EFFECT OF FERROUS OXIDE ON ZIRCON SAND AT 1200 C
At 1200 deg C there are three compatibility triangles in the system FeO- ZrO/sub 2/-- SiO/sub 2/: fayalite, tridymite, and zircon; fayalite, zircon, and zirconia; and fayalite, zirconia, and wustite. The joins FeO-ZrO/sub 2/ and Fe/ sub 2/SiO/sub 4/-ZrO/sub 2/ are binary systems. The former has a eutectic near 1320 deg C, and the latter has a eutectic near 1180 deg C. Fe/sub 2/SiO/sub 4/- ZrSiO/sub 4/is not a binary system at all temperatures, for zircon dissociates into zirconia and silica above 1500 deg C. At l2OO deg C a region of liquid is found surrounding the fayalite composition and extending into each of the three compatibility regions. Fer rous oxide at 1200 deg C causes a dissociation of zircon sand and the formation of an iron-rich silicate liquid. The amount of liquid formed is similar to that formed by ferrous oxide in silica sand at this temperature. (auth)
- Research Organization:
- Univ. of Michigan, Ann Arbor
- NSA Number:
- NSA-15-007797
- OSTI ID:
- 4110267
- Journal Information:
- American Ceramic Society Bulletin (U.S.), Vol. Vol: 39; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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