports hydrogen ions (protons). This lab studies it as a hydrogen energy material.
ResearchResearch themes
The inside of a fusion reactor or nuclear reactor is an environment exposed to high-temperature plasma, high-energy ions, and radiation. The lab investigates how hydrogen behaves inside materials used in such environments, aiming to lead to the search for and development of new materials and the development of energy that uses hydrogen.
*Illustrative imageHydrogen as Fuel for Fusion Reactors
The research centers on hydrogen (tritium) used as fuel for fusion reactors. Its subjects are plasma-wall interactions, the physics and chemistry of the divertor, and tritium fuel recycling.
*Illustrative imageHydrogen-Material Interactions
As research related to hydrogen energy, the lab investigates, from both physical and chemical perspectives, how hydrogen dissolves in, diffuses through, and becomes trapped in materials, as well as hydrogen embrittlement.
*Illustrative imageEffective Use of Radiation
This research puts radiation to good use. Keywords include PN junction batteries, detoxification of harmful substances, hydrogen production, and decomposition of carbon dioxide.
*Illustrative imageHigh-Temperature Proton Conductors
Targeting proton conductors, which are hydrogen energy materials, this research clarifies in what state hydrogen exists and how it is transported.
MembersFaculty
The members of the Extreme Environment Materials Lab consist of faculty members, administrative assistants, and doctoral, master's, and undergraduate students.As of 2021
- Associate ProfessorKenichi Hashizume
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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: “Scylla I in 1958” Unknown LANL photographer / Public domain (cropped)
- Hydrogen as Fuel for Fusion Reactors: “Nuclear Fusion Reactor ( )” Steve Jurvetson from Los Altos, USA / CC BY 2.0 (cropped)
- Hydrogen-Material Interactions: “Metal Hydride for Hydrogen Storage-Ovonic” Sandia National Laboratory / Public domain (cropped)
- Effective Use of Radiation: “Radiation vaporiser” Steeve taylor / Public domain (cropped)
- High-Temperature Proton Conductors: “SOFC solid oxide fuel cell” Luketheslovak / CC BY-SA 4.0 (cropped)
- Related lab (粒子線物理工学研究室): “Particle accelerator, Eotvos Lorand University North Block, 2016 Ujbuda” Globetrotter19 / CC BY-SA 3.0 (cropped)
- Related lab (物質
移動反応工学研究室): “Hydrogen (Element - 1)” James St. John / CC BY 2.0 (cropped) - Related lab (ナノ構造解析学研究室): “Morpho helena wing detail” OKJaguar / CC BY-SA 4.0 (cropped)
- Related lab (ナノ物質合成科学): “Interaction of acetylcholinesterase with silver nanoparticle” Semen Yesylevskyy / CC BY 4.0 (cropped)
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