材料期刊网

室温离子液体辅助制备中孔 γ-Al₂O₃

刘志 , 邓丽萍 , 宋岩 , 刘兴海

无机材料学报 doi:10.3724/SP.J.1077.2011.00134

液相反应条件下,以薄姆石溶胶为铝源, 室温离子液体1-甲基-3-丁基咪唑四氟硼酸盐([BMIM][BF₄])存在下制备了晶态结构 中孔 γ-Al₂O₃. 采用N₂物理吸附,X射线衍射, 透射电子显微镜,^...

关键词: 室温离子液体 , mesoporous material , alumina , synthesis

表面活性剂对镍-磷-纳米氧化铝复合镀的影响

周琦 , 邵忠宝 , 贺春林 , 邵忠财 , 才庆魁 , 高维娜

中国腐蚀与防护学报

研究了阴离子型表面活性剂(十二烷基苯磺酸钠、十二烷基硫酸钠)和阳离子型表面活性剂(三乙醇胺)对镍-磷-纳米氧化铝复合镀性能的影响.讨论了表面活性剂的种类、加入量对沉积速度、镀层的硬度和耐磨性能的影响.通过扫描电镜(SEM)观察各种复合镀层形貌，利用能谱仪(EDS)测量镀层中纳米Al2O3粒子的复...

关键词: 复合镀 , electroless plating , Ni-P , nanometer , alumina

SiC晶须-Al_2O_3复合陶瓷显微结构的电镜研究

闻立时 , 赵航炜 , 黄荣芳

材料研究学报

本文采用X 射线衍射、扫描电镜、分析电子显微镜和高分辩电镜,研究了热压复合SiC-A1_2O_3陶瓷的相组成、晶须、晶须-基体界面间的显微结构。结果表明,复合陶瓷中的晶须为15R 型SiC,基体为三方晶型的α-Al_2O_3。晶须内有大量的层错和孪晶;晶须-基体界面间存在一个过渡层,并有一定的取向关...

关键词: 碳化硅 , alumina , whisker , microstructure , ceramic

渗铝镍基高温合金热腐蚀行为研究

安涛峰 , 孙晓峰 , 管恒荣等

腐蚀学报（英文）

采用低压气相渗铝工艺制备铝化物涂层 ,在涂层表面涂敷不同NaCl+Na2 SO4 含量的熔盐进行 90 0℃热腐蚀实验 .结果表明 ,涂层对NaCl含量不敏感 ,这与涂层表面生成Al2 O3 氧化膜有关 .涂层能有效提高合金抗热腐蚀性能 .

关键词: 渗铝镍基高温合金 , hot-corrosion , alumina

Surface modification of ceramic materials using excimer laser

材料科学技术（英文）

Changes of surface morphology following XeCl excimer laser irradiation were investigated for three engineering ceramic materials (Al2O3, Al2O3-SiC nanocomposite and Si3N4) Al2O3 and Al2O3-SiC nanocomposite samples exhibit a smooth rapid melt layer on the surface, and the formation of the metastable ...

关键词: alumina

Nanotube Arrays in Porous Anodic Alumina Membranes

Liang LI , Naoto KOSHIZAKI

材料科学技术（英文）

This review summarizes the various techniques developed for fabricating nanotube arrays in porous anodic alumina membranes (AAMs). After a brief introduction to the fabrication process of AAMs, taking carbons, metals, semiconductors, organics, biomoleculars, and heterojunctions as typical examples, ...

关键词: Nanotube , Template , Anodic , alumina , membra

BIPOLAR PULSED PECVD OF ALUMINA HARD COATINGS

O.Kyrylov , R.Cremer , D.Neuschütz

金属学报(英文版)

In the last years a variety of plasma sources have been developed for film depositionby plasma activated deposition techniques. In addition to RF- and DC-sources, pulsedplasma sources are gaining increased attention. This interest is driven by the wish ofdepositing coatings with superior properties ...

关键词: alumina , null , null , null

INTRODUCTION TO NEW TECHNOLOGY AND EQUIPMENTS IN PINGGUO ALUMINA REFINERY

S.J. Yang , G. Y. Gan and L.Z. Wang (Pingguo Aluminum Company , Guangxi 531400 , China)

金属学报(英文版)

The new technology and equipments used in alumina refinery in PINGGUO ALUMINUM COMPANY were introduced. Problems encountered during early period of its operation and improvements to the process and equipments were discussed. Current opemtion situation and pedect technical and economical figures were...

关键词: alumina , null , null , null

FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

LIU Miaoxiu CHENG Zhaonian CHEN Nianyi Shanghai Institute of Metallurgy , Academia Sinica , Shanghai , ChinaKE Jiajun Institute of Chemical Metallurgy , Academia Sinica , Beijing , China CHEN Nianyi , Professor , Shanghai Institute of Metallurgy , Academia Sinica , Shanghai 200050 , China

金属学报(英文版)

The regularity of the carbonization process in alumina production has been summarized by the pattern recognition and regression.A mathematical model has been proposed to describe the factors affecting the silica content of aluminium hydroxide product.The high concentration of aluminate ions in solut...

关键词: carbonization , null , null , null

FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

LIU Miaoxiu CHENG Zhaonian CHEN Nianyi Shanghai Institute of Metallurgy , Academia Sinica , Shanghai , ChinaKE Jiajun Institute of Chemical Metallurgy , Academia Sinica , Beijing , China

金属学报(英文版)

The regularity of the carbonization process in alumina production has been summarized by the pattern recognition and regression.A mathematical model has been proposed to describe the factors affecting the silica content of aluminium hydroxide product.The high concentration of aluminate ions in solut...

关键词: carbonization , null , null , null