Hydrothermal Processing for Ceramics



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Soft Processing of Advanced Ceramic Materials for Various

Functional Areas: Beyond the Synthesis of Nano-Particles
Masahiro YOSHIMURA

Promotion Center for Global Materials Research, Dept of Mater.,Sci. and Eng., National Cheng Kung University, Tainan,Taiwan: yoshimur@mail.ncku.edu.tw

Prof. Emeritus. Tokyo Institute of Technology, Japan :yoshimura@msl.titech.ac.jp

Keywords: Soft process,Ceramic,Synthesis,Particle,Film,Pattern,Solution
As well as organic and/or bio- materials, advanced inorganic(ceramic) materials have been used in wide area of applications like structural, mechanical, chemical, electrical, electronic, optical, photonic, biological, medical, etc. They have generally been fabricated by so-called high-technology, where high temperature, high pressure, vacuum, molecule, atom, ion, plasma, etc. have been used for their fabrications, because inorganic materials are difficult in shape forming and fixing due to their intrinsic rigidity and brittleness. Even though nano-sized particles of inorganic materials could be synthesized by low-energetic route, i.e.”soft chemistry” or “green chemistry”, their shape forming and fixing cost energetically and environmentally.

We have challenged to fabricate those advanced inorganic materials with desired shape/size/location,etc. directly in low energetic ways using aqueous solutions since 1989 when we found a method to fabricate BaTiO3 film on Ti substrate in a Ba(OH)2 solution by Hydrothermal Electrochemical[HEC] method at low temperatures of 60-200 C. We proposed in 1995 an innovative concept and technology, “Soft Processing” or “Soft Solution Processing,” which aims low energetic (=environmentally benign) fabrication of shaped, sized, located, and oriented inorganic materials in/from solutions. It can be regarded as one of bio-inspired processing, green processing, or eco-processing.1,2) When we have activated/stimulated interfacial reactions locally and/or moved the reaction point dynamically, we can get patterned ceramic films directly in solution without any firing, masking or etching. They can be called Direct Patterning methods which differ from previous patterning methods consisting of multi-step processes. The notable feature of Direct Patterning is that each reactant reacts directly on site, at the interface with the substrate. Therefore, the chemical driving force of the reaction, A+B=AB, can be utilized not only for synthesis but also for crystallization and/or consolidation of the compound AB. It is rather contrasting to general patterning methods where thermal driving force of firing is mostly used for the consolidation of the particles.3)

We have developed the Direct Patterning of CdS, PbS and CaWO4 on papers by Ink-Jet Reaction method and LiCoO2 by electrochemically activated interfacial reactions.3) Furthermore, we have succeeded to fabricate BaTiO3 patterns on Ti by a laser beam scanning and carbon patterns on Si by a needle electrode scanning directly in solutions.4) Recent success in TiO2 and CeO2 patterns by Ink-Jet Deposition, where nano-particles are nucleated and grown successively on the surface of substrate thus become dense even below 300 C3) will be presented.

References

1)MRS Bulletin,25[9],Sept. issue 2000, special issue for Soft Processing of Advanced Inorganic Materials ,Guest Editor:M. Yoshimura and J. Livage.

2)Yoshimura, M., J. Mater. Sci.,41 [5],1299-1306 (2006), 43[7]2085-2103(2008).

3)Yoshimura, M. and Gallage R., Solid State Electrochem., 12[7/8]775-782(2008).

4) Watanabe,T., Yoshimura, M. ,Thin Solid Film, 515, 2696-2699 (2006), Carbon, 44, 799-802 (2006). 5)Wu,J-J.,Liao,W-P.,Yoshimura,M. Nano Energy,On-line July 11,2013 .



CURRICULUM VITAE,

(April 13, 2012)



1. Name: Masahiro YOSHIMURA Sex: Male

2. Citizenship: Japanese

3. Birth: November 20, 1942, at Tokyo

4. Present address: 1) 54-2(3F),93 Dongning Rd, East District, Tainan City,70101 Taiwan

Cell Phone:81-(0)80-3406-1798)

2) 1­6­12, Terao-naka, Ayase, Kanagawa, 252-1132 Japan

(Tel/Fax: 81­467­77­0766)

5. Marital status: Married, three children

6. Profession: 1) Distinguished Chair Professor,

Director, Promotion Center for Global Materials Research,

Department of Materials Science and Engineering,

National Cheng Kung University,

No.1, University Road, Tainan City,70101,Taiwan

Tel:886-6-2757575 ext 62013, Fax :886-6-2346290, 886-6-276-0112

E-mail: yoshimur@mail.ncku.edu.tw

2) Professor Emeritus

Materials and Structures Laboratory, Tokyo Institute of Technology

E­mail: yoshimura@msl.titech.ac.jp

7. Education: 1961.4 ­ 1965.3: Tokyo Institute of Technology, Applied Chemistry Division

1965.4 ­ 1967.3: Tokyo Institute of Technology (Master course) M.Sc. in Eng

1967.4. ­ 1970.3: Tokyo Institute of Technology (Doctor course),D. Sc.in Eng.
8. Academic carriers:

April 170 ­ June 1978 Research Laboratory of Engineering Materials

Tokyo Institute of Technology

Nov. 1973 – Nov. 1974 Laboratoire des Ultra­Réfractaires, C.N.R.S

Odeillo, France (Director: Dr. M. Foex)

July 1974 ­ Aug. 1974 Centre de Recherches sur la Physique des Hautes Temperatures, C.N.R.S., Orleans, France

Dec. 1974 ­ May 1975 Laboratoire de Chimie Appliqee de l'Etat Solide

C.E.C.M., Vitry­sur­Seine, France

Sept. 1975 ­ Aug. 1977 Materials Science and Engineering Laboratory

Massachusetts Institute of Technology, Cambridge, Mass., U.S.A

July 1978 – June 1985 Associate Professor, Research Laboratory of Engineering Materials, Tokyo Institute of Technology

July 1985 – May 1996 Professor, Research Laboratory of Engineering Materials, Tokyo Institute of Technology

May, 1996March 2008 Professor, Materials and Structures Laboratory (name changed) , Tokyo Institute of Technology

July 1996 – March 2003 Director, Center for Materials Design

April 2008 -- Professor Emeritus

April 2008 – March 2009 Visiting Professor, Institute of Materials Research, Tohoku University, Sendai, Japan

July 2008 Visiting Professor, Dept. of Materials Sci.,University of Limerick, Limerick, Ireland

Sept. 2008 Visiting Professor, Non-metallic Materials, ETH, Zurich, Switzerland

Apr./May2009 Visiting Professor, Institute of Metal Research, CAS, Shenyang, China

Sept.-Oct. 2009 Visiting Professor,Univ. of Washington, Seattle, USA

Nov. 2009 Visiting Professor, National Cheng Kung University,

Tainan, Taiwan

Feb.2010 –June 2011 Visiting Chair Professor, National Cheng Kung University, Tainan, Taiwan

July 2011--- Distinguished Chair Professor, National Cheng Kung University, Tainan, Taiwan
9. Awards 1986 International Institute for Science of Sintering, IISS,Yugoslavia, Fellow

1987 Scientific Award, The Powder and Powder Metallurgy Society of Japan

1987 10th Richard M. Fulrath Award, The American Ceramic Society,

1990 Academician, The World Academy of Ceramics, Italy,

1991 Centennial Anniversary Academic Award,

The Ceramic Society of Japan

1993/4 Academic Award, The Ceramic Society of Japan

1994/5 Research Award, The Powder and Powder Metallurgy Society of Japan

1996 The American Ceramic Society, Fellow

2001 The International ECers Award, 7th European Ceramic Society

2002 IUMRS Somiya Award for International Collaborative Work,IUMRS

  2002 The G. C. Kuczynski Prize (Group member), IISS,Yugoslavia

2003 Honorary Member, Materials Research Society of India

  1. Thomson, ISI Highly Cited Researchers (in Materials Science)

  1. Tokyo Metropolitan Academic Award, Tokyo, Japan

  2.   Research Award, Ministry of Education, Culture & Science, Japan

  3. Lee Hsun Award, Institute of Metal Research, CAS, Shenyang, China

2011 Okazaki Memorial Award, Fulrath-Okazaki Foundation, Japan

2012 Honorable Permanent Resident Visa,(ROC)Taiwan
10. Publications: >700 papers in peer-reviewed Journals, 84 review papers, 3 books and 44 book

chapters, and other 80 papers. 30 patents.

Full lists of Publications available in

ISI Highlycited: http://isihighlycited.com > 11,700 International Citations for 514 cited papers,

h-index = 53, ISI Web of Science
11, International Meetings: 13 Organizing Chairs,55 Advisory/Organizing Committees,14 Prenary

Lectures & >130 Invited Talks . 
12. Editors: Solid State Science,1988-,Nano Letters(Am.Chem.Soc.),2002-2005, J. Nanomaterials, 2004-,etc.

Guest Eds: MRS Bull,Oct.1994 &Sept.2000,

Euro. J.Solid State and Inorg. Chem. 1995,

Solid State Ionics,152/154,2002,

J.Mater.Sci.2006&2007,etc.

13. International Activity: Founding President(2006-2008), International Solvothermal and Hydrothermal Association(ISHA),

President of the Advisory Board(2010-2014),The World Academy of Ceramics (WAC). Chairman of the Nomination Committee,2002,2004 & 2006

Officer,International Union of Materials Research Societies(IUMRS): Senate Member(Advisory Members),Audit Elect 2007-2008,Former President of MRS-Japan),

Fellow : The American Ceramic Society,1995/1996

Honorary Member: MRS-India

Member of the International Institute of Science of Sintering, Serbia.

etc.

Cooperated with 24 visiting Professors(12 from abroad), 31 Postdoctoral Researchers, (19 from abroad), 12 visiting Researchers from abroad in Tokyo Institute of Technology.

Now many staff in National Cheng Kung University, Tainan, Taiwan
14. Teaching Activities: Supervised 56 Ph.D( 16 foreigners) Students and candidates,>70 Master

Students, 30 Research Students,
15. Language:

English( International Level), French( Communication Level), Japanese (Mother Language)
16. Main Research Subjects:

1) Soft Processing (or Soft Solution Processing) for Ceramic Materials: Nano -Particles, Whiskers, Films, Patterns and Bulks.

2Hydrothermal/Solvothermal Processing for Inorganic Materials.

3) Hydrothermal Carbons.

4) Growing Integration Layer[GIL] Methods for Coating/Joining/Bonding of Ceramics on Metallic Materials.

5) Phase Stability and Meta-Stability of Zirconia and Related Compounds.

6) Synthesis and Phase/Valence Stability of Perovskite Phases.

7) Nano-Composites Ceramics via Melt/ Annealing of Eutectic Melts

8)Bio-Inspired Processing for Inorganic Materials for Sustainable Societies

9) Bio-Materisls,Bio-Nanomaterials :Fabrication and Evaluation

10) Nano-Carbons by Soft Processing


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