Jianding Yu Ph.D

Academic title:Professor

Phone:021-5241-2503

E-mail: yujianding@mail.sic.ac.cn

Address:1295 Dingxi Road, Shanghai, P.R.China

Postal Code:200050

Website:-

Resume:

Education: 

　　1975 -1978   Shanghai Jiao Tong University    Material science   

　　1991 -1993   Tokyo Institutet of Technology    Material Science  M.E. 

　　1993 -1996   Tokyo Institutet of Technology    Material Science  Ph.D 

Professional Experience 

　　1978-1988: Shanghai Aviation Industrial School , lecturer 

　　1996-1997: Japan New Energy and Industrial Technology Development Organization, Researcher  

　　1997-1999: National Space development agency, Scientist  

　　1999-2003: Chiba Institute of Technology,  Associate Professor  

　　2007-2012: Japan Aerospace Exploration Agency, Senior Scientist    

　　2012-     : Shanghai Institute of Ceramics, Chinese Academy of Sciences, Senior Scientist 

Research: 

By using the containerless processing on ground and in microgravity condition, a series of functional material with special physical was developed. 

Containerless solidification of BiFeO3 has been carried out in microgravity with an electrostatic levitation furnace on board a sounding rocket. This was the first time the ELF was used in microgravity to study the solidification behavior of oxide insulator material. A spherical BiFeO3 specimen with a diameter of 5 mm was laser heated and solidified in an oxygen and nitrogen mixture atmosphere. Containerless processing effectively promoted the undercooling of the BiFeO3 phase. In the microgravity experiment, an anomalous fine cellular microstructure appeared due to high undercooling. 

Oxygen-deficient hexagonal BaTiO3 crystal was successfully synthesized by containerless processing. The resulting material exhibited a giant dielectric constant e (> 100000) with a loss component tand of about 0.1 at room temperature. The e showed a weak temperature dependence in the 70 K to 300 K range and a dramatic drop by 2 orders of magnitude below 70 K.  　　

A 2-mm diameter glassy sphere of ferroelectric BaTi2O5 was fabricated by containerless processing, which exhibits unusual high dielectric response during crystallization 5 and a high refractive index of 2.14. Furthermore, lanthanide elements can be doped into the glassy structure to enhance GRI to 2.24 and create strong upconversion luminescence. The high refractive index offered a new opportunity for developing some crucial optical component, such as solid immersion lens used in the readout of optical disc. It was reported that a 1-mm diameter diamond solid immersion lens with refractive index of about 2.4 enables the storage capacity of Blu-ray disk up to 150 GB. 

A electrostatic levitation system was developed. It can be used in several studies relating to thermo-physical property measurements, solidification and nucleation ,glass formation , neutron scattering investigation for the material with meting point higher than 3000°C  


Publications: 

