PYROLYSIS OF FIVE SALTS OF YTTRIUM, LANTHANUM, AND CERIUM
Technical Report
·
OSTI ID:4794961
BS>Ammonium, sulfate, carbonate, nitrate, oxalate, and sulfate salts of yttrium, lanthanum, and cerium were analyzed thermogravimetrically. The temperature ranged from room ing at a rate of 2.5 deg C per minute, and some of the salts were subjected to additional rates of 5 or 10 deg C per minute. The decomposition sequences were identified, and the temperatures of formation of intermediate compounds and of the oxides were determined. The minimum oxide formation temperature of a given lanthanum salt exceeds that for the similar salt of yttrium, and both exceed that for the same salt of cerium except for one cerium carbonate. Variation of the heating rate indicates a thermal lag in the materials and produces the shift of formation temperatures to higher values and loss of resolution in the weight-loss distribution as the heating rate increases. (auth)
- Research Organization:
- Bureau of Mines. College Park Metallurgy Research Center, Md.
- NSA Number:
- NSA-16-026954
- OSTI ID:
- 4794961
- Report Number(s):
- BM-RI-6029
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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