工学部_研究紹介_2020_英語版

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Synthesis of Novel MaterialsUsing Ceramic ProcessingCeramicmaterialshavemanyusefulproperties,buttheir“brittleness”and“hardmachinability”thatareessentiallytheirweakpointslimittheirapplication.TarutaLabstudiesthesynthesisofceramiccompositesusingcarbonnanotubes(CNTs)andmicasinordertoimprovethe“brittleness”ofceramicsandrealizethemachinableceramicswithhighmechanicalproperties.Micashavebeenappliedinvariousfields,suchascosmeticsandpaintsetc.Inthesedepartments,micashavebeenstudiedformorethan40years.TakingOversuchstudies,TarutaLabinvestigatesthenovelfunctionssuchasionicconductivityandluminescence.TheCNTs/ceramiccompositesandmica/ceramiccompositeshavebeenstudiedinordertodevelophighperformancebio-ceramicssuchasartificialjointswithlongerlife,bioactiveartificialboneswithhighmechanicalpropertiesanddentalceramicmaterialswithmachinability.Inaddition,ionicconductivityofmanytypesofmicashasbeenstudiedtoapplymicasassolidelectrolytesforfuelcells.Thetransparentmicaglass-ceramicsdopedwithrareearthmaybeappliedasnovelluminescentmaterialsforwhiteLEDbecausetheyemitredandbluelights.Professor He received his doctor’s degree of engineering from Tokyo Institute of Technology. He is specialized in inorganic chemistry and inorganic materials chemistry.Materialschemistrycoversabroadrangeofsciences,sostudentscanadaptinmanyindustrialfields.TarutaLab.alumniworkinmanydifferentkindsofindustries,particularlyinthefieldofmaterialsandchemistry.2m5mmThis photo shows that CNTs prevent the propagation of cracks in ceramics..This zirconia ceramics in the photo can be machined with conventional drilling tools..Luminescence of transparent mica glass-ceramics doped with rare earth under UV light.EmissionofbluelightunderUVlightUndervisiblelight5mmTransmission electron microscopic photograph of transparent mica glass-ceramics.In the FutureAfter GraduationMaterialsChemistrySeiichi TarutaPortablewaterpurifierbottle“NaTiO”(releasedonDecember25th,2018)equippedwithflux-growncrystalstoremoveheavymetalions.(Top-leftinset;ShindaiCrystalLogo)Thefutureopenedby“ShindaiCrystal”.Katsuya TeshimaMaterialsChemistryIn the FutureAfter Graduation『ShindaiCrystal』InTeshimalaboratory,wecreatecuttingedgesupra-materialsbylearningcrystal&mineralgrowthmechanismsinthenaturalenvironment.Aclassicalcrystalgrowthtechnique“Fluxmethod”iswellknownasourlaboratorystrength,and“ShindaiCrystal”(singlecrystalmaterial)waslaunchedfromourlaboratorybyusingthistechnique.Inparticular,wehavebeensuggesting“ShindaiCrystal”forapplicationsofnext-generationbatteries(e.g.,all-solid-stateLIBs),solarhydrogenproduction(i.e.,visible-light-drivenphotocatalyst),waterpurifierdevices(i.e.,ionexchanger)andbiologicaldevicesandmore.Highqualitycrystals,usedinsemiconductorsandmanyotherapplications,areindispensablematerialsinourlives,becausesinglecrystalshavepotentialstoexhibittheirnear-marginalperformances.Thisisaveryimportantconceptinthematerialdevelopmentofsolid-stateenergy-conversiondevices,next-generationenergystorage&production,solarhydrogenproduction,andpurificationofhazardousmatters.Graduatesfromourlaboratoryarecommittedtodevelopingecomaterials&ecotechnologies.Therefore,theyareactiveasresearchersandengineersinvariousfieldsrelatingtoautomobiles,energy,electronicsaswellasmaterialsscienceandchemistry.ProfessorHe completed doctoral degree in Nagoya Univ. and started to work as an assistant professor in Shinshu Univ. in 2005. He has been assigned at present post from 2011. 【Takeoff! ShindaiCrystal】11