| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a nonlinear resistor which can be increased in thickness and size, has a low initiating voltage, and is excellent in discharge withstand current rating characteristic and voltage-applied life characteristic and the resistance value of which little fluctuates even when the size of the resistor is increased, and to provide a method of manufacturing the resistor. SOLUTION: This nonlinear resistor contains a zinc oxide as a main ingredient and bismuth, antimony, cobalt, manganese, and nickel as accessory ingredients. The contents of the bismuth, antimony, cobalt, manganese, and nickel are respectively adjusted to 0.1-5.0 mol% in terms of bismuth oxide (Bi2O3), 0.1-2.0 mol% in terms of antimony oxide (Sb2O3), 0-1-2.0 mol% in terms of cobalt oxide (CoO), 0.1-2.0 mol% in terms of manganese oxide (MnO), and 0.1-2.0 mol% in terms of nickel oxide (NiO). In addition, the relative ratios in terms of oxides between the bismuth and antimony and between the bismuth and nickel are respectively adjusted to Sb2O3/Bi2O3<0.5 and NiO/Bi2O3<0.5.</p> |
