Add time:08/02/2019         Source:sciencedirect.com

Silicon compounds in raw materials are the main reason for the low HF/HCl acid resistance of alumina ceramics. Y2O3 can improve the acid resistance of alumina ceramics. This work aimed to reveal the mechanisms of the effects of Y2O3 on the form of Si and the durability of the ceramic. An experiment on a high-temperature reaction between Y3Al5O12 and a polycrystalline alumina ceramic was designed. The effect of corrosion time on the acid solubility of the alumina ceramic was investigated. The results show that Si can dissolve in Y3Al5O12 to generate solid solutions, impeding the generation of Si-containing compounds with bad acid resistance, and decreasing the content of amorphous Si. The acid solubility of the ceramic was only 0.95%, even when the corrosion time was extended to 60 times the industry standard. This revelation of the acid resistance mechanisms can provide a new idea for designing corrosion-resistant ceramics.

We also recommend Trading Suppliers and Manufacturers of (S)-3-MORPHOLINECARBOXYLIC ACID HCL (cas 106825-79-0). Pls Click Website Link as below: cas 106825-79-0 suppliers