智陈博士： 今天美国俄亥俄州立"阿克隆大学"召开年度发明表彰会议，学校在2011年获得美国专利中评出了三项发明专利，校长代表学校向获得者授“奖牌”。其中之一是我们的发明专利 - “无铅铁电与电致伸缩陶瓷材料”，发明人：陈昂博士，智宇博士。该发明也已被授予日本国发明专利，在中国与欧盟的专利权正在审议中。

该项专利是旨在发明一种能替代现在广泛应用的包含高浓度铅元素的电子材料，因为，铅元素对人体，特别对儿童很有害。我们在研究过程中发现了一种高性能的无铅电子陶瓷材料，它具有广泛的应用前景。我们在这种材料的物理研究方面也发表了多篇文章，许多文章是在国际的权威物理学、材料学杂志《物理评论》，《应用物理快讯》《先进材料》上发表。这些文章在国际上被广泛引用，比如，其中一篇我与陈昂博士合作的在《物理评论》发表的文章已经被200多篇的国际SCI杂志的文章所引用。智宇博士、陈昂博士也是这些杂志及其他许多杂志的审稿人。

http://s11/middle/69229a31gbd83cea30a3a&690

智宇 博士 发表科学论文 目录

Dr.  ZHI Yu

  100 余篇。10篇在《物理评论》，20余篇在《应用物理快讯》，近20篇在《应用物理杂志》发表。

 

1.    ZHI Yu （智宇）, and Chen Ang, Dielectric relaxor behavior of Cd₂Nb₂O₇, Applied Physics Letters, 85[5], 801-3 (2004).

2.   ZHI Yu （智宇）, Chen Ang, L. E. Cross, A. Petchsuk, and T. C. Chung, Eelectroactive strain properties of poly(vinylidene fluoride – trifluoroethylene – chlorotrifluoroethylene) terpolymers,  Applied Physics Letters, 84[10], 1737-9 (2004).

3.    ZHI Yu （智宇）and Chen Ang, Electroactive fluorinate-based polymers: Ferroelectric and dielectric properties, Journal of Applied Physics, 96[12], 7476 – 84 (2004).

4.     ZHI Yu （智宇）, Chen Ang, E. Furman, and L. E. Cross, Dielectric relaxation and strain behavior of 95.5% Pb(Zn_1/3Nb_2/3)O₃ – 4.5% PbTiO₃ single crystals at cryogenic temperatures, Applied Physics Letters, 82[5], 790-792 (2003).

5.   ZHI Yu （智宇）, Chen Ang, RuYan Guo, and A.S. Bhalla, Dielectric properties and tunability of (Sr,Bi)TiO₃ with MgO additive, Materials Letters, 57[19], 2927-31 (2003).

6.   ZHI Yu （智宇）and Chen Ang, Dielectric and Conduction Anomalies in La-doped SrTiO₃ with Suppression of Quantum-Paraelectric, Applied Physics Letters, 80[4], 643-5 (2002).

7.    ZHI Yu （智宇）and Chen Ang,  Maxwell – Wagner polarization in Ceramic Composites BaTiO₃ – (Ni_0.3Zn_0.7)Fe_2.1O₄, Journal of Applied Physics, 91[2], 794-797 (2002).

8.    ZHI Yu （智宇）and Chen Ang, Electrical and Magnetic Properties of BaTiO₃ – (Ni_0.3Zn_0.7)Fe_2.1O₄ Composites, Journal of  Materials Science: Materials in Electronics, 13, 193-196 (2002).

9.   ZHI Yu （智宇）, Chen Ang, Ruyan Guo, and A.S. Bhalla, Dielectric properties and high tunability of Ba(Ti_0.7Zr_0.3)O₃ ceramics under dc  bias, Applied Physics Letters, 81[7], 1285-87 (2002).

10. ZHI Yu （智宇）, Chen Ang, Ruyan Guo, A.S. Bhalla, and L. E. Cross, Dielectric loss modes of SrTiO₃ thin films deposited on different substrates, Applied Physics Letters, 80[6], 1034-36 (2002).

11. ZHI Yu （智宇）, Chen Ang, Ruyan Guo, and A.S. Bhalla, Ferroelectric-relaxor behavior of Ba(Ti_0.7Zr_0.3)O₃, Journal of Applied Physics, 92[5], 2655-57 (2002).

