Low-Temperature Aging Degradation-Free 3Y-TZP/Nb Composites
In the current work, 3Y-YZP strengthened with lamellar flaky shape Nb metal particles was obtained by a hot press at 1400°C for 1 h. This composite is unaffected by the low-temperature degradation, humidity-enhanced phase transformation typical of yttria-stabilized zirconia polycrystalline ceramic. The destructive phase transformation is dramatically reduced by the presence of a solid solution of Nb2O5 into the 3Y-TZP matrix. This new 3Y-TZP/Nb composite exhibits an optimal combination of “aging free” and crack growth resistance never attained before.
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Document Type: Research Article
Affiliations: Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain
Publication date: 2010-07-01