Thread: Silicification
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Old 05-12-2008, 06:53 PM
Arrow Arrow is offline
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Join Date: Jun 2005
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Re: Silicification

The older experiment delt with a Wood-Ceramic composite surface. Super strong coating for wood without changing the appearance. No acid bath for this process.


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Popular Science, October 1992. Advanced Ceramic Labs at the University of Washington in Seattle (USA).

Researchers have also made wood-ceramic composites that are 20120% harder than regular wood, but still look like wood. Surprisingly simple, the process involves soaking wood in a solution containing silicon and aluminium compounds. The solution fills the pores in the wood, which is then oven-cured at 44C (112F). According to the labs research director, Daniel Dobbs, such experiments have impregnated the wood to depths of about 5 millimetres (0.2 inches). Furthermore, deeper penetration under pressure and curing at higher temperature have yielded a rock-hard wood-ceramic composite that has approached petrified wood.
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