12. ZHI Yu （智宇）, Chen Ang, Ruyan Guo, and A.S. Bhalla, Piezoelectric and strain properties of Ba(Ti_1-xZr_x)O₃ ceramics, Journal of Applied Physics, 92[3], 1489-93 (2002).

13. Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric behavior and “core-shell” microstructure in (Sr,Bi,Na)TiO₃  solid solutions, Journal of Applied Physics, 107[10],  May, 2010.

14. Chen Ang（陈昂）and ZHI Yu （智宇）, High remnant polarization in (Sr_0.7Bi_0.2)TiO₃ - (Na_0.5Bi_0.5)TiO₃ solid solutions, Applied Physics Letters, 95, 232908 (2009).

15. Chen Ang（陈昂）and ZHI Yu （智宇）, High capacitance-temperature sensitivity and “giant” dielectric constant in SrTiO₃, Applied Physics Letters, 90, 202903 (2007).

16. ZHI Yu （智宇）, Chen Ang, Ruyan Guo, and A. S. Bhalla, Dielectric properties of Ba(Ti,Zr)O₃ solid solutions, Materials Letters, 61, 327-329 (2007).

17. Chen Ang（陈昂）and ZHI Yu （智宇）, Effect of annealing on dielectric properties and electrical transportation of doped SrTiO₃, Applied Physics Letters, 88, 162902 (2006).

18. Chen Ang（陈昂）and ZHI Yu （智宇）, High purely electrostrictive strain in lead-free dielectrics, Advanced Materials, 18, 103-106 (2006).

19.Chen Ang（陈昂）and ZHI Yu （智宇）, “Dielectric relaxor” behavior of electroactive fluorinated polymers, Applied Physics Letters, 86, 26-2903 (2005).

20. ZHI Jing, ZHI Yu （智宇）, and Chen Ang, Crossover of Ba(Ti,Y)O₃ solid solutions to Ba₃Ti₂O_8.5 - BaTiO₃ composites and their dielectric properties, Journal of  American Ceramic Society, 88, 2775-79 (2005).

21.  Chen Ang（陈昂）and ZHI Yu （智宇）, “Multi-polarization-mechanism” in polar dielectrics, the proceeding of “12th US-Japan Seminar on Dielectric and Piezoelectric Ceramics”, pp75-78, 2005.

22. Chen Ang（陈昂）and ZHI Yu （智宇）, Ferroelectric, Electroactive and dielectric relaxation behavior of fluoro-polymers, Advanced Materials, 16[12], 795-8 (2004).

23.  Chen Ang（陈昂）and ZHI Yu （智宇）, DC electric-field dependence of the dielectric constant in polar dielectrics: “multi-polarization-mechanism” model, Physical Review B69, 174109 (2004) (8 pages).

24.  Chen Ang（陈昂）and ZHI Yu （智宇）, Phase transition temperature and character of Cd₂Nb₂O₇, Physics Review B70, 134103 (2004) (4 pages).

25.     Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric behavior of PbZr_0.52Ti_0.48O₃ thin films: intrinsic and extrinsic dielectric response, Applied Physics Letters, 85[17], 3821-23 (2004).

26.     ZHI Yu （智宇）, and Chen Ang, Dielectric behavior of electroactive fluorinate-based polymers under dc bias, Applied Physics Letters, 85[17], 3827-29 (2004).

27.    Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric behavior of electroactive fluorinate-based terpolymers, Applied Physics Letters, 84[12], 2145-7 (2004).

28.     Chen Ang（陈昂）and ZHI Yu （智宇）, Physical nature of the high strain in electroactive polymers: ferroelectric relaxor or dielectric relaxor? Fundamental Physics of Ferroelectric 2004, Ed. P. Gehring, and R. E. Cohen, pp44-45 (The Navy workshop on Fundamental Physics of Ferroelectrics, Colonial Willaimsburg, February, 2004).        

29.    Chen Ang, ZHI Yu （智宇）, and L. E. Cross, Electrostrictive properties of stretched poly(vinylidene fluoride – trifluoroethylene) copolymers at cryogenic temperatures, Applied Physics Letters, 83[9], 1821-3 (2003).

