Manganese electrical resistivity

Besides the glass seal interfaces, interactions have also been reported at the interfaces of the metallic interconnect with electrical contact layers, which are inserted between the cathode and the interconnect to minimize interfacial electrical resistance and facilitate stack assembly. For example, perovskites that are typically used for cathodes and considered as potential contact materials have been reported to react with interconnect alloys. Reaction between manganites- and chromia-forming alloys lead to formation of a manganese-containing spinel interlayer that appears to help minimize the contact ASR [219,220], Sr in the perovskite conductive oxides can react with the chromia scale on alloys to form SrCr04 [219,221],... 

The three manganese levels are typical of, respectively. Electric Resistance Welded pipe (ERW) at 1% 0.0 pipe at (a newly developed forming technique for the manufacture of very large pipe out of heavy plate sljieel) and the new I -Mo-Cb steels developed mainly in the U.S. by Amax (Ui). Because of the limited solubility of calcium in steel, the only way these ratios can be achieved, particularly in high steels and for the most critical property levels, is by extreme desulfurization down to 0,00h% max, in the easiest case and 0.001% max. in the most unfavorable situation. 

Another type of resistance thermometer uses metal oxides, instead of metals it is frequently referred to as a thermistor. Electrical resistance of these metal oxides changes rapidly with even rather small temperature changes. Hence, thermistors are often emplyed to measure small temperature changes such as 1°C to 5 °C. The thermistor proper tends to have low purchase prices. Metal oxides, which are semiconductors, include mixtures of the following oxides nickel, manganese, copper, cobalt, tin, germanium, etc. [1]. 

Manganese-zinc ferrites (Zn Mni jcFe204) and nickel-zinc ferrites are industrially important magnetic materials. The former are used when constructing the cores of intermediate-frequency transformers, inductors, loudspeakers and other electromagnetic devices, while the latter have found application in the modern electronics industry, due primarily to their high electrical resistivity. 

The high temperature required to sinter the ceramic requires that the conductors be refractory metals. Tungsten or a mixture of molybdenum and manganese, moly-manganese, is used. These metals have an electrical resistance approximately 3 times that of copper, gold. 

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