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Yttria and Dysprosia as High-temperature Thermistor Materials.

Authors
Hyde-GR; Maust-EE Jr.; Furlong-LR
Source
NTIS: PB 196 612 :8 pages
Link
NIOSHTIC No.
10009209
Abstract
Sintered yttria and sintered dysprosia can be used to make single- component thermistors having typical thermistor geometries and operable in the temperature range 500 deg. to 1,200 deg. C. However, at these temperatures, instability of platinum electrodes can contribute a slight aging effect if the thermistor is kept near 1,200 deg. C for long periods. Typical characteristics at 500 deg. C for an yttria disk thermistor 12 mm in diameter and 2 mm thick are a resistance of 12.4 Megohms and a temperature coefficient of resistance of -3.8 percent per degree c. Typical characteristics at 500 deg. C for a dysprosia thermistor of the same dimensions are a resistance of 1.84 Kohms and a temperature coefficient of resistance of -1.6 percent per degree c.
Publication Date
19700101
Document Type
IH; Report of Investigations
Fiscal Year
1970
NTIS Accession No.
PB-196612
NTIS Price
A02
Identifying No.
RI 7458
NIOSH Division
CPRC;
Source Name
NTIS: PB 196 612
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