30.  Chen Ang, ZHI Yu （智宇）, Ruyan Guo, and A. S. Bhalla, Calculation of dielectric constant and loss of two-phase composites, Journal of Applied Physics, 93[6], 3475-80 (2003).

31.     Chen Ang, ZHI Yu （智宇）, H. J. Youn, C. A. Randall, A. S. Bhalla, L. E. Cross, J. Nino, and M. Lanagan, Dielectric properties of Bi₂O₃-ZnO-Ta₂O₅ pyrochlore and zirconolite structure ceramics, Applied Physics Letters, 82[21], 3734-6 (2003).

32. ZHI Jing, ZHI Yu （智宇）and Chen Ang, Crystalline structure and dielectric behavior of Ba(Ti,Ce)O₃, Journal of  Materials Science, 38[5], 1057-61 (2003).

33.   ZHI Yu （智宇）and Chen Ang, Crystalline structure and dielectric properties of (Sr_1-1.5xBi_x)TiO₃ ceramics, Journal of  Materials Science, 38 [1], 113-118 (2003).

34.   Chen Ang, ZHI Yu （智宇）, H. J. Youn, C. A. Randall, A. S. Bhalla, L. E. Cross, J. Nino, and M. Lanagan, Low temperature dielectric relaxation in pyrochlore (Bi_3/4Zn_1/4)₂(Zn_1/4Ta_3/4)₂O₇ compounds, Applied Physics Letters, 80[25], 4807-09 (2002).

35.     Chen Ang, ZHI Yu （智宇）, ZHI Jing, Ruyan Guo, A.S. Bhalla, and L. E. Cross, Piezoelectric and Electrostrictive strain behavior of Ce-doped BaTiO₃ ceramics, Applied Physics Letters, 80[18], 3424-26 (2002).

36. ZHI Jing, ZHI Yu （智宇）and Chen Ang, Crystalline structure and dielectric behavior of (Ce,Ba)TiO₃ ceramics, Journal of Materials Research, 17 [11], 2787-2793 (2002).

37.   Chen Ang, ZHI Jing, and ZHI Yu （智宇）, Ferroelectric relaxor Ba(Ti,Ce)O₃, Journal of Physics: Condensed Matter, 14, 8901–12 (2002).

38.   Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric relaxor and ferroelectric relaxor: doped paraelectric SrTiO₃, Journal of Applied Physics, 91[3], 1487-94 (2002).

39.     Chen Ang, ZHI Yu （智宇）, L. E. Cross, Ruyan Guo, and A. S. Bhalla, Dielectric relaxation and conduction in SrTiO₃ thin films under dc bias, Applied Physics Letters, 79[6], 818-20 (2001).

40.     Chen Ang, L.E. Cross, ZHI Yu （智宇）, Ruyan Guo, and A.S. Bhalla, Dielectric loss and defect mode of SrTiO₃ thin film under direct-current bias, Applied Physics Letters, 78[18], 2754-56 (2001).

41.     Chen Ang, A.S. Bhalla, Ruyan Guo, and L.E. Cross, Effect of dc bias on dielectric properties of Cd₂Nb₂O₇ ceramics, Journal of Applied Physics, 90[5], 2465-68 (2001).

42.     ZHI Yu （智宇）, Chen Ang, Ruyan Guo, Amar S. Bhalla, and L. E. Cross, Oxygen vacancy related dielectric relaxation in (Sr_1-1.5xBi_x)TiO₃, Ferroelectrics, 262, 219-225 (2001).

43.     ZHI Yu （智宇）and Chen Ang, Compatibility of YBa₂Cu₃O_6+d superconductor with YBa₃Ti₂O_8.5 compound, Journal of  Materials Science Letter, 20, 1897-99(2001).

44.     Chen Ang, ZHI Yu （智宇）, Ruyan Guo, and A.S. Bhalla, Effect of dc field on dielectric loss of SrTiO₃ single crystals and thin films, Dielectric Materials and Devices, Ed. K.M. Nair, Amar S. Bhalla, Tapan K. Gupta, et al., pp339-348, 2001.  

45.     Chen Ang, ZHI Yu （智宇）, and L. E. Cross, Oxygen-vacancies-related low-frequency dielectric relaxation and electrical conduction in Bi:SrTiO₃, Physical Review B62,  228-236(2000).

46.     Chen Ang（陈昂）and ZHI Yu （智宇）,Phonon-coupled impurity dielectric modes in Bi:SrTiO₃, Physical Review B61, 11363-66(2000).

47.     Chen Ang, ZHI Yu （智宇）, ZHI Jing, P. Lunkenheimer and A. Loidl, Dielectric spectra and electrical conduction in Fe doped SrTiO₃, Physical Review B61, 3922-26(2000).

48.     Chen Ang, ZHI Yu （智宇）, and ZHI Jing, Impurity induced ferroelectric relaxor behavior in quantum paraelectric SrTiO₃ and ferroelectric BaTiO₃, Physical Review B61, 957-961(2000).

49.     Chen Ang, ZHI Yu （智宇）, J. Scott, A. Loidl, Ruyan Guo, Amar S. Bhalla, and L. E. Cross, Dielectric Polarization Processes in Bi:SrTiO₃, J. Phys. Chem. Solids, 61:(2), 191-196(2000).

50.     Zhi  Yu（智宇）,  Chen Ang,  A.S. Bhalla, and  L. E. Cross, Dielectric anomalies in La and Bi doped SrTiO₃, Part I:  Oxygen-vacancy-related dielectric peaks, Ceramics Transactions: Electronic Ceamic Materials and Devices, Edited by K.M. Nair and A.S. Bhalla, Vol.106, pp123-131, 2000.  

51.     Chen Ang,  Zhi  Yu （智宇）, A.S. Bhalla, and  L. E. Cross, Dielectric anomalies in La and Bi doped SrTiO₃, Part II: The low temperature dielectric behavior, Ceramics Transactions: Electronic Ceamic Materials and Devices, Edited by K.M. Nair and A.S. Bhalla, Vol.106, pp133-137, 2000.  

52.     Jing Zhi, Chen Ang, P.M. Vilarinho, ZHI Yu （智宇）, J.L. Baptista, Effect of Ce doping at Ba sites on the phase structure and the ferroelectric phase transition of BaTiO₃, Ceramics Transactions: Electronic Ceamic Materials and Devices, Edited by K.M. Nair and A.S. Bhalla, Vol.106, pp115-121, 2000.  

53.     Chen Ang, J. F. Scott, ZHI Yu （智宇）, H. Ledbetter, and J.L. Baptista, Dielectric and Ultrasonic Anomalies at 22K, 37K and 65K in SrTiO₃, Physical Review B59, 6661-64(1999).

54.     Chen Ang, ZHI Yu （智宇）, J. Hemberger, P. Lunkhemer, and A. Loidl, Dielectric anomalies in bismuth doped SrTiO₃; Defect modes at low impurity concentrations, Physical Review B59, 6665-69(1999).

55.     Chen Ang, ZHI Yu （智宇）, P. Lunkhemer, J. Hemberger, and A. Loidl, Dielectric relaxation modes in bismuth doped SrTiO₃; The Relaxor Behavior, Physical Review B59, 6670-74(1999).

56.     ZHI Jing, Chen Ang, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, Solubility of Y in BaTiO₃ ceramics, Journal of  American Ceramic Society (Rapid Communication), 82[5], 1345-48(1999).

57.     ZHI Yu （智宇）, Chen Ang, and L. E. Cross, Oxygen-vacancy-related Dielectric anomalies in La:SrTiO₃, Applied Physics Letters, 74[20], 3044-46(1999).

58.     Chen Ang, ZHI Jing, and ZHI Yu （智宇）, Insulator - Metallic transition in Cu-doped BaTiO₃ Multiphase Ceramics, Journal of Physics: Condensed Matter, 11, 9703-08 (1999).

59.     Chen Ang, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, Bi:SrTiO₃: A quantum ferroelectric and a relaxor, Physical Review B57, 7403-06(1998).

60.     Chen Ang, J. R. Jurado, ZHI Yu （智宇）, M.T. Colomer, J.R. Frade, and J.L. Baptista, A variable-range hopping conduction and dielectric relaxation in disordered Sr_0.97(Ti_1-xFe_x)O_3-d, Physical Review B57, 11858-61(1998).

61.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho, P. Mantas and J. L. Baptista, Dielectric properties of  (Sr,Bi)TiO₃ ceramics at high temperature (500-800K), Journal of Applied Physics, 83, 4874-77 (1998).

62.     ZHI Jing, Chen Ang, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, Dielectric properties of Ba(Ti,Y)O₃ ceramics, Journal of Applied Physics, 84, 983-986 (1998).

63.     Chen Ang, ZHI Yu （智宇）, Zhi jing, P. M. Vilarinho and J. L. Baptista, Dielectric Properties of (Sr_0.76Bi_0.16)TiO₃ - PbTiO₃ Ceramics, Bol. Soc. Esp. Ceram. Vidrio, 37, 235-237(1998)

64.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho, P. Mantas and J. L. Baptista, Dielectric relaxation behaviour of Bi:SrTiO₃: I, The low temperature permittivity peak, Journal of  the European Ceramic Society, 18, 1613-19 (1998).

65.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho, P. Mantas and J. L. Baptista, Dielectric relaxation behaviour of  Bi:SrTiO3: II, Influence of heat treatment on dielectric properties, ibid, 18, 1621-28 (1998).

66.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho, P. Mantas and J. L. Baptista, Dielectric relaxation behaviour of  Bi:SrTiO3: III, Dielectric properties in the temperature range of  300 - 600K, ibid, 18, 1629-35 (1998)

67.     Chen Ang, ZHI Yu （智宇）, ZHI Jing, P. M. Vilarinho, and J. L. Baptista, Synthesis and characterization of Ba(Ti,Ce)O₃ ceramics, Journal of  the European Ceramic Society, 17, 1217-21(1997).

68.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho and J. L. Baptista, Dielectric properties of Ba(Ti,Ce)O₃ solid solutions in the temperature range of 85K-700K,  Journal of  Physics: Condensed Matter, 9, 3081-88(1997).

69.     Bao Yahua, Chen Ang, and ZHI Yu （智宇）, Piezoelectric properties of Pb(Li_1/4Nb_3/4)_0.06(Mg_1/3Nb_2/3)_0.06(Zr_0.88-xTi_x)O₃ ceramics and its application for transformer, Journal of Zhejiang University, 31[2], 269-276 (1997). (in Chinese)

70.     Chen Ang, ZHI  Jing, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, The formation and composition of compounds in Ba-rich corner of BaO-M₂O₃-TiO₂ ternary system (M=Y and Nd), Key Engineering Materials, 132-136, 1207-10(1998).

71.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho and J. L. Baptista, Dielectric anomaly of (Sr_1-xBi_2x/3)TiO₃ ceramic in the temperature range of 300-600K, Key Engineering Materials, 132-136, 1052-55(1998).  

72.     Jing Zhi, Chen Ang, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, Dielectric behaviour of Ba(Ti,Ce)O₃ ceramics, Key Engineering Materials, 132-136, 1187-90(1998).  

73.     Chen Ang, ZHI Yu （智宇）, V. M. Ferreira, P. M. Vilarinho, and J. L. Baptista, Occurrence of single phase dielectric compound in the BaO-rich corner of BaO – Re₂O₃ – TiO₂ ternary system (Re=Y, Nd, and Sm), Journal of Materials Science Letter, 15, 1313-14(1996).

74.     Chen Ang, ZHI Yu （智宇）, P. M. Vilarinho, V. M. Ferreira, and J. L. Baptista, Synthesis and characterization of dielectric compounds in the BaO-rich corner of  BaO – Y₂O₃ – TiO₂  ternary system,  Journal of  the European Ceramic Society, 16, 1051-56(1996).

75.     Jiaping Han, X. L. Zhang, X. Z. Wang, ZHI Yu （智宇）,and Chen Ang, A study on the formation of Ba₂Ti₉O₂₀ phase in BaO-TiO₂ system, Journal of the Chinese Ceramic Society, 24[2], 173-178(1996). (in Chinese)

76.     J. L. Baptista, Chen Ang, ZHI Yu （智宇）, V. M. Ferreira, P. M. Vilarinho, and Jing Zhi, New dielectric compounds in the BaO -rich corner of BaO-Re₂O₃-TiO₂ ternary system (Re=Nd, Sm, Y, La, and Pr), Electroceramic V, Book 2, pp5-8, 1996. (The proceedings of The European Fifth International Conferences on Electroceramics and applications, September 2 – 4, 1996, Aveiro, Portugal.)

77.     Chen Ang, Jing Zhi, ZHI Yu （智宇）, P. M. Vilarinho and J. L. Baptista, Dielectric properties of BaTiO₃/YBaTiO composite ceramics, Electroceramic V, Book 2, pp25-28, 1996. (Ibid)

78.     Chen Ang, Jing Zhi, ZHI Yu （智宇）, Ya-hua, Jia-ping Han,  P. M. Vilarinho and J. L. Baptista, Dielectric properties of  the  YBaCuO / YBaTiO composite ceramics,  Electroceramic V, Book 2 , pp281-284, 1996. (Ibid)

79.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho and J. L. Baptista, Dielectric dispersion behavior of Ba(Ti,Ce)O₃ solid solutions,  Electroceramic V, Book 2 , pp9-12, 1996. (Ibid)

80.     ZHI Yu （智宇）, Chen Ang, P. M. Vilarinho, P. Mantas and J. L. Baptista, Dielectric relaxation behaviour of  (Sr,Bi)TiO₃ ceramics,  Electroceramic V, Book 1 , pp491-495, 1996. (Ibid)

81.     Jing Zhi,  Chen Ang, ZHI Yu （智宇）, Ya-hua Bao, Jia-ping Han,  P. M. Vilarinho and J. L. Baptista, Low temperature resistivity behaviour in Ba(Ti,Cu)O₃ composite ceramics, Electroceramic V, Book 2, pp33-36, 1996. (Ibid)

82.     Jing Zhi, Chen Ang, ZHI Yu （智宇）, Ya-hua Bao, Jia-ping Han,  P. M. Vilarinho and J. L. Baptista, Effect of lead doping on the microstructure and dielectric properties of  YBa₃Ti₂O_8.5 ceramics, Electroceramic V, Book 2, pp29-32, 1996. (Ibid)

83.     Bao Yahua, Chen Ang, ZHI Yu （智宇）, and Jiaping Han, Piezoelectric ceramics of Pb(Li_1/4Nb_3/4)_0.06(Mg_1/3Nb_2/3)_0.06(Zr_0.88-xTi_x)O₃ system for transformer use, Electroceramic V, Book 2 , pp237-241, 1996. (Ibid)

84.     Jiaping Han, Chen Ang, ZHI Yu （智宇）, and Bao Yahua, Factors affecting the formation of Ba₂Ti₉O₂₀ phase, Electroceramic V, Book 2 , pp475-478, 1996. (Ibid)

85.     ZHI Yu （智宇）, Chen Ang, and Han Japin, Influence of MgO on dielectric behavior of Sr(Bi)TiO₃ ceramics, Journal of Zhejiang University, 29[2], 214-218(1995). (in Chinese)

86.     Chen Ang, Dai Xi, ZHI Yu （智宇）, and Yahua Bao, A special percolation problem in ceramic composite, Journal of the Chinese Ceramic Society, 23[6], 685-688(1995).  (in Chinese)

87.     Ferreira, Chen Ang, ZHI Yu （智宇）, Han Jiaping, and P. M. Vilarinho, Study of (Ni_0.3Zn_0.7)Fe_2.1O₄–BaTiO₃ ceramic composites, in Proceedings of Materiasl´95, 17 September, 1995, Aveiro, Portugal.

88.     Chen Ang, ZHI Yu （智宇）, BAO Yahua, DAI Xi, and JIANG Qin, A study of the BaTiO₃-YBa₂Cu₃O_y ceramic composite system, Journal of Physics: Condensed Matter, 6, 3553-58(1994).

89.     Chen Ang, ZHI Yu （智宇）and BAO Yahua, A study of BaTiO₃-BaPbO₃ ceramic composites, Journal of Physics: Condensed Matter, 6, 7921-25(1994).

90.     ZHI Yu （智宇）and Chen Ang, A Positron Annihilation Study of SrTiO₃ - based Ceramics, Journal of Physics: Condensed Matter, 5, 1877-82(1993).

91.     ZHI Yu （智宇）, Chen Ang, X. L. Zhang, X. Z. Wang, and B. R. Li, Dielectric properties and defect mechanism of lanthanum doped strontium-bismuth titanate ceramics, Journal of the Chinese Ceramic Society, 21[2], 137-141(1993). (in Chinese)

92.     ZHI Yu （智宇）, Chen Ang, Zhang Xuli, Zhou Guoliang, and Wang Xiaozheng, Manganese influence on the semiconductive (Ba,Pb)TiO₃ ceramics, Journal of Zhejiang University, 27[1], 116-121(1993). (in Chinese)

93.     Chen Ang, ZHI Yu （智宇）, Li Biaorong, Wang Shaojie, and Chen Yilong, Doping Effect of Sn on Superconductivity of YBa₂Cu₃O_y, Journal of Physics: Condensed Matter, 4, 4981-87(1992).

94.     Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric Properties and Complex Defect Structure in (Sr_1-xBi_x)TiO₃ Ceramics, Journal of Applied Physics, 71, 4451-54(1992) .

95.     Chen Ang（陈昂）and ZHI Yu （智宇）, Dielectric Properties and Defect  Structure in Lanthanum Doped SrTiO₃ Ceramics, Journal of Applied Physics, 71, 6025-28(1992).

96.     Chen Ang, ZHI Yu （智宇）, Li Biaorong, and Wang Shaojie, Positron Annihilation Study of YBa₂Cu₃O_y Superconductors Doped with SnO₂, Physical Letter, A165, 171-174(1992).

97.     Chen Ang, ZHI Yu （智宇）, and Lu Zhuo, Substitution effect of Sn and/or Ca elements in YBa₂Cu₃O_7-x superconducting ceramics,  Chinese Journal of Low Temperature Physics, 14[4], 289-292(1992). (in Chinese)

98.     Chen Ang, ZHI Yu （智宇）, Li Biaorong, and Zhang Xuli, Study of   YBCO superconducting ceramics with dopant, Chinese Journal of Low Temperature Physics, 14[6], 450-454(1992). (in Chinese)

99.     Chen Ang, ZHI Yu （智宇）, Li Biaorong, Zhang Xuli, Li Xiaohua, and Wang Shaojie, Positron annihilation study of YBa₂Cu₃O_y superconducting ceramics, Journal of Zhejiang University, 26[1], 120-124(1992). (in Chinese)

100.ZHI Yu （智宇）, and Chen Ang, Influence of sintering process on PTC behavior of BaTiO₃-based thermistor, Journal of Zhejiang University, 26[6], 619-620(1992).  (in Chinese)

101.Chen Ang, ZHI Yu （智宇）, Zhang Xuli, Wang Xiaozhen, Positron annihilation study of complex-defect in Sr-Bi-Ti-O system dielectric ceramics, Journal of Inorganic Materials, 7[4], 423-428(1992). (in Chinese)

102.Chen Ang, and ZHI Yu （智宇）, A Study of Trivalent-element Doped SrTiO₃ Ceramics, in the Proceedings of International Conference  on  Electronic Component and Materials, pp538-542, 1992, Hangzhou, P.R. China.

103.Chen Ang, and ZHI Yu （智宇）, Superconductivity of YBaCuO Ceramics with Additive SnO₂, 1st International Conference on Adanced Materials and Processing, pp404-405, 1992, Hangzhou, P.R. China.

104.Chen Ang, and ZHI Yu （智宇）, Doping Effect of Ce on the Superconductivity of YBaCuO Ceramics, 1st International Conference on Advanced Materials and Processing, pp406-407, 1992, Hangzhou, P.R. China.

105.Chen Ang, and ZHI Yu （智宇）, Substitution induced metal-insulator and structural transition in YBa₂(Cu_1-x M_x)₃O_y ceramics (M=Trivalent Cation ), Chinese Physics Letter, 8[10], (supplement), 132-134(1991).

106.Chen Ang, and ZHI Yu （智宇）, Metal-insulator transition in YBCO superconductor, Chinese Physics Letter, 8[10], (supplement), 129-131(1991).

107.ZHI Yu （智宇）, Chen Ang, X. L. Zhang, X. Z. Wang, and B. R. Li, A Study of SrTiO₃ –Bi₂O₃ TiO₂ Solid Solution Doped with MgO Additive, Advanced Structural Materials, Ed. Yafang Han, Elsevier Publisher, North Holland, pp535-538, 1991.

 

US patent：

Chen Ang（陈昂）and ZHI Yu （智宇）, “Lead-free ferroelectric/electrostrictive ceramic materials”, Patent number: 8043987.