- 追加された行はこの色です。
- 削除された行はこの色です。
#author("2020-12-23T09:21:28+09:00","","")
*Research concepts [#kbc67dce]
&size(18){%%%Materials Science of "Entropy Control"%%%};
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-01.png,left,around,nowrap,photo);
There are many states including equilibrium and metastable states which are fromed from non-equilibrium (high-energy states, excited states).~
Various materials can be obtained by the microstructure control based on "Phase Stability Control".~
The important targets are summarized by the following two points;~
(1) How to achieve the non-equilibrium state?~
(2) How to control to change from non-equilibrium to equilibrium/metastable states?~
To achieve the development of new materials based on "Phase Stability Control", the followings three techniques are investigated;~
(1) Alloy design: Thermodynamic calculation, ab-initio calculation, Data base science.~
(2) Microstructure analysis: Electron microscopy, In-situ observation, trans-scale observation~
(3) Microstructure control: Solidification and casting, Electron Irradiation~
#freeze
#author("2023-05-19T08:02:08+09:00","","")
*Research topics [#hc584705]
**(1) Network tele-microscopy [#fae1f9fa]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-01.PNG,left,around,nowrap,photo);
-''[[Network tele-microscopy>Network tele-microscopy]]''
#clear
~
~
**(2) Electron microscopy + Synchrotron radiation [#s959714f]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-02.PNG,left,around,nowrap,photo);
-''[[Electron microscopy + Synchrotron radiation>Electron microscopy + Synchrotron radiation]]''
#clear
&size(18){%%%Materials Science and Engineering for "Regional Revitalization"%%%};
#ref(https://t-nagase.sakura.ne.jp/pict-new/KenkyuNew-00-02.png,left,around,nowrap,photo);
「地域の得意分野を活かす・既存汎用装置を用いる」~
に基づいて開発された材料は~
(1) 既存汎用装置を使えばすぐに地域で応用展開できる~
(2) その地で培われたノウハウを使えば差別化できる~
の特徴を持ちます。~
少子高齢化という避けられない壁にぶつかる中、~
日本における研究リソースはますます厳しくなります。~
この概念に基づく材料開発は、~
少子高齢化や人口減少などの社会問題や経済問題に直面する地域に夢と希望を与え、~
「未来を拓く科学技術の創造」と「社会の持続的発展」を~
ともに実現する新たな材料開発の一例であるとも言えます。~
**(3) Solidification and Casting : Materials development [#w79145b2]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-03.PNG,left,around,nowrap,photo);
-''[[Solidification : Cast iron>Cast Iron]]''
-''[[Solidification : Ti Alloys>Ti casting alloys]]''
-''[[Solidification : Silidices for thermoelectronic materials>Silidices for thermoelectronic materials]]''
-''[[Solidification : Alloy design of casting materials by machine learning>Alloy design of casting materials by machine learning]]''
-''[[Liquid phase separation]]''
-''[[Melt-extraction methods for wire fablication]]''
-''[[In-situ TEM observation of the initial process of dendrite growth]]''
#clear
~
~
&size(18){%%%Education for the development of new materials : "solidification and casting"%%%};
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-03.png,left,around,nowrap,photo);
「金属新素材開発 と 地方創生」を達成するためには、~
金属産業が地域の歴史と地理に根差した産業であることを理解し、~
その地で培われた技術とノウハウを活用していくことが~
必要不可欠です。~
「次世代金属材料開発のための地域教育」~
ともいうべき、~
新たな教育法の検討、新たな教育教材の開発~
を行っています。~
**(4) Solidification and Casting : Additive manufacturing (3DP) [#qc1c9128]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-04.PNG,left,around,nowrap,photo);
-''[[Additive manufacturing : Ti alloys>Additive manufacturing of Ti alloys]]''
-''[[Additive manufacturing : High Entropy Alloys>Additive manufacturing of High Entropy Alloys]]''
-''[[Additive manufacturing : AM-Infiltration method>Additive manufacturing - Infiltration (AM-Infiltration) method]]''
#clear
~
~
*Researchs [#hc584705]
**(1) Entropy control : High Entropy Alloys [#ud7504b0]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-04.png,left,around,nowrap,photo);
**(5) Solidification and Casting : Development of teaching materials [#tc4933c5]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-05.PNG,left,around,nowrap,photo);
-''[[Experiences of casting]]''
#clear
**(6) Entropy control : High Entropy Alloys [#ud7504b0]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-06.PNG,left,around,nowrap,photo);
-''[[High Entropy Alloys]]''
-''[[High Entropy Cast Iron]]''
-''[[High Entropy Alloys for metallic biomaterials (BioHEAs)]]''
-''[[Light-Weight High Entropy Alloys]]''
-''[[High Entropy Brass]]''
-''[[Eutectic High Entropy Alloys]]''
-''[[High Entropy Alloys with HCP structure]]''
-''[[Ti-Al-based High Entropy Alloys]]''
-''[[Solidification microstructure in High Entropy Alloys]]''
-''[[Liquid phase separation in High Entropy Alloys>Liquid phase separation#jafae7ff]]''
-''[[Irradiation damage in High Entropy Alloys]]''
#clear
**(2) Entropy control : Electron knock-on effect by fast electron irradiation [#w70d0513]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-05.png,left,around,nowrap,photo);
**(7) Entropy control : Electron knock-on effect by fast electron irradiation [#w70d0513]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-07.PNG,left,around,nowrap,photo);
-''[[High Voltage Electron Microscopy]]''
-''[[Electron knock-on : Solid state amorphization (SSA)]]''
-''[[Electron knock-on : Crystallization (Grass-to-Crystal transition)]]''
-''[[Electron knock-on : C-G-C transition (Crystal-to-Grass-to-Crystal transition)]]''
#clear
**(3) Entropy control : Electronic excitation by electron irradiation [#g31ed1b1]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-06.png,left,around,nowrap,photo);
**(8) Entropy control : Electronic excitation by electron irradiation [#g31ed1b1]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-08.PNG,left,around,nowrap,photo);
-''[[Metal/SiOx interface : Synthesis of silicides>Synthesis of silicides at metal/SiOx interface]]''
-''[[Metal/SiOx interface : Amorphous phase foramtion>Formation of metallic amorphous at metal/SiOx interface]]''
-''[[Metal/SiOx interface : Crystallization of amorphous phase>Crystallization of metallic amorphous at metal/SiOx interface]]''
#clear
**(4) Entropy control : "Conctituent elements" + "lattice defect" [#i18910e1]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-07.png,left,around,nowrap,photo);
**(9) Entropy control : "Conctituent elements" + "lattice defect" [#i18910e1]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-01-09.PNG,left,around,nowrap,photo);
-''[[Irradiation damage in High Entropy Alloys]]''
#clear
**(5) Solidification (Casting) and materials development [#w79145b2]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-08.png,left,around,nowrap,photo);
-''[[Solidification : Cast iron>Cast Iron]]''
-''[[Solidification : Ti Alloys>Ti casting alloys]]''
-''[[Solidification : Silidices for thermoelectronic materials>Silidices for thermoelectronic materials]]''
-''[[Liquid phase separation]]''
-''[[Melt-extraction methods for wire fablication]]''
-''[[In-situ TEM observation of the initial process of dendrite growth]]''
#clear
**(6) Solidification (Additive manufacturing) and materials development [#qc1c9128]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-09.png,left,around,nowrap,photo);
-''[[Additive manufacturing : Ti alloys>Additive manufacturing of Ti alloys]]''
-''[[Additive manufacturing : High Entropy Alloys>Additive manufacturing of High Entropy Alloys]]''
#clear
**⑦ Development of solidification / casting experience teaching materials [#tc4933c5]
#ref(https://t-nagase.sakura.ne.jp/EN/pict-new/KenkyuNew-00-10.png,left,around,nowrap,photo);
-''[[Experiences of casting]]''
#clear
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