Effect of Sintering Temperature on Properties of YAG Porous Ceramics via Atmospheric Sintering Method

Abstract

YAG materials have a number of unique properties, the application is very extensive, the burn is due to the temperature is too high or the residence time at high temperatures is caused. The undercurrent is the sintering temperature is too low or the holding time is not enough, resulting in product performance is too low or too small shrinkage. In this paper, the effect of sintering temperature on properties of YAG porous ceramics was investigated. The results showed that the firing temperature of the ingredients will be different and cause the same sintering process and sintering additives content of different samples burned. The increase in the content of SiO2 in the furnish with the sintering aid tends to occur. the effect of temperature on the mechanical properties of the samples after sintering was significant, so the raw materials include 60wt%YAG, 10wt% CaO, 10wt% SiO2 and 20wt% soluble starch, the molding process in 20MPa pressure 10min, the sintering at 1500°C for 2h, the sample porosity is 42.2%, the compressive strength is 5.8MPa, the outside shape is keep intact and the better pore microstructure is shown.

Effect of Forming Technology on the Properties of Quartz Sands Porous Materials via Dry Pressing Method

“…As the pressure increases, the contact surface between the particles increases, and the gap between the particles decreases. Therefore, the distance of the liquid phase flow decreases, and the roundness of the pores is slightly increased [17][18]. The molding pressure is preferably 5 MPa by comprehensive evaluation of porosity and microstructure.…”

Research on Control Factors and Performance of YAG Porous Ceramics

“…By comparison with single crystals, the mass manufacture of YAG polycrystalline powder materials is easily realized [5]. The performance of polycrystalline materials is better than that of single crystal materials under specific conditions so they can be used as a substitute for single crystalmaterials to produce structural and functional materials [6][7].…”