CAJ | 학술논문

采用熔铸法制备 SiO2-Al2O3-MgO-CaO-F?玻璃陶瓷，然后进行整体晶化；通过显微结构和物相分析、力学性能检测等手段，研究玻璃陶瓷的相组成对抗弯强度、断裂韧性和显微硬度等力学性能的影响。结果表明：通过调整原料成分配比，可实现对玻璃陶瓷中不同晶相含量的调整；随玻璃陶瓷中氟磷灰石成分(CaHPO4+CaCO3+CaF2)的含量增加，力学性能明显提高；当原料中氟磷灰石成分的理论配比(质量分数)达到40%时，玻璃陶瓷的抗弯强度、断裂韧性、显微硬度都达到实验范围内的最大值，分别为93.22 MPa、3.74 MPa·m1/2和698 MPa。相组成对SiO2-Al2O3-MgO-CaO-F?玻璃陶瓷力学性能的影响主要归因于各种析出相对玻璃陶瓷的增韧效果。
채용용주법제비 SiO2-Al2O3-MgO-CaO-F?파리도자，연후진행정체정화；통과현미결구화물상분석、역학성능검측등수단，연구파리도자적상조성대항만강도、단렬인성화현미경도등역학성능적영향。결과표명：통과조정원료성분배비，가실현대파리도자중불동정상함량적조정；수파리도자중불린회석성분(CaHPO4+CaCO3+CaF2)적함량증가，역학성능명현제고；당원료중불린회석성분적이론배비(질량분수)체도40%시，파리도자적항만강도、단렬인성、현미경도도체도실험범위내적최대치，분별위93.22 MPa、3.74 MPa·m1/2화698 MPa。상조성대SiO2-Al2O3-MgO-CaO-F?파리도자역학성능적영향주요귀인우각충석출상대파리도자적증인효과。
SiO2-Al2O3-MgO-CaO-F? based glass-ceramics were prepared by fusion casting method. The crystallization heat treatment was carried out according to overall crystallization method. The effect of phase composition on the mechanical properties of the glass-ceramics was investigated by SEM, XRD and mechanical performance testing. The results show that the content of the crystal phases in the glass-ceramics can be controlled by adjusting the composition of raw material. With increasing fluorapatite, the mechanical properties of the glass-ceramics are improved significantly. When the nominal fluorapatite content attains to 40%, the mechanical properties have been achieved the top value with bend strength of 93.22 MPa, fracture toughness of 3.74 MPa·m1/2 and microhardness of 698 MPa, respectively. The effect of phase composition on the mechanical properties of SiO2-Al2O3-MgO-CaO-F? based glass-ceramics attributes to the toughening effect of the crystal phases.