论文部分内容阅读
采用电炉烧制压制小饼的微型烧结方法对褐铁矿进行烧结,利用扫描电镜、X射线衍射对单一褐铁矿在不同烧结温度下的矿物组成以及矿相结构进行分析研究,利用万能压力机测定相应烧结试样的抗压强度,揭示矿物组成和结构与其抗压强度间的相互关系。研究表明:单一褐铁矿烧结矿相主要是赤铁矿和复合铁酸钙形成的交织熔蚀结构,随着烧结温度的升高,复合铁酸钙的微观尺寸明显增大,试样的抗压强度在1 260℃时最大。
The limonite was sintered by the mini-sintering method of baking and compacting the electric furnace, the mineral composition and the phase structure of the single limonite at different sintering temperatures were analyzed by scanning electron microscopy and X-ray diffraction, The compressive strength of the corresponding sintered samples was measured to reveal the correlation between mineral composition and structure and compressive strength. The results show that the single limonite sinter is mainly composed of hematite and composite calcium ferrite. The microstructure of composite ferrite increases with the increase of sintering temperature, The maximum pressure at 1 260 ℃.