Fabrication of ZrO2-Ti Composites by Slip Casting Method

Abstract

Slip casting is one of the most popular shaping method in ceramic technology which allows producing a large number of elements in small period of time. This shaping technique gives a possibility to fabricate ceramic or composite materials such as ZrO 2 -Ti. Ti with its properties (low density, high melting point, high-temperature strength, good corrosion resistance and others) combine with ZrO 2 (high flexure strength, high compression resistance and very high K IC ) can be considered for different applications as constructional and functional materials. For the preparation of such composite nanometric zirconium oxide powder stabilized by 3 mol% Y 2 O 3 and micrometric titanium powder were used. Water-based slurries with 35, 40, 45 and 50 vol.% solid phase content were prepared with 3, 10 and 15 vol.% addition of titanium powder. Zeta potential and pH of prepared slurries were considered. The pH changes were tested as a function of Ti content. The viscosity of the prepared slurries was measured. The sedimentation tests for selected slurries were performed. The casting rate for slurry of 35% solid phase with 10 vol.% Ti was examined. These measurements showed good stability of slurries. With the increasing of the solid phase concentration the density of the green bodies increased. However, the increase of the content of Ti powder reduced the density of green body samples. For selected samples the SEM observations was carried out. Composites produced by slip casting were characterized by a homogenous distribution of Ti particles in the ZrO 2 matrix.

Role of walnut ac-based Si-ZrO2: investigation of rietveld refinement, optical and electrochemical properties for pseudo-capacitor applications

“…Meanwhile, as the silicon concentration increases in zirconia, it shows the minor formation of agglomerates which may be due to the sticky nature of zirconia or by the interfacial replacement of ions. The calculated average particle size is found in the range of 217-212 nm [36][37][38].…”

Sintering behavior and thermal expansion of zirconia–titanium composites

“…The preparation of the slip casting slurries based on own earlier research. The detailed description of the procedure and characterization of slip casting slurries were presented in the paper [24]. Titanium powder content in the composite samples was 3 and 10 vol%, respectively.…”

Manufacturing of Al2O3/Ni/Ti Composites Enhanced by Intermetallic Phases

“…The results of our own research and data from the literature on using the slip casting method for the production of ceramic-metal composites show that it is one of the most effective methods of forming such composites [20][21][22][23][24]. In recent years, intermetallic compounds have often been used to improve the mechanical properties of metallic materials, including light-alloy multilayer composites [15][16][17][18][19][20][21][22][23][24][25][26][27].…”