抄録
The authors have studied anodic oxidation of sintered body of aluminum prepared in nitrogen atmosphere and its formation by using various kinds of forming electrolytes. This paper describes the comparison of electric characteristics between two types of anodized aluminum prepared in nitrogen atmosphere and formed by using two kinds of different forming electrolytes; ammonium borate (NH4)2B4O7 solution and ammonium dihydrogen phosphate (NH4H2PO4) solution. After formation, the aluminum sintered body was coated with manganese dioxide (Mn O2) as a semi-conductor. The comparison was made by measuring V-I characteristics, capacitance, tan δ, etc. The results revealed that ammonium dihydrogen phosphate solution gave better effects than ammonium borate solution.