  1. Atsunobu Masuno; Chikako Moriyoshi; Teruyasu Mizoguchi; Toshihiro Okajima; Yoshihiro Kuroiwa; Yasutomo Arai; Jianding Yu; Hiroyuki Inoue; Yasuhiro Watanabe “Stabilization of metastable ferroelectric Ba1-xCaxTi2O5 by breaking Ca-site selectivity via crystallization from glass” Scientific Reports ,10/22/, pp.1-6,2013 
  2. Jiao Duan , Yan Liu , Xiuhong Pan , Yubo Zhang , Jianding Yu , Kiyotaka Nakajim , Hiroki Taniguchi “High photodegradation efficiency of Rhodamine B catalyzed by bismuth silicate nanoparticle” Catal.Commun. , vol. 39, pp. 65–69,2013 
  3. Zhang Minghui, Yu Jianding, Pan Xiuhong, Cheng Yuxing, Liu Yan, “Increase of the blue upconversion emission in Tm3+/Yb3+ co-doped titanate glass–ceramics” Journal of Inorganic Materials,vol. 28, pp. 896-900,2013 
  4. Yu Xing Cheng, Gui Sheng Xu, Jian Ding Yu, Xiu Hong Pan, Ming Hui Zhang, Yan Liu “Thermal and Optical Properties of High Refractive Index xNb2O5-(1-x)La2O3 Glasses Prepared by Aerodynamic Levitation Method” Materials Science Forum，vol. 749, pp. 255-259,2013 
  5. 张龙； 张曙光； 余建定； 李建国 “气动悬浮冷速控制及Al-7.7Ca共晶合金的凝固组织” 金属学报vol.49(4), pp. 451-456 ,2013 
  6. C. Wu, M. Zhang, D. Zhai, J. Yu, Yan Liu, Huiying Zhu, Jiang Chang. “Containerless processing for preparation of akermanite bioceramic spheres with homogenous structure, tailored bioactivity and degradation” J. Mater. Chem. B., pp.1019-1026, 2013 
  7. Y. Chen, G. Xu, J. Yu, X. Pan, M. Zhange and Y. Liu “Thermal and Optical Properties of High Refractive Index xNb2O5-(1-x)La2O3 Glasses Prepared by Aerodynamic Levitation Method” Materials Science Forum 749,pp 255-259, (2013) 
  8. S. Yoda, J. Yu, M.V. Kumar, “Nano-structure formation of an oxide ceramics with unprecedented magnetization by supercooling”, Appl. Phys. Lett. 100, pp102902-05, 2012 
  9. M. V. Kumar, K. Kuribayashi, K. Nagashio, T. Ishikawa, J. Okada1, J. Yu, S. Yoda, and Y. Katayama  “Real-time x-ray diffraction of metastable phases during solidification from the undercooled LuFeO3 melt by two-dimensional detector at 1 kHz” Appl. Phys. Lett. 100,pp 191905-08, 2012 
  10. M. V.  Kumar1,K. Kuribayashi, J. Yu, J.T. Okada, T. Ishikawa “Microstructure and Magnetic Properties of Metastable RFeO3(R:Rare-earth element) Formed from Undercooled Melt” J. Amer. Cera. Soc. 96, pp995-1002,2013 
  11. A. Masuno, Y. Watanabe, H. Inoue1, Y.Arai, J. Yu, and M. Kaneko “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing Phys”. Status Solidi C 9, No. 12,pp 2424–2427, 2012  
  12. M. Zhang, Y. Liu, J. Yu, X. Pan, S. Yoda“A novel upconversion Ta2-La2O3-Ta2O5 bulk glass co-doped with Er3+/Yb3+ fabricated by contanerless processing” Materials Letters,66, pp367-369,2012 
  13. X. H. Pan, J. Yu, Y. Liu, S. Yoda, M. H. Zhang, F. Ai, F. Jin,H. M. Yu, and W. Q. Jin, “Infrared to visible upconversion luminescence in Er3+/Yb3+ doped titanate glass prepared by containerless processing”, Journal of Luminescence, 132, pp1025-1029, 2012. 
  14. M. Kaneko, J. Yu, A. Masuno, H. Inoue, M.V. Kumar, O. Odawara, S. Yoda, “Glass Formation in LaO3/2-TiO2 Binary System by Containerless Processing”, J. Amer. Cera. Soc. 95 (1), 79-81, 2012. 
  15. A. Masuno, Y. Kikuchi,  H. Inoue, J. Yu, Y. Arai, “Giant Second Harmonic Generation from Metastable BaTi2O5” Applied Physics Express, V 4, 4, pp042601--3 , 2011. 
  16. X. H. Pan, J. Yu, Y. Liu, M. H. Zhang, “Upconversion fluorescence in Nd3+/Yb3+ co-doped titanate glasses prepared by containerless method”, J. Materials Research, 26, pp2907-2911 2011. 
  17. X. H. Pan, W. Q. Jin, Y. Liu, F. Ai, F. Jin and J. J. Xie, “Optical and atomic force microscopic study on step bunching in BaB2O4 crystal growth”, Chinese Physics B, 20, pp028102-5,2011. 
  18. X. H. Pan, J. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method”, Journal of Alloys and Compounds, 509, pp7504-7507 ,2011. 
  19. W. Wen, F. Miyamaru, M. W. Takeda, J. Yu and P. Sheng “Single-phase electrorheological effect in microgravity”, Soft Matter,pp 7198-7200, 2011. 
  20. H. Natsui, C.Moriyoshi, F. Yoshida, Y. Kuroiwa, T. Ishii, O. O Odawara, J. Yu, and S. Yoda, “Nanosized hexagonal Mn- and Ga-doped BaTiO3 with reduced structural phase transition temperature”, Appl. Phys. Lett. 98, pp132909-11,2011.  
  21. Moriyoshi Chikako; Miyoshi Satoru; Kuroiwa, Yoshihiro; Yu Jianding;, Arai Yasutomo, Masuno Atsunobu; “Charge Density Study of Metastable State in BaTi2O5 with Fivefold Coordinated Ti” Japanese Journal of Applied Physics, V 49, 9, pp. 09ME10-01-04 ,2010. 
  22. J. Yu, S. Yoda, A. Masuno, H. Natsui, M. Kaneko “Structure of Glassy and Metastable Crystalline BaTi2O5 Fabricated Using Containerless Processing” Ferroelectrics, 402, pp130-136 ,2010. 
  23. HIDESADA NATSUI, JIANDING YU, SATOSHI. HASHIMOTO, MITSURU ITOH, OSAMU ODAWARA, Diffusion Behavior of Oxygen in the Hexagonal BaTiO3 Single Crystal Grown by FZ Method. Ferroelectrics, 403, pp225-229,2010 
  24. J. Yu, S. Kohara, S. Nozawa, K. Itoh, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive Structural Study of Glassy and Metastable Crystalline BaTi2O5”, Chem. Mater. 21, pp259-263 ,2009. 
  25. J. Li, T. Ishikawa, J. T. Okada, Y. Watanabe, J. Yu, S. Yoda, Z. Yuan. “Noncontact thermophysical property measurement of liquid cerium by electrostatic” Journal of Materials Research, 24 (7) pp2449-2452, 2009