Patent ID: 6740261
Filing Date: 2004-05-25
Classification: C04B,Y10T

Abstract:
A method of producing a thermistor element having a mixed sintered body Mâ€²M203.Y2O3 of a composition Mâ€²M2O3 and Y2O3 wherein Mâ€² is at least one element selected from the elements of the groups IIA and IIIA excluding La in the Periodic Table, and M2 is at least one element selected from the elements of the groups IIB, IIIB, IVA, VA, VIA, VIIA and VIII, which comprises: performing calcination to obtain Mâ€²M2O3 having an average particle diameter larger than that of said Y2O3;mixing said M1M2O3 with said Y2O3; grinding the mixture to adjust an average particle diameter of the mixture after grinding to an average particle diameter which is not more than that of said Y2O3 before mixing; molding the mixture into an article having a predetermined shape; and sintering the article.