以菱镁矿、粉石英、二氧化硅微粉为原料,利用原位分解形成气孔技术制备轻质镁橄榄石材料,并借助XRD和SEM等方法研究了烧成温度(分别为1200℃、1300℃、1350℃、1400℃和1450℃)对轻质材料的物相组成和显微结构的影响.结果表明:制备轻质镁橄榄石材料的最佳烧成温度为1300～1400℃,在这一温度范围内烧成制得的轻质镁橄榄石材料有较高的气孔率,气孔平均孔径＜10μm,且分布均匀,耐压强度可达40～50MPa,是一种高强度的轻质耐火材料.
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