کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1260821 | 971760 | 2006 | 5 صفحه PDF | دانلود رایگان |
Effects of doping CeO2 and Er2O3 on the mechanical strength, thermal expansion coefficient, sintering temperature of TiO2-SiO2 ceramics were investigated. The experimental results and the microscopic analysis of SEM, XRD, TG-DSC, FT-IR and TEM show that adding CeO2 and Er2O3 into TiO2-SiO2 ceramics can prohibit the growth of its crystal grains, make their size uniform and form them into a dense structure, which finally enhance its mechanical behaviors, and the lower thermal expansion coefficient that leads to an excellent property of thermal shock resistance. After the reforming TiO2-SiO2 ceramics doped by CeO2 was sintered at 1380 °C, the bending strength reached to 83 MPa, and the thermal expansion coefficient was 9.8 × 10−6/°C within the temperature range of 25 ∼ 800 °C, which provides a promising basis of making equipped honeycomb catalyst of deNox.
Journal: Journal of Rare Earths - Volume 24, Issue 1, Supplement 1, December 2006, Pages 234-238