𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mechanical properties of Al2O3particle-Y-TZP matrix composite and its toughening mechanism

✍ Scribed by J. L. Shi; B. S. Li; T. S. Yen

Publisher
Springer
Year
1993
Tongue
English
Weight
690 KB
Volume
28
Category
Article
ISSN
0022-2461

No coin nor oath required. For personal study only.

✦ Synopsis

Dense AI203 particle-Y-TZP matrix (AI203 < 40 vol %) composite was prepared by pressureless sintering at 1550~ Composites with 10-30 vol % AI=O 3 particles showed enhanced fracture toughness, bending strength and Vicker's hardness as compared to singlephase Y-TZP. The highest strength (1150 MPa) and highest toughness (12.4 MPa m 1/2) were obtained for the composite containing 10 vol% AI203. It was found that, in addition to the contribution by the crack-deflection effect, the enhanced phase transformation from tetragonal to monoclinic during fracture was the main toughening mechanism in operation in the composites.

πŸ“œ SIMILAR VOLUMES

Mechanical properties of (Y-TZP) β€” alumi
Mechanical properties of (Y-TZP) β€” alumina-silicon carbide nanocomposites and the phase stability of Y-TZP particles in it
✍ K. Niihara; N. Ünal; A. Nakahira πŸ“‚ Article πŸ“… 1994 πŸ› Springer 🌐 English βš– 900 KB

AI203-SiC-ZrO 2 composites were investigated to obtain a better understanding of the effect of SiC particles and the stress-induced transformation of Y-TZP on its mechanical properties. The AI203-SiC-ZrO 2 composites were fabricated by hot pressing using y-AI203, SiC and Zr02 mixtures. Fracture toug