![]() ![]() The poor mechanical properties of cordierite have attracted the use of TiO 2 as a dopant. The study of the different phases of the samples was performed using X-ray diffraction. The sample pellets were sintered at temperatures in the range of 600–1300 ☌ for 3 h. The powders were dry milled for 2 h and then compacted at 240 MPa to form pellets. The green composite ceramic samples obtained were dried at 100 ☌ for 12 h, followed by pre-sintering at 800 ☌ for 3 h. Both observations may be attributed to a decrease in the viscosity of melted feldspar grains, which in turn favours the nucleation and growth of secondary mullite crystals and thus increases the final density of porcelain bodies.Ībstract Cordierite–TiO 2 composite (5–20 wt.%) ceramics for various stoichiometric compositions were synthesised using conventional techniques with standard raw materials. The improvement in mechanical properties could be associated with an increase of both specimen density and relative content of types II and III secondary mullites. Assessment of the mechanical properties of the TiO 2 containing bodies indicated that small addition raises the flexural strength of the standard porcelain. Energy dispersive X-ray analysis of secondary mullite crystals revealed that Ti 4+ enters into the secondary mullite structure forming a Ti 4+ -mullite solid solution. Examination of the product materials using field emission scanning electron microscopy showed a high density of secondary mullite crystals present in the earlier feldspar grain areas of specimens with TiO 2. Results indicated a higher amount of mullite formation in porcelain bodies containing TiO 2. The overall degree of crystalline and amorphous phase content within the porcelain bodies was quantitatively determined using a Rietveld analysis. Porcelain rods were fired under industrial scheduling in a manufacturing kiln. A series of alumina porcelain bodies containing increasing amounts of TiO 2 were prepared by extruding mixtures of raw materials and TiO 2. An interesting and innovative method is used to reflect the corrosion degree of the sample, and the reliability of this method is guaranteed by combining the loss rate of preparing the cathode material.Ībstract The effect of adding TiO 2 to standard alumina porcelain on its microstructure and flexural strength was investigated.To improve the corrosion resistance of mullite-cordierite material was realized by adding CAT as a third component ( one kind of solid waste from the production of ferrotitanium alloy), and it was useful to reuse CAT.Unlike the outdated mullite saggars that had been studied and published in other journals, the saggar studied in this paper was innovative and mature in use. ![]() This study investigated saggars in the market.Thus, the mullite-cordierite-CAT composite material is more suitable for the sintering of Li-ion battery cathode materials. Experimental results demonstrated that CAT could reinforce the consolidation of the matrix in the sintering process and effectively enhance the corrosion resistance of the mullite-cordierite composite material. Optimized crucible samples with various CAT contents were prepared and subjected to static corrosion resistance tests. To improve the corrosion resistance of mullite-cordierite saggar, calcium alumino-titanate (CAT) was introduced as the third component. In this study, a post-mortem analysis of saggars after service was performed to analyze their internal structure and damage mechanisms. ![]()
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