Experimental design applied to the chemical durability of sol-gel-derived zirconias

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1997.tb03005.x· OSTI ID:512076

Pavlik, Jr, R S; Klein, L C; McCauley, R A ^[1]

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1. Rutgers-State Univ. of New Jersey, Piscataway, NJ (United States). Ceramics Dept.

A statistical design was used to investigate the effects of various processing conditions on the chemical durability of sol-gel-derived zirconias. Eight processing variables were investigated: water:alkoxide molar ratio, mixing temperature during hydrolysis, firing temperature, heating rate, soak at firing temperature, and firing atmosphere. Processing variables were set at high and low limits in a main-0effects statistical design. The design identified four critical processing variables (listed in descending order of significance): firing temperature, firing atmosphere, water:alkoxide ratio, and nitric acid:alkoxide ratio. Sol-gel-derived zirconias were characterized by differential scanning calorimetry, X-ray diffractometry, and mercury intrusion. Suggestions are offered that may help to explain why these particular processing conditions influenced the chemical durability of sol-gel-derived zirconias.

• Sponsoring Organization: USDOE
• OSTI ID: 512076
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 6 Vol. 80; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CORROSION RESISTANCE
CORROSIVE EFFECTS
MEMBRANES
PARAMETRIC ANALYSIS
SODIUM HYDROXIDES
SOL-GEL PROCESS
ZIRCONIUM OXIDES