Microwave synthesis and sintering characteristics of CaCu3Ti4O12
Source abstract
Abstract
CaCu3Ti4O12 (CCTO) was synthesized and sintered by microwave processing at 2⋅45 GHz, 1⋅1 kW. The optimum calcination temperature using microwave heating was determined to be 950°C for 20 min to obtain cubic CCTO powders. The microwave processed powders were sintered to 94% density at 1000°C/60 min. The microstructural studies carried out on these ceramics revealed the grain size to be in the range 1-7 μm. The dielec- tric constants for the microwave sintered (1000°C/60 min) ceramics were found to vary from 11000-7700 in the 100 Hz-100 kHz frequency range. Interestingly the dielectric loss had lower values than those sintered by conventional sintering routes and decreases with increase in frequency.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dielectric properties of ceramics · Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Adams T B, Sinclair D C and West A R 2002 Adv. Mater. 14 1810.1002/1521-4095(20020916)14:18<1321::AID-ADMA1321>3.0.CO;2-P ↗
2. Baghurst D R and Mingos M P 1988 J. Chem. Soc. Chem. Commun. 82910.1039/c39880000829 ↗
3. Baghurst D R, Chippindale A M and Mingos D M P 1988 Nature 332 31110.1038/332311a0 ↗
4. Bender B A and Pan M-J 2005 Mater. Sci. Engg. B117 33910.1016/j.mseb.2004.11.019 ↗
5. Chung S Y 2005 Appl. Phys. Lett. 87 05290110.1063/1.2001758 ↗
6. Fang T T and Liu C P 2005 Chem. Mater. 17 516710.1021/cm051180k ↗
7. Homes C C, Vogt T, Shapiro S M, Wakimoto S and Ramirez A P 2001 Science 293 67310.1126/science.1061655 ↗
8. Jha P, Arora P and Ganguli A K 2003 Mater. Lett. 57 244310.1016/S0167-577X(02)01250-8 ↗
9. Katz J D 1992 Ann. Rev. Mater. Sci. 22 15310.1146/annurev.ms.22.080192.001101 ↗
10. Krage M K 1981 Am. Ceram. Soc. Bull. 60 1232
11. Landry C C, Lockwood J and Barron A R 1995 Chem. Mater. 7 69910.1021/cm00052a015 ↗
12. Leizhang 2005 Appl. Phys. Lett. 87 02290710.1063/1.1993748 ↗
13. Li J, Cho K, Wu N and Ignatiev A 2004 IEEE Trans. Dielectr. Electr. Insul. 11 534
14. Liu J, Duan C, Mei W N, Smith R W and Hardy J R 2005 J. Appl. Phys. 98 09370310.1063/1.2125117 ↗
15. Lunkenheimer P, Bobnar V, Pronin A V, Ritus A I, Volkov A A and Loidl A 2002 Phys. Rev. B66 05210510.1103/PhysRevB.66.052105 ↗
16. Lunkenheimer P, Fichtl R, Ebbinbhaus S G and Loidl A 2004 Phys. Rev. B70 17210210.1103/PhysRevB.70.172102 ↗
17. Ni L, Chen X M, Liu X Q and Hou R Z 2006 Solid State Commun. 139 4510.1016/j.ssc.2006.05.015 ↗
18. Pires M A et al 2006 Phys. Rev. B73 22440410.1103/PhysRevB.73.239902 ↗
19. Rao K J, Vaidhyanathan B, Ganguli M and Ramakrishnan P A 1999 Chem. Mater. 11 88210.1021/cm9803859 ↗
20. Ren W, Yu Z, Krstic V D and Mukherjee B K 2004 IEEE int. ultrasonic, ferroelectrics and frequency control, joint 50th annual conference, p. 149
21. Satapathy L N, Ramesh P D, Agrawal D K and Roy R 2005 Mater. Res. Bull. 40 187110.1016/j.materresbull.2005.04.034 ↗
22. Seymen A, Tan X, Maria J-P and Cann D 2005 J. Elec. Ceram. 15 203
23. Sinclair D C, Adams T B, Morrison F D and West A R 2002 Appl. Phys. Lett. 80 215310.1063/1.1463211 ↗
24. Sriprakash B and Varma K B R 2006 Physica B382 31210.1016/j.physb.2006.03.005 ↗
25. Subramanian M A, Duran D, Li N, Reisner B A and Sleight A W 2000 Solid State Chem. 151 32310.1006/jssc.2000.8703 ↗
26. Sutton W H 1989 Ceram. Bull. 68 376
27. Thakur O P, Chandra Prakash and Agrawal D K 2002 Mater. Lett. 56 97010.1016/S0167-577X(02)00648-1 ↗
28. Vaidhyanathan B, Ganguli M and Rao K J 1995 Mater. Res. Bull. 30 117310.1016/0025-5408(95)00099-2 ↗
29. Vaidhyanathan B, Raizada P and Rao K J 1997 J. Mater. Sci. Lett. 16 202210.1023/A:1018596330482 ↗
30. Vaidhyanathan B, Agrawal D K, Shrout T R and Fang Yi 2002 Mater. Lett. 42 20710.1016/S0167-577X(99)00185-8 ↗
31. Zhipeng X, Yang J, Huang X and Huang J 1999 J. Eur. Ceram. Soc. 19 38110.1016/S0955-2219(98)00203-9 ↗