CAJ | 학술논문

以质量分数45％的Mg，Y-PSZ骨料，55％的Mg，Y-PSZ细粉，外加5％（w）的PVA结合剂为基础配方制备ZrO2定径水口，分别以质量分数为3％、6％、9％、12％的溶胶-凝胶法制备的Al2 O3-ZrO2复合粉等量取代Mg，Y-PSZ细粉，研究复合粉对锆质定径水口物理性能、物相组成和显微结构的影响。结果表明：添加3％（w） Al2 O3-ZrO2复合粉的改性锆质定径水口的各项性能明显优于目前生产工艺采用的未添加复合粉的锆质定径水口，其抗热震性为未添加复合粉的6倍。
이질량분수45％적Mg，Y-PSZ골료，55％적Mg，Y-PSZ세분，외가5％（w）적PVA결합제위기출배방제비ZrO2정경수구，분별이질량분수위3％、6％、9％、12％적용효-응효법제비적Al2 O3-ZrO2복합분등량취대Mg，Y-PSZ세분，연구복합분대고질정경수구물이성능、물상조성화현미결구적영향。결과표명：첨가3％（w） Al2 O3-ZrO2복합분적개성고질정경수구적각항성능명현우우목전생산공예채용적미첨가복합분적고질정경수구，기항열진성위미첨가복합분적6배。
ZrO2 sizing nozzle with basic formulation were prepared using 45%(in mass,the same hereinaf-ter)(Mg,Y)-PSZ aggregate,55%(Mg,Y)-PSZ fines and 5%PVA binder.Al2 O3-ZrO2 composite powders (3%,6%,9% and 12%)prepared by sol-gel method were added to replace the equal amount of (Mg,Y)-PSZ fines.Effects of Al2 O3-ZrO2 composite powder on physical properties,phase composition and micro-structure of the ZrO2 sizing nozzle were studied.The results show that:the performances of the modified sizing nozzles with 3%Al2 O3-ZrO2 composite powder are better than those of the nozzles without compos-ite powder used in the current production process,and the thermal shock resistance of the former nozzle is six times of that of the latter one.