Preparation and thermophysical properties of nano-sized Ln2Zr2O7 (Ln = La, Nd, Sm, and Gd) ceramics with pyrochlore structure
Source abstract
Abstract
Rare earth zirconates (Ln2Zr2O7, Ln = La, Nd, Sm, and Gd) with pyrochlore structure were prepared by hydrothermal method with polyethylene glycol as surfactant. X-ray diffraction, thermogravimetric analysis/differential scanning calorimetry, Fourier transform infrared spectroscopy, Raman spectroscopy, and field emission scanning electron microscopy were utilized to characterize the phase structure, thermal decomposition, and morphology of the products. Qualitative analysis indicates that the as-prepared zirconates are pyrochlore-type structures. The specific surface area, lattice parameter, and average crystallite size of the as-prepared products are closely related to the ionic radius. The activation energy of crystal growth shows an increasing trend with the decrease in ionic radii. The sintering behavior of compacted body was also investigated, revealing that the sintering-resistance properties of Ln2Zr2O7 are descending as the order of La2Zr2O7, Nd2Zr2O7, Sm2Zr2O7, and Gd2Zr2O7.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear materials and radiation effects · Nuclear Materials and Properties · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Yao H, Ouyang L, Ching WY (2007) J Am Ceram Soc 90:319410.1111/j.1551-2916.2007.01931.x ↗
2. Wan CL, Qu ZX, Du AB, Pan W (2009) Acta Mater 57:478210.1016/j.actamat.2009.06.040 ↗
3. Saruhan B, Francois P, Fritscher K, Schulz U (2004) Surf Coat Technol 182:17510.1016/j.surfcoat.2003.08.068 ↗
4. Xu ZH, He SM, He LM, Mu RD, Huang GH, Cao XQ (2011) J Alloys Compd 509:427310.1016/j.jallcom.2010.12.203 ↗
5. Eastman JA, Choi US, Li S, Soyez G, Thompson LJ, Dimelfi RJ (1999) Mater Sci Forum 629:312
6. Yang HS, Bai GR, Thompson LJ, Eastman JA (2002) Acta Mater 50:230910.1016/S1359-6454(02)00057-5 ↗
7. Vassen R, Cao X, Tietz F, Basu D, Sto¨ver D (2000) J Am Ceram Soc 83:202310.1111/j.1151-2916.2000.tb01506.x ↗
8. Sohn JM, Kim MR, Woo SI (2003) Catal Today 83:28910.1016/S0920-5861(03)00249-9 ↗
9. Feng J, Xiao B, Wan CL, Qu ZX, Huang ZC, Chen JC, Zhou R, Pan W (2011) Acta Mater 59:174210.1016/j.actamat.2010.11.041 ↗
10. Scherer GW (1997) J Sol Gel Sci Technol 8:353
11. Mahdiyar V, Cavus F (2007) J Am Ceram Soc 90:200810.1111/j.1551-2916.2007.01681.x ↗
12. Piticescu RR, Monty C, Taloi D, Motoc A, Axinte S (2001) J Eur Ceram Soc 21:205710.1016/S0955-2219(01)00171-6 ↗
13. Brunauer S, Emmett PH, Teller E (1938) J Am Chem Soc 60:30910.1021/ja01269a023 ↗
14. Zhang P (2008) J Phys Chem C 112:93210.1021/jp7102337 ↗
15. Hess NJ, Begg BD, Conradson SD, McCready DE, Gassman PL, Weber WJ (2002) J Phys Chem B 106:466310.1021/jp014285t ↗
16. Zhang FX, Manoun B, Saxena SK, Zha CS (2005) Appl Phys Lett 86:18190610.1063/1.1925307 ↗
17. Qu ZX, Wan CL, Pan W (2007) Chem Mater 19:491310.1021/cm071615z ↗
18. Shimamuri K, Arima T, Idemitsu K, Inagaki Y (2007) Int J Themophys 28:107410.1007/s10765-007-0232-9 ↗
19. Tong YP, Lu LD, Yang XJ, Wang X (2008) Solid State Science 10:137910.1016/j.solidstatesciences.2008.01.027 ↗
20. Minervini L, Grimes RW (2000) J Am Ceram Soc 83:187310.1111/j.1151-2916.2000.tb01484.x ↗
21. Gedanken A, Reisfeld R, Sominski E, Palchik O, Koltypin Y, Panczer G, Gaft M, Minti H (2000) J Phys Chem B 104:705710.1021/jp000652+ ↗
22. Ion ED, Maliˇc B, Arˇcon I, Padeˇznik Gomilˇsek J, Kodre A, Kosec M (2010) J Eur Ceram Soc 30:56910.1016/j.jeurceramsoc.2009.04.009 ↗
23. Su C, Suarez DL (1997) Clays Clay Miner 6:81410.1346/CCMN.1997.0450605 ↗
24. Kilner JA (1983) Solid State Ionics 8:20110.1016/0167-2738(83)90017-6 ↗
25. Shukla S, Seal S, Vij R, Bandyopadhyay S (2003) Nano Lett 3:39710.1021/nl0259380 ↗
26. Uno M, Kosuga A, Okui M, Horisaka K, Muta H, Kurosaki K, Yamanaka S (2006) J Alloys Compd 420:29110.1016/j.jallcom.2005.10.072 ↗
27. Raghavan S, Wang H, Porter WD, Dinwiddie RB, Mayo MJ (2001) Acta Mater 49:16910.1016/S1359-6454(00)00295-0 ↗
28. Subramanian MA, Aravamudan G, Subba Rao GV (1983) Prog Solid State Chem 15:5510.1016/0079-6786(83)90001-8 ↗
29. Haire RG, Raison PE, Assefa Z (2002) J Nucl Sci Technol Suppl 3:61610.1080/00223131.2002.10875543 ↗
30. Mazaheri M, Simchi A, Dourandish M, Golestani-Fard F (2009) Ceram Inter 35:54710.1016/j.ceramint.2008.01.008 ↗