Stillwellite-like LaBGeO5 exhibits promising pyroelec. properties that were obsd. for both single crystal and glass-ceramic textures. To increase pyroelec. coeff. in the room temp. range, it is worth trying to create stillwellite-like solid solns. diminishing ferroelec. phase transition point, Tc. However such an attempt has been carried out only for LaBSiO5 stillwellite doped with Pb(Ca)BPO5. Taking into account the higher pyroelec. activity of LaBGeO5 as compared to LaBSiO5, in the present work existence of solid solns. in the LaBGeO5-LaBSiO5 and LaBGeO5-Pb(Ca)BPO5 systems was explored and Tc compn. dependency was detd. It can be supposed that compns. in the range LaBGe0.2-0.4Si0.8-0.6O5 are good candidates to develop new high-effective pyroelecs. in form of ceramics, composites or textures
Ferroelectric composites and ceramics based on stillwellite-like solid solutions / V. N., Sigaev; P. D., Sarkisov; Stefanovich, S. Y. U.; A. V., Mosunov; Pernice, Pasquale; Aronne, Antonio; T. V., Kim; V. I., Fertikov; B. G., Parfenov; A. G., Segalla. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - STAMPA. - 24:(2004), pp. 1569-1572.
Ferroelectric composites and ceramics based on stillwellite-like solid solutions
PERNICE, PASQUALE;ARONNE, ANTONIO;
2004
Abstract
Stillwellite-like LaBGeO5 exhibits promising pyroelec. properties that were obsd. for both single crystal and glass-ceramic textures. To increase pyroelec. coeff. in the room temp. range, it is worth trying to create stillwellite-like solid solns. diminishing ferroelec. phase transition point, Tc. However such an attempt has been carried out only for LaBSiO5 stillwellite doped with Pb(Ca)BPO5. Taking into account the higher pyroelec. activity of LaBGeO5 as compared to LaBSiO5, in the present work existence of solid solns. in the LaBGeO5-LaBSiO5 and LaBGeO5-Pb(Ca)BPO5 systems was explored and Tc compn. dependency was detd. It can be supposed that compns. in the range LaBGe0.2-0.4Si0.8-0.6O5 are good candidates to develop new high-effective pyroelecs. in form of ceramics, composites or texturesI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
