Stabilized zirconium oxide for observation window
OwnerClaude A. Degueldreinventor
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Abstract
In order to produce an observation window (7) in reaction vessels, autoclaves, boilers, nuclear reactors and the like, a cubically stabilized zirconium oxide monocrystal can be used. Preferably, calcium, magnesium, yttrium or another transparent element of the heavy lanthanoids is used to stabilize zirconium oxide. Due to the excellent transparency of such observation windows (7) produced by means of a cubically stabilized zirconium oxide moncrystal, they are especially suitable for monitoring processes in situ in closed vessels such as the above-mentioned reaction vessels and the like, the processes being monitored either optically by means of photographic appliances or video appliances (1), or by means of spectroscopic methods.
Claims12
Use of stabilized zirconium oxide monocrystal for observation windows in reaction vessels, autoclaves, boilers, nuclear reactors such as boiling-water reactors, and the like.
Observation window in reaction vessels, autoclaves, boilers, nuclear reactors, particularