Interaction of low-expansion NZP ceramics with Na2SO4 at 1000 C
Description
The interaction between several low-expansion NZP materials and Na2SO4 at 1,000 C in pure O2 was studied. Ba1.25Zr4P5.5Si0.5O24 experienced extensive cracking and delamination upon reaction with Na2SO4. On the other hand, Ca0.5Sr0.5Zr4P6O24 remained intact in terms of visual appearance and had no significant weight loss or gain. However, the ion exchange between Na+ ions and Ca+2 ions was observed to be sufficiently rapid to allow the penetration of the Na+ ions into the test specimens in 100 h. The segregation of Ca to the specimen surface was observed due to the ion exchange. Ca0.6Mg0.4Zr4P6O24 was also tested, but its stability could not be properly assessed because the as-received specimens contained a significant amount of MgZr4P6O24 as an impurity phase
Additional details
Additional titles
- Augmented title (English)
- Sodium-Zirconium-Phosphates
Publishing Information
- Journal Title
- Journal of the American Ceramic Society
- Journal Volume
- 79
- Journal Issue
- 2
- Journal Page Range
- p. 484-486.
- ISSN
- 0002-7820
- CODEN
- JACTAW
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27043757
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; CALCIUM OXIDES; CHEMICAL REACTIONS; CORROSION RESISTANCE; CRACKS; MAGNESIUM OXIDES; OXYGEN; PHOSPHORUS OXIDES; SAMPLE PREPARATION; SILICON OXIDES; SLIP CASTING; SODIUM SULFATES; STRONTIUM OXIDES; ZIRCONIUM OXIDES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CASTING; CHALCOGENIDES; ELEMENTS; FABRICATION; MAGNESIUM COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; SILICON COMPOUNDS; SODIUM COMPOUNDS; STRONTIUM COMPOUNDS; SULFATES; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS