Densification of hydroxyapatite/zirconia nanocomposites fabricated via low-temperature mineralization sintering process and their mechanical properties.

ABSTRACT: Hydroxyapatite/zirconia (HAP/ZrO₂) composites were fabricated via the low-temperature mineralization sintering process (LMSP) at an extremely low temperature of 130 °C to enhance the mechanical properties of HAP and broaden its practical applications. For this purpose, 5-20 vol% calcia-stabilized ZrO₂ were introduced into HAP, and HAP/ZrO₂ nanoparticles, mixed with simulated body fluid, were densified under a uniaxial pressure of 800 MPa at 130 °C. At 10 vol% ZrO₂, the relative density of the HAP/ZrO₂ composite was determined to be 88.3 ± 1.1%. Additionally, it exhibited the highest values of mechanical properties such as the Vickers hardness (3.68 ± 0.18 GPa), fracture toughness (1.11 ± 0.10 MPa·m^1/2), biaxial flexural stre

SUBMITTER: Seo Y 

PROVIDER: S-EPMC11747164 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature