Artigo
Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
Fecha
2009-01-01Registro en:
Química Nova. Sociedade Brasileira de Química, v. 32, n. 7, p. 1704-1709, 2009.
0100-4042
10.1590/S0100-40422009000700004
S0100-40422009000700004
WOS:000271424900004
S0100-40422009000700004.pdf
4921948374820065
0000-0002-7772-2701
Autor
Universidade Estadual Paulista (Unesp)
Universidad de Oriente Facultad de Ingeniería Química
Resumen
KSr2Nb5O15 is a ferroelectric material. The sintering process of the KSr2Nb5O15 ceramic doped with different amounts of CuO was investigated in this research. It was found that CuO is effective as promoter of the densification process of the KSN ceramic. The developed microstructures were different due to the amount of CuO and secondary phases were observed in the microstructures. However, the results of X - ray diffraction showed that only the tetragonal tungsten bronze (TTB) structure was identified in all the investigated ceramic systems. The thermal behavior of CuO and also of the CuO - KSN phase mixture was investigated by thermal analysis.