MATERIAL OF ILIMENITE SYSTEM THERMISTOR USING FOR HIGH TEMPERATURE

摘要

The present invention relates to an ilmenite-based high temperature thermistor composition, the conventional high temperature thermistor has a narrow temperature range of use and unstable crystal structure in the high temperature range, so there is a problem in reliability, and to respond to the trend of widening the temperature range of use To this end, development of high temperature thermistors having a low B constant of about 5,000 to 10,000 and having a stable crystal structure has been required.;The present invention is based on (a) nickel titanate (NiTiO ₃ ) + (b) magnesium titanate (MgTiO ₃ ) + (c) chromium oxide (Cr ₂ O ₃ ) based composition by weight% 0≤a≤90 By providing an ilmenite-based high temperature thermistor composition having a + b + c of 100 in the range of 10 ≦ b ≦ 80 and 0 ≦ c ≦ 40, it is possible to detect exhaust temperatures of industrial equipment such as automobiles, various engines, boilers, and the like. It can be applied to the control to improve the reliability.