An Effect of Sandblasting Process on Mechanical Properties and Surface Roughness of Y-TZP
In order to evaluate the effects of different sandblasting processes on the mechanical properties and surface roughness of zirconia ceramics,different sandblasting processes were used to sandblast the samples.Research has shown that the monoclinic phase content on the surface of zirconia ceramics significantly increases after sandblasting treatment.The larger the particle size of sandblasting raw materials,the more phase transformation they undergo.After sandblasting,the surface roughness increases.Under the same sandblasting conditions,the surface roughness Sa of the sample treated with spherical Al2O3 is much lower than that treated with SiC particles.In sandblasting materials with a particle size of 100 μm.At a sandblasting time of 20 seconds and a pressure of 0.2 MPa,the four point bending strength increased by 27％(SiC)and 21％(Al2O3),respectively.Therefore,Al2O3 particles with spherical particle morphology are more suitable for surface sandblasting treatment.
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