CAJ | 학술논문

以烧结镁砂和单斜氧化锆粉为原料，进行了MgO-ZrO2复合材料的制备。通过XRD和SEM-EDS分析及显气孔率、体积密度、常温抗折强度、线膨胀系数和1100℃~室温水冷热震稳定性的测试，探讨了ZrO2的用量对MgO-ZrO2复合材料的烧结和热震稳定性的影响。结果表明：随着ZrO2用量的增加，复合材料试样的致密度和常温抗折强度呈现出先增大后减小的趋势，复合材料试样的热膨胀系数逐步减小，复合材料试样的热震稳定性呈现出先变好后变差的趋势；当ZrO2用量为30%时，MgO-ZrO2复合材料试样的烧结性能和热震稳定性最好。
이소결미사화단사양화고분위원료，진행료MgO-ZrO2복합재료적제비。통과XRD화SEM-EDS분석급현기공솔、체적밀도、상온항절강도、선팽창계수화1100℃~실온수랭열진은정성적측시，탐토료ZrO2적용량대MgO-ZrO2복합재료적소결화열진은정성적영향。결과표명：수착ZrO2용량적증가，복합재료시양적치밀도화상온항절강도정현출선증대후감소적추세，복합재료시양적열팽창계수축보감소，복합재료시양적열진은정성정현출선변호후변차적추세；당ZrO2용량위30%시，MgO-ZrO2복합재료시양적소결성능화열진은정성최호。
MgO-ZrO2 composites were prepared using magnesite clinker and monocline zirconia as raw materials. The inlfuence of ZrO2 content on the sintering and thermal shock stability of MgO-ZrO2 composites were investigated by XRD SEM-EDS and the tests of apparent porosity, bulk density, lfexural strength, linear expansibility and thermal shock stability. The results showed:with the increasing amount of ZrO2 , their density and lfexural strength at room temperature ifrst increased and then decreased, their linear expansibility reduced gradually, and their thermal shock stability ifrst rose and then lowered;MgO-ZrO2 composites showed excellent sintering performance and thermal shock stability at 30%ZrO2.