以花岗岩废渣为主要原料，用熔融法制备了以 ZrO 2为晶核剂的 R2 O-MgO-Al2 O3-SiO2(RMAS)系微晶玻璃.采用差示扫描量热法(DSC)、X 射线衍射(XRD)、扫描电子显微镜(SEM)等测试方法研究了晶化温度对 RMASZ 系微晶玻璃的晶相组成、显微结构以及力学性能的影响.结果表明，随晶化温度升高，玻璃中依次析出翡翠石、镁铝硅酸盐、顽火辉石、四方ZrO 2、尖晶石晶体.经780℃核化1 h、1160℃晶化2 h热处理后，其四点抗弯强度达到114．56 MPa.
With granite residual as the raw materials,R2 O-MgO-Al2 O 3-SiO 2-ZrO 2 (RMASZ)system glass-ce-ramics containing ZrO 2 as nucleation agent were prepared by melting technique.The crystal phase composition, microstructure and mechanical properties were investigated by means of differential scanning calorimetry (DSC),X-ray diffraction (XRD)and scanning electron microscopy (SEM),etc.Results indicate that jadeite, magnesium aluminum silicate,enstatite,t-ZrO 2 and spinel crystallized orderly with the increasing crystallization temperature.Furthermore,the glass-ceramics,nucleated at 780 ℃ for 1 h and crystallized at 1 1 60 ℃ for 2 h, have excellent mechanical properties and the four-point flexural strength was 1 14.56 MPa.
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