【摘要】 在Ａｌ＿２Ｏ＿３中添加５－１５ｗｔ％ＭｇＡｌ＿２Ｏ＿４，采用热压注法制备Ａｌ＿２Ｏ＿３－ＭｇＡｌ＿２Ｏ４陶瓷。研究表明，Ａｌ＿２Ｏ＿３－ＭｇＡｌ＿２Ｏ＿４陶瓷具有良好的高温电阻率和抗熔渣－种子的腐蚀能力，经过进一步改进可望作为燃煤ＭＨＤ发电通道（半热壁型）阳极区电极间绝缘片材料。更多还原

【Abstract】 Al2O3-MgAl2O4 ceramics can be turned out by adding 5-15%MgAl2O4 to Al2O3 and using injectionmolding process. The experimental results show that this material possesses high electric resistivity at hightemperature and good resistance to corrosion of fused coal-slag and seed.It is hopeful that it can be used asinsulation plates between electrodes in anode for coal-fired MHD generating channels in the near future.更多还原