CAJ | 학술논문

利用赤泥、钢渣和滑石为原料,在没有特殊添加剂的情况下,经过模压成形与烧结制备赤泥/钢渣陶瓷材料.通过高倍电镜、差热分析与X射线衍射对材料的形貌与结构进行观察与分析,并测试吸水率与抗弯强度,研究原料的成分与粒径对陶瓷材料性能的影响.结果表明,赤泥/钢渣陶瓷材料的主晶相为透辉石和钙长石.原料粉末粒度越小,陶瓷的性能越好;赤泥用量为70%时材料的性能最佳.综合考虑陶瓷砖块的性能与能源消耗,采用烧结温度为1 170℃,选用粒径小于74μm的原料粉末,在赤泥、转炉钢渣和滑石的用量分别为60%~70%、20%~30%和 10%条件下制备赤泥/钢渣陶瓷材料,材料的显气孔率和吸水率都达到建筑陶瓷的国家标准(GB/T4100-2006)技术要求的0.73%和0.03%,抗弯强度超过88 MPa.
이용적니、강사화활석위원료,재몰유특수첨가제적정황하,경과모압성형여소결제비적니/강사도자재료.통과고배전경、차열분석여X사선연사대재료적형모여결구진행관찰여분석,병측시흡수솔여항만강도,연구원료적성분여립경대도자재료성능적영향.결과표명,적니/강사도자재료적주정상위투휘석화개장석.원료분말립도월소,도자적성능월호;적니용량위70%시재료적성능최가.종합고필도자전괴적성능여능원소모,채용소결온도위1 170℃,선용립경소우74μm적원료분말,재적니、전로강사화활석적용량분별위60%~70%、20%~30%화 10%조건하제비적니/강사도자재료,재료적현기공솔화흡수솔도체도건축도자적국가표준(GB/T4100-2006)기술요구적0.73%화0.03%,항만강도초과88 MPa.
In order to study the microstructure and properties of the ceramic material prepared from red mud and basic oxygen furnace (BOF) slag, the green body of the ceramic material was produced from red mud, BOF slag and talc by compression molding and sintering without special additive. The effect of particle size and composition of raw materials on properties of the ceramic material was studied by differential thermal analysis, X-ray diffraction analysis and scanning electron microscopy. The results show that the ceramic material possesses the best mechanical properties while the ceramic composition is adopted as 70% red mud, and the properties are better when the particle size of the raw material powder is smaller. The dominated crystal phase in the ceramic is the diopside and anorthite. When the sintering temperature is 1 170℃, the particle size of the raw material powder is smaller than 74μm, and the ceramic composition is adopted as 70% red mud, 20% BOF slag, and 10% talc, meanwhilethe ceramic material obtains the porosity of 0.73%, water absorption of 0.03% and flexural strength of 97.87 MPa. That reaches the national professional standard GB/T4100-2006 of construction ceramic.