膨润土含量对石英质多孔陶瓷强度的影响  

Influence of Bentonite Dosage on Strength of Porous Ceramic with Quartz Sand

作　　者：朱素娟[1] 陈永[1] 邓湘云[1,2] 李建保[1,3] 邱文达[1] 章文[1] 

机构地区：[1]海南大学材料与化工学院,海南优势资源化工材料应用技术教育部重点实验室,硅锆钛资源综合开发与利用海南省重点实验室,海口570228 [2]天津师范大学物理与电子信息学院,天津300387 [3]清华大学材料科学与工程系,新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《材料导报》2010年第14期70-73,88,共5页Materials Reports

基　　金：国家高技术研究发展计划(863计划)资助(2007AA03Z524);国家自然科学基金资助(50872093)

摘　　要：以石英砂为主要原料,采用添加造孔剂方法制备石英质多孔陶瓷。采用TG/DSC、XRD、SEM对样品进行晶相分析及微观形貌观察,探讨了膨润土含量对多孔陶瓷干坯强度、抗压强度、断裂强度的影响。结果表明,膨润土含量从0%增加到4%时,试样的干坯强度不断增大,烧结后样品的抗压强度和断裂强度不断增大,但当膨润土含量继续增加时,各性能变化不明显。Porous ceramic is prepared by addition pore-forming material process with quartz sands as main materials. Microstructure and phase identification of porous ceramic are characterized by scanning electronic microscopy （SEM）, X-ray Diffraction（XRD） and thermogravimetry-differential thermal analysis curves（TG/DSC）. The effect of bentonite dosage on the strength （green strength, compress strength, breaking strength） of porous ceramic is investigated. The results show that the green strength, the compress strength and breaking strength of porous ceramic increase with the increase of bentonite（0%-4%）. However, the properties of porous ceramic remain unchange with the bentonite addition continuing to increase hereafter.

关 键 词：膨润土 多孔陶瓷 强度 含量 

分 类 号：TQ174.758[化学工程—陶瓷工业]