EFFECT OF FERROUS OXIDE ON ZIRCON SAND AT 1200 C

Journal Article · Wed Nov 30 23:00:00 EST 1960 · American Ceramic Society Bulletin (U.S.)

OSTI ID:4110267

Wells, R G; Van Vlack, L H; Lalonde, R

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.), Journal Name: American Ceramic Society Bulletin (U.S.) Vol. Vol: 39; ISSN ACSBA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

EUTECTICS
FAYALITE
HIGH TEMPERATURE
IRON OXIDES
IRON SILICATES
LIQUIDS
METALS, CERAMICS, AND OTHER MATERIALS
MINERALS
PHASE DIAGRAMS
SAND
SILICON OXIDES
TRIDYMITE
WUESTITE
ZIRCONIUM OXIDES
ZIRCONIUM SILICATES