Fabrication of colored CaCO3 compacts by hydrothermal hot-pressing method
- 1 May 1998
- journal article
- Published by Taylor & Francis in Materials Research Innovations
- Vol. 2 (1) , 45-48
- https://doi.org/10.1007/s100190050060
Abstract
Hydrothermal hot-pressing (HHP) technique was used to solidify shell powder dyed. Shell powder was mixed with dye with a ratio of 0.25 wt%, and was treated by HHP at 130 to 170° C, 45 MPa for 2 hours. It is showed that the powder can be dyed well by some basic dyes at 60° C, and can maintain the color of dyes after HHP process. The resulting compactness with a beautiful color appearance has high hardness and apparent density. Possible mechanisms for solidification and coloration were also discussed.Keywords
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