利用锰渣制备钙长石/顽辉石复相陶瓷  

Preparation of Anorthite/Enstatite Multiphase Ceramics by Using Manganese Residue as Raw Material

作　　者：吴建锋[1] 宋谋胜[1,2] 徐晓虹[1] 陈霞[1] 任潇[1] 黎海华 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070 [2]铜仁学院物理与电子工程学院,铜仁554300

出　　处：《武汉理工大学学报》2014年第7期6-10,34,共6页Journal of Wuhan University of Technology

基　　金：国家"973"项目(2010CB227105);贵州省自然科学技术联合基金(LKT[2012]14)

摘　　要：以电解锰渣、滑石为主要原料,添加适当的铝矾土和石英,在1 100～1 200℃温度内成功制备了钙长石、顽辉石陶瓷。实验发现,单相钙长石陶瓷在1 140℃以下就能生成,复相钙长石/顽辉石陶瓷需在1 140℃以上方能形成,而在1 200℃则会出现过烧现象。研究表明,在1 100～1 200℃烧结温度内,随着烧结温度升高,样品吸水率（Wa）和气孔率（Pa）均逐渐减小,体积密度（D）却逐渐增大,经1 180℃温度烧成样品的Wa和Pa极小而D最高（2.38g/cm3）。在1 100～1 160℃内,样品的抗折强度快速增加,在1 160～1 180℃时达到稳定状态,约105MPa,而一旦超过1 180℃,样品的抗折强度急剧下降。Using electrolytic manganese residue and talc as the main materials,along with some bauxite and quartz,the anorthite and enstatite ceramics were prepared at 1 100～1 200℃.It was found that the anorthite mono-phase ceramic was synthesized below 1 140℃,and the anorthite/enstatite multiphase ceramics were fabricated above 1 140℃.However,the overburning would arise at 1 200℃for the sintered sample.The experimental results show that,with the sintering temperature increasing,both the water absorption（Wa）and porosity（Pa）gradually decrease,but the bulk density（D）increases at 1 100～1 200℃.The sample exhibited the relatively lower Waand Pa,but the highest D（2.38g/cm3）at 1 180℃.Sintered at 1 100～1 160℃,the bending strength of samples increases rapidly with the temperature rising,and reaches the stable value at 1 160～1 180 ℃,about 105 MPa.Once exceeding 1 180 ℃,however,the bending strength decreases sharply.

关 键 词：锰渣 钙长石/顽辉石 复相陶瓷 烧结 抗折强度 

分 类 号：TB321[一般工业技术—材料科学与工程]