SYNTHESIS AND THERMAL STABILITY OF THE DIHYDRATES OF ZIRCONIUM AND HAFNIUM OXYNITRATES
Journal Article
·
· Doklady Akad. Nauk S.S.S.R.
OSTI ID:4070100
Thermal investigations supported by x-ray phase analysis and chemical analysis show that dihydrates of zirconium and hafnium oxynitrates are thermally unstable and disintegrate completely at 400 deg C. Hafnium decomposes in stages, followed by the formation of monohydrate and unstable oxynitrate with an oxide ratio of HfO/sub 2/: NiO/sub 5/ = 2: 1. The thermal treatment of ZrO(NO/sub 3/)/ sub 2/- 2 H/sub 2/O does not produce monohydrate and its intermediate compounds are expressed less clearly than in hafnium, (R.V.J.)
- Research Organization:
- Moscow State Univ.
- NSA Number:
- NSA-15-012920
- OSTI ID:
- 4070100
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 136
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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