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Highly Durable Ceramic Thermometer for Molten Metal
Author(s) -
Kita Hideki
Publication year - 2006
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2006.02058.x
Subject(s) - materials science , durability , thermal shock , molten metal , boron nitride , ceramic , metallurgy , corrosion , thermocouple , tube (container) , silicon nitride , composite material , composite number , thermometer , cast iron , silicon , physics , quantum mechanics
It was shown that a silicon nitride (SN)/boron nitride (BN) composite laminate provides excellent thermal shock resistance, and to improve the corrosion resistance of the SN pipe against molten metals, the Mo/ZrB 2 film was effective for molten cast iron. The authors have developed a thermocouple that yields high durability and good response using an SN/BN composite laminate as an external sleeve and film‐coated SN protection tube. According to the results of repeated temperature measurement tests for molten metals, it was demonstrated that the thermometer thus designed had high durability, e.g., 360 times measurement to life was achieved for molten cast iron.