Investigation of wear resistance of the porcelain tile bodies by solid particle impingement using alumina particles

Development of optical, microstructural and mechanical properties of porcelain stonewares

“…The decrease in liquid phase viscosity at higher temperature resulted from spodumene addition. The decrease in the viscosity contributed to rise up in the amount of mullite and the growth of mullite crystals [7,8]. In this study, the presence of alumina, zircon and mullite crystals provided the improvement of mechanical properties.…”

“…The mechanical properties such as, hardness, elastic modulus, wear behaviours and bending strength were investigated. The elastic module was determined using ultrasonic test method (Olympus Panametrics Model 5800 Computer Controlled Pulsar/Receiver, Tektronix TDS 1012 Two Channel Digital Storage Oscilloscope) [8]. Micro-hardness tests were performed on fired samples, at the indentation loads of 0.96 N (Galileo Durametria, Viskers HV1 OD).…”

“…The amount of quartz crystal in STD and SW1 bodies is higher than that of SW2, SW3 and SW4 bodies due to the fact that these bodies contain quartz. With the spodumene addition in SW2, SW3 and SW4 bodies, mullite crystals amount increased because of the fact that spodumene (Li 2 O.Al 2 O 3 .4SiO 2 ) is highly effective fluxing agent [7][8][9]. The addition of spodumene is responsible for decreasing in the viscosity of the liquid phase and also results in a further quartz and albite dissolution.…”

“…The addition of spodumene is responsible for decreasing in the viscosity of the liquid phase and also results in a further quartz and albite dissolution. As can be seen in QPR analysis, the decrease in the viscosity resulted in the growth of mullite crystals and also contributed to increase in the amount of mullite crystals [7,8]. Although the amount of the mullite crystal increased, the total amount of crystal decreased slightly compared to the STD body, because the addition of spodumene resulted in a decreased in the viscosity of liquid phase and increase in the dissolution of the albite and quartz crystals [7].…”

“…Although total porosity increased, bulk density and bending strength increased. The decrease in the viscosity of liquid phase due to the addition of spodumene resulted in a rising up in densification rate [7][8][9][10]. The decrease in the viscosity also resulted in an increase in the amount of mullite crystals [11].…”