Abstract:
Metal oxide group NTC theremistor material made from MnCO.sub.3 +NiO+CuO+Co.sub.3 O.sub.4 +FeO.sub.3 TiO.sub.2 group as a basic composition. The invention is characterized by metal oxide group thermistor material made from MnCO.sub.3 +NiO+ZnO+Co.sub.3 O.sub.4 +Fe.sub.2 O.sub.3 +TiO.sub.2 group or MnCO.sub.3 +NiO+CuO+ZnO+Fe.sub.2 O.sub.3 +TiO.sub.2 group as a basic composition having respectively composition amounts by weight for each ingredient described in the text. According to the invention, the sintering temperature of the material can be reduced relative to the conventional material, and therefore there is advantage that manufacturing expense of the thermistor can be reduced.
Abstract translation:金属氧化物NTC电阻材料由MnCO3 + NiO + CuO + Co3O4 + FeO3 TiO2组成,作为基本成分。 本发明的特征在于由MnCO 3 + NiO + ZnO + Co 3 O 4 + Fe 2 O 3 + TiO 2基团或MnCO 3 + NiO + CuO + ZnO + Fe 2 O 3 + TiO 2组成的金属氧化物基热敏电阻材料,其基本组成分别为每种成分的组成量 在文中描述。 根据本发明,材料的烧结温度相对于常规材料可以降低,因此有利于降低热敏电阻的制造成本。
Abstract:
A thick film thermistor composition is prepared by mixing metal oxide powders of at least two of Mn, Co and Ni, and oxide powder of Ru as a noble metal, firing the resulting mixture, thereby obtaining a compound oxide thermistor of spinel structure, pulverizing the resulting compound oxide thermistor, and mixing and kneading the resulting thermistor powder with glass powder and oxide powder of Ru for adjusting a resistance.
Abstract:
Thermistors comprising transition metal such as iron, rare earth of the lanthanide series or yttrium, and oxygen exhibit sufficient independence to variation in oxygen partial pressure over a range of exhaust gas conditions of internal combustion engines as to make them particularly suitable for temperature compensation of oxygen sensors such as those derived from titania as well as temperature sensing in other oxygen varying environments.
Abstract:
Glassy metal alloys of compositions in the Be-Ti-Zr system suitable as temperature sensing elements for resistance thermometers are provided. The compositions consist essentially of about 20 to 45 atom percent beryllium, about 2 to 80 atom percent zirconium, 0 to about 2 atom percent of at least one metal of vanadium, chromium, manganese, iron, nickel and cobalt, and the balance essentially titanium and incidental impurities. The alloys of the invention combine a high temperature coefficient of resistance and negligible temperature-dependent magneto-resistance.
Abstract:
Thermistors having a resistor which comprises aluminum oxide (Al.sub.2 O.sub.3) and chromium oxide (Cr.sub.2 O.sub.3) are excellent in heat resistance even when they are used at a high temperature of 400.degree. - 1,100.degree.C. Proportion of Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3 is preferably 11 mol % of Cr.sub.2 O.sub.3 and 89 mol % - 6 mol % of Al.sub.2 O.sub.3. Furthermore, calcium oxide and silicon oxide may be added to accelerate the sintering of the Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3. In addition, manganese oxide or titamium oxide may be contained in the resistor for more accurate control of temperature.
Abstract:
An oxygen ion transport type thermistor comprising an oxygen ion type solid solution consisting of 50-95 mol percent of an oxide of tetravalent metals and 5-50 mol percent of oxide(s) of divalent and/or trivalent metals and two metal lead wires embedded in said solid solution, in which said two metal wires are embedded and held oppositely in substantially the center line in the thickness direction of said solid solution, parallel and adequately space and that the porosity of said oxygen ion type solid solution is 7-55 percent.