Phase Stability of 3Y-TSZ Ceramics After Different Surface Treatments.

MARÍA P. ALBANO; LILIANA B. GARRIDO; LUCAS NOVAES TEIXEIRA; ADALBERTO LUIZ ROSA; PAULO TAMBASCO DE OLIVEIRA

Bento Goncalves ? RG

Congreso; 58º Actas Congresso Brasileiro De Cerâmica; 2014

Asociacion brasileira de ceramica

Fluorapatite (FA) layers with different thickness and microstructures on porous 3 mol% yttria-partially stabilized zirconia (Y-PSZ) substrates have been fabricated by dipping porous zirconia tapes into aqueous fluorapatite slurries. Two different binders, poly(vinyl)alcohol (PVA) and latex were used to prepare the fluorapatite dip coating slips. The influence of the suspension properties and the porous structure of the tape surfaces on the layer formation rate were studied. In addition, the microstructure and the osteoblastic cellular response of the layers produced by using the different dip-coating slips were compared. The casting rate of both FA slurries at the top surface of the tapes was greater than that at the bottom surface. For each tape surface, the casting rate was accelerated and the layer shrink during sintering was reduced by using the dip coating slip with latex. The coating layer produced with latex enhanced the osteogenic potential of osteoblastic cells in vitro.