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Memorias de investigación
Artículos en revistas:
Environmental degradation of the mechanical properties of single-crystal erbia-doped zircona fibers
Año:2007
Áreas de investigación
  • Cerámicos
Datos
Descripción
The flexure strength of tetragonal ZrO2 (Er2O3) single-crystal monofilaments manufactured by the laser-heated floating zone method was measured as a function of the environment (air vs. water) and temperature (from 25 to 800 degrees C) at loading rates spanning three orders of magnitude to ascertain their susceptibility to the environmental conditions. These mechanical tests were completed with parallel tests on fully-annealed monofilarnents (to relieve the thermal residual stresses induced during growth) and by detailed analysis of the fracture surfaces using scanning electron microscopy and micro-Raman spectroscopy. While environmental susceptibility of ZrO2 (Y2O3) in previous investigations was always associated with the destabilization of the tetragonal phase, monoclinic phase was not detected on the fracture surfaces of the ZrO2 (Er2O3) monofilaments and it was concluded that slow crack growth in this material at high temperature or immersed in water was due to stress-corrosion cracking.
Internacional
Si
JCR del ISI
No
Título de la revista
Boletín de la Sociedad Española de Cerámica y Vidreo
ISSN
0366-3175
Factor de impacto JCR
0
Información de impacto
Volumen
46
DOI
Número de revista
3
Desde la página
131
Hasta la página
137
Mes
MAYO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Victor M. Orera
  • Autor: Jose Ygnacio Pastor Caño (UPM)
  • Autor: Alvaro Ridruejo Rodriguez (UPM)
  • Autor: A. Sayir
  • Autor: Fco. Javier Llorca Martinez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Materiales Estructurales avanzados y nanomateriales
  • Departamento: Ciencia de los Materiales
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