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Fundamental Glass Science Lab
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The lab levitates materials in mid-air to create glasses that conventional wisdom says are impossible.
AboutAbout the lab
Levitating and melting to create new glass
The Fundamental Glass Science Lab was established in April 2023 as an endowed laboratory funded by Nippon Electric Glass Co., Ltd.
Using containerless processing, in which materials are levitated in mid-air, the lab synthesizes "new glasses" with compositions that were previously unthinkable.
Through advanced glass structure analysis using quantum beam measurements, computational science, and information science, the lab clarifies at the atomic and electronic level how functions arise.
By pursuing basic research on glass from multiple angles, the lab aims to establish new theoretical foundations for glass science and to train the next generation of glass researchers and engineers.
Key terms
- Containerless processing
- A synthesis method in which a molten material is cooled and solidified while levitated in mid-air, without touching a container
- Supercooled state
- A state in which a liquid stays liquid without solidifying even below its melting point. Because containerless processing avoids contact with a container, this state can be maintained down to deep supercooling
- Metastable phase
- A crystalline phase that remains in a different structure even though a more stable form exists
NewsLab news
A paper on the mechanical properties and structure of alkaline-earth aluminosilicate glasses was published in J. Phys. Chem. B
A paper investigating bond-angle distributions in silica polymorphs was published in J. Ceram. Soc. Japan
A paper on broadband infrared emission from glass-ceramics containing Ni2+ was published in Materials Advances
Professor Atsunobu Masuno received the Ceramic Society of Japan's Academic Award for fiscal 2024
ResearchResearch themes
Using containerless processing, in which a melt is cooled and solidified while levitated in mid-air, as its main synthesis method, the lab creates glasses and metastable phases that could not be obtained before. It has produced excellent materials, including glasses with an ultrahigh refractive index, an ultrahigh elastic modulus, and exceptional resistance to cracking.
*Illustrative imageCooling and solidifying without a container
When a melt is in contact with a container wall, crystals begin to grow from there. In containerless processing, there is no contact interface, so the melt can stay in a deeply supercooled state without crystallizing, allowing materials that could not be obtained before to solidify.
*Illustrative imageLevitating with gas and melting with a laser
The lab builds its own gas levitation furnaces, in which a sample placed on a nozzle is levitated by gas blown from below and melted with a CO2 laser.
*Illustrative imageWidening the compositional range for glass formation
It has long been thought that glass does not form when there are few network-forming oxides, but containerless processing greatly expands that range.
*Illustrative imageHard glass that resists cracking
Even though glass is hard, once it gets scratched, cracks start from the scratch and it breaks. The lab found that mullite glass synthesized by containerless processing has a high dielectric constant yet is extremely resistant to cracking, and is investigating the mechanism.
MembersFaculty
The members of the Fundamental Glass Science Lab consist of faculty, researchers, doctoral and master's students, and secretaries.
- Program-Specific ProfessorAtsunobu Masuno
- Program-Specific Associate ProfessorNobuaki Terakado
- Program-Specific Assistant ProfessorYuta Shuseki
- Program-Specific Assistant ProfessorManabu Watanabe
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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: “Electrostatic Levitation of a Titanium-Zirconium-Nickel Alloy” NASA/MSFC/Emmett Given / Public domain (cropped)
- Cooling and solidifying without a container: “THE INTERIOR OF THE 2500 DEGREE F. FURNACE WHERE CRUSHED BOTTLES ARE MADE INTO MOLTEN GLASS. PART OF A NEW GLASS... - NARA - 543707” Bill Gillette / Public domain (cropped)
- Levitating with gas and melting with a laser: “Aerodynamic levitation apparatus” Lawrie.skinner / Public domain (cropped)
- Widening the compositional range for glass formation: “Hyalite opal 2” James St. John / CC BY 2.0 (cropped)
- Hard glass that resists cracking: “Mullite-655833” Ralph Bottrill / CC BY 3.0 (cropped)
- Related lab (Interface Control Engineering Lab): “Zeolite Mordenite (with Al substitution)” Spacegroup143 / CC BY-SA 3.0 (cropped)
- Related lab (Isotope Utilization Chemistry Lab): “ElementCollection” Scientific29 / CC BY-SA 3.0 (cropped)
- Related lab (Functional Polymer Synthesis Lab): “Rotaxane Crystal Structure ChemComm page493 2001 commons” M stone at English Wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Solid State Chemistry Lab): “Copper-hydride-from-xtal-3D-SF” CCoil (talk) / CC BY 3.0 (cropped)
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