New ceramic structure based on the freezing of the sea
Text created by automatic translator Elia and has not been subsequently revised by translators. Elia Elhuyar
New ceramic structure based on the freezing of the sea
01/04/2006 | Elhuyar
(Photo: S. S. Deville, E. Saiz, R.K. Nalla, A.P. Tomsia)
Taking as a reference the process of freezing sea water, researchers from the American laboratory Lawrence Berkeley have made a very hard and compact ceramic material.
First, the suspended ceramic powder was placed in the water and the water was frozen by controlling the freezing speed and direction. The ceramic particles were trapped in the ice. The ice evaporated and left a porous structure, a scaffold. To finish, the pores of this scaffold were filled with an organic polymer, which can be used in some metal.
The material obtained is hard, compact and dense, in addition to the process being carried out in a controlled way, being able to vary the characteristics of this ceramic structure according to the needs.
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