Stability of ZrO2 in ZrO2 -C composite materials

摘要：

Y2O3-stabilized ZrO2 and MgO-stabilized ZrO2 powders were prepared with ZrOCl2-8H2O,Y(NO3)3?H2O,Mg(NO3)2?6H2O and ammonia water,and ZrO2-C composite materials containing 20 wt.% graphite and 80 wt.% ZrO2 powders were prepared by using phenolic resin as binder. The slag resistance test was carried out by static crucible method. The effects of stabilizers amounts and reaction temperature on the stability of ZrO2 in ZrO2-C composite materials were investigated. The results showed that when pco was 0.1 MPa and the temperature was above 1926 K,ZrO2 in ZrO2-C composite materials was unstable.Comparing with MgO stabilizer,Y2O3 stabilizer could increase the thermal stability of ZrO2 dramatically. The slag test showed that ZrO2-C materials containing Y2O3 sta bilizer had the best slag corrosion and penetration resistance.

关键词： composite materials ZrO2 stability stabilizers ZrC

作者: MA Beiyue SUN Yong SUN Shuo ZHU Qiang YU Jingkun WANG Jingxin

作者单位: School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China Beijing General Research Institute for Non-Ferrous Metals,Beijing 100088,China

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 849-852

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）