【摘 要】
：
Sintering behavior and microstructure evolution of Bayer processed alumina is strongly influenced by powder chemistry(i.e.,impurities and dopants).Bayer pro
【机 构】
：
Department of Materials Science and Engineering,The Pennsylvania State University,USA
【出 处】
：
The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)
论文部分内容阅读
Sintering behavior and microstructure evolution of Bayer processed alumina is strongly influenced by powder chemistry(i.e.,impurities and dopants).Bayer processed alumina is usually classified based on its Na2O content,i.e.normal and low soda alumina.During the Bayer process,Na2O is introduced during the digestion of ground bauxite in caustic soda to extract alumina.A small amount of this impurity may form sodium β-alumina(Na2O·11Al2O3).
其他文献
Silicon nitride has a high intrinsic thermal conductivity competing with aluminum nitride.However,the thermal conductivity of silicon nitride ceramics is fa
With honeycomb lattice of sp2 hybridized carbon atoms,graphene has demonstrated excellent mechanical properties.One of its promising applications is to crea
毛乌素沙漠是我国的大沙区之一,降雨稀少、土壤干旱环境对多数沙漠植物生长造成严重威胁,也是形成沙区植被稀疏、种类单纯的根本原因。掌握不同沙地类型土壤水分空间、时间分
Searching for intrinsic ductile or damage tolerant ceramics has been the target of many researches for several decades.Layered crystal structures,weak chemi
三叶草属(Trifolium L.)植物是优良的一年生或多年生豆科牧草,具有固氮能力,可以提高土壤肥力、增加地面覆盖、控制杂草生长、保持土壤湿度、减少土壤侵蚀,是保持水土的好材料。高加索三叶草(T.ambiguum Bieb.)产量高、抗旱、抗寒能力强,但其固氮能力差。白三叶草(T.repens L.)根瘤固氮能力强,但其根系浅,喜湿、喜暖。为了培育结合双亲优良特性的三叶草新种,本试验将引自新西兰
A large variety of materials contain both carbon and oxygen atoms,in particular oxidized carbides,carbon alloys(ZrC,UC,steels...),and oxycarbide compounds(S
Master sintering curve(MSC)analysis has been extensively applied to a range of ceramic materials since its introduction by Johnson and Su in 1996.The appeal
Catalytic behaviors related to recombination reactions of dissociated oxygen atoms on the surface of ZrB2-SiC ultra-high temperature ceramics was investigat
地理信息系统(GIS)技术凭借着强大的空间数据管理和分析功能已经渗透到了各行各业,为各个行业的信息化提供技术支持。石油行业对空间数据的依赖强,很早就引入GIS技术用于空间
A systematical ab initio analysis on MP2O7(M =Ti,Hf)is presented in this work.Density functional theory(DFT)computations were performed for the electronic,m