Nanostructured Alumina Ceramics Made of Chemically Dispersed Aluminum Alloys

摘要：

　　The method has been discussed of pro ducing nanopowder of aluminum hydroxide by chemical dispersion of aluminum and its alloys, which is based on their treatment by aqueous solution of sodium hydrox ide.Resulting from chemical dispersion the precipitate of aluminum hydroxide has been formed consisting of boehmite, bayerite and gibbsite, which contains ions of original aluminum alloy and sodium ions from the aque ous alkali solution.It has been shown that this precipi tate can be used to produce the sintered alumina materi al using traditional ceramic technology.Ceramic, sin tered from dispersed Al-12 wt.% Si alloy, is a compos ite material (basic phases: α-Al2O3 and NaAlSiO4 with adhesive bond type), exhibiting high porosity, strength, and heat resistance.

关键词： Aluminum alloys chemical dispersion nanoscale powders ceramics sintering of ceramics structure properties

作者: V.I.Koshkin D.A.Ivanov A.Y.Omarov A.D.Shlyapin

作者单位: Moscow State Industry University,Russia

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 36-39

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）