Based on the experimental data and phase compositions, the phase diagram of the CaO-SiO 2 -CeO 2 -10.0wt.% Al 2 O 3 -5.0wt.% MgO system was constructed at 1300°C and 1400°C. There were great discrepancies between the experimental results and calculated results by FactSage 8.2. The ...
IV. Polythermal sections of the phase diagram Three polythermal sections have been constructed to give a fuller description of the phase diagram structure for the Al 2 O 3 -ZrO 2 -Sm 2 O 3 system over... SM Lakiza,VP Red’Ko,LM Lopato - 《Powder Metallurgy & Metal Ceramics》 被引...
Al 2 O 3 催化 剂的表面特征,探索了 CeO 2 对 CuO 催化剂的助催化作用。他 们也认为在 CuO 催化剂中添加适量的 CeO 2 ,可促进催化剂表 面 Cu + 含量的增加,从而有利于 CO 氧化催化活性的提高。 J.Soria 等为了深入了解 CeO 2 与其表面负载的金属之间的 相互作用,利用 ESR 研究了经过不同除气、还原...
Carbon Monoxide Oxidation Characteristics Over the Al2O3-supported CeO2-ZrO2 Catalysts Prepared by the Microemulsion Method Ceria-zirconia ultrafine particles supported on Al2O3 powders by the microemulsion method, CeO2-ZrO2/Al2O3, provided the high CO oxidation activity than that of the same c....
Phase Diagram of the System Al2O3-CeO2 at Liquidus Temperature 90.0mol% CeO2 was further examined by the high-temperature powder X-ray diffractometry, and the presence of a new orthorhombic phase was established.A tentative phase disgram for the Al2O3-CeO2 system at high temperatures is ....
Al2o3的 催化剂 以及 CuO/AI20 3、CuO/ZSM5、c O2 等都作了恬 性对 比,井通过 XRD、ST EM 、A uger、XPS 等 多种 表征手段对还 原前后的各种催化剂进 行 了有 效 的表 征。发现该 催化体 系具 有某些不同寻常之处:co 的 氧化反应 点火 温度 (Light-off t豇n— ...
Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150℃ in air The isothermal phase diagram of the CuO-AlO-SiO ternary system at 1150掳C was reported for the samples which were prepared from sol-gel method and quenched... Q Xiao,X Zhao,L Huang,....
This work aims at studying the effect of sintering temperature on the phase-related peculiarities of microstructures that cause changes in the flexural strength and fracture toughness of fine-grained ZrO2–Y2O3–Al2O3–CoO–CeO2–Fe2O3 ceramics. Sintering at an intermediate temperature of 1580 °...
Figure 1.Schematic diagram of the device for thermocatalytic decomposition. 3. Results and Discussion 3.1. Thermal Catalytic Decomposition of DMMP by CuO-CeO2/γ-Al2O3 Figure 2shows the DMMP conversion of CuO/γ-Al2O3and CuO-CeO2/γ-Al2O3as a function of the reaction time. The protecti...
Al2O3 and CeO2 nanoparticles have been involved in a wide range of applications due to their low-cost manufacturing and easy handling. The combination of these two metal oxide nanoparticles has been used as a suitable sintering additive for the liquid-phase sintering of solid-state sintered ...