Correlation between microstructure, phase transformation during fracture and the mechanical properties of Y-TZP ceramics

✍ Scribed by J.L. Shi; B.S. Li; Z.L. Lu; X.X. Huang

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 463 KB
• Volume: 16
• Category: Article
• ISSN: 0955-2219
• DOI: 10.1016/0955-2219(95)00192-1

✦ Synopsis

The mechanical properties of Y-TZP(yttria-stabilized tetragonal zirconia polycrystalline) materials with dlxerent microstructures have been studied and related to the phase transformation capability during fracture. It has been found that the microstructure of the materials afleets the phase composition and also the phase transformation volume (tetragonal to monoclinic) on the fracture surface during

fracture. Higher densities lead to higher phase transformation volume; and both of them contribute to higher fracture toughness and strength.