Biaxial Flexural Strength of High-Translucence Monolithic Ceramics upon Various Thicknesses

Figure 2

Schematic drawing of the piston-on-three-balls of biaxial flexural strength test (a), (b). Ceramic disc (b) was placed on three balls (c), which were separately arranged in a circular manner at 120° apart from each other (d), and loaded vertically (p) with a round end piston (a) at a speed of 0.5 mm/min until fracture (c). Fracture specimens were further examined microscopically for analysis of fracture (d).

(a)

(b)

(c)

(d)