Lattice constants of nonstoichiometric ThC at high temperature

Journal Article · Fri Jun 01 04:00:00 EDT 1973 · Tohoku Daigaku Senko Seiren Kenkyusho Iho, v. 29, no. 1, pp. 79-88

OSTI ID:4309647

Natsume, H; Matsumoto, M; Honma, T

The lattice constants of nonstoichiometric ThC (C/Th = 1.2, 1.1, directly using high temperature x-ray diffractometer from room temperature to 1100 deg C. It was found that the homogeneity range of ThC phase is C/Th = 0.65 to 0.68 and up to 1.0 at room temperature, whereas the range does not change at temperature up to 1050 deg C. The thermal expansion coefficients of ThC decrease with the increase of C/Th in the phase of ThC. At C/Th is above 1.0 and below 0.65 to 0.66, the thermal expansion coefficients are constant. respectively. The thermal expansion coefficients of C/Th = 0.76 vary in the temperature range 700 to 800 deg C. These values are 7.1 x 10/sup -6//deg and 8.5 x 10/sup -6//deg in the low and high temperature range, respectively. (auth)

• Research Organization: Tohoku Univ., Sendai
• NSA Number: NSA-29-030029
• OSTI ID: 4309647
• Journal Information: Tohoku Daigaku Senko Seiren Kenkyusho Iho, v. 29, no. 1, pp. 79-88, Journal Name: Tohoku Daigaku Senko Seiren Kenkyusho Iho, v. 29, no. 1, pp. 79-88; ISSN TDSSA
• Country of Publication: Japan
• Language: Japanese

Related Subjects

*THORIUM CARBIDES-- LATTICE PARAMETERS
CHEMICAL COMPOSITION
HIGH TEMPERATURE
LOW TEMPERATURE
MEDIUM TEMPERATURE
N50130* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Properties
Structure & Phase Studies
STOICHIOMETRY
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION