Properties and microstructural aspects of TiO 2 ‐doped sintered Alumina‐Zirconia composite ceramics | Zendy

Khaskhoussi Amani | Zendy; Bouhamed Hazem | Zendy; Calabrese Luigi | Zendy; Proverbio Edoardo | Zendy; Bouaziz Jamel | Zendy

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Properties and microstructural aspects of TiO 2 ‐doped sintered Alumina‐Zirconia composite ceramics

Author(s) -

Khaskhoussi Amani,

Bouhamed Hazem,

Calabrese Luigi,

Proverbio Edoardo,

Bouaziz Jamel

Publication year - 2018

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/ijac.13021

Subject(s) - materials science , microstructure , sintering , ceramic , cubic zirconia , composite number , ternary operation , doping , composite material , grain size , grain growth , phase (matter) , pressureless sintering , chemistry , optoelectronics , organic chemistry , computer science , programming language

The effect of titania content on the densification, the phase transformation, the microstructures, and mechanical properties of 50 wt% Al 2 O 3 ‐50 wt% ZrO 2 (12 mol% CeO 2 ) was evaluated. Ceramic composites with different TiO 2 content (0.27, 5, 10 wt%) were prepared by pressureless sintering at low temperature (1400°C) for 2 hours in air. Dense ceramic was obtained by adding 5 wt% of TiO 2 loading to improved mechanical properties. The microstructure analysis provided lots of information about solid‐state reactivity in alumina‐zirconia‐titania ternary system. The content of TiO 2 strongly affected the phases evolution and the grain growth during sintering. Furthermore, a significant effect on mechanical properties and fracture behavior was also observed.

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