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Descripción
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| 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. | |
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Internacional
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Si |
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JCR del ISI
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No |
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Título de la revista
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Boletín de la Sociedad Española de Cerámica y Vidreo |
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ISSN
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0366-3175 |
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Factor de impacto JCR
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0 |
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Información de impacto
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Volumen
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46 |
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DOI
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Número de revista
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3 |
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Desde la página
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131 |
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Hasta la página
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137 |
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Mes
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MAYO |
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Ranking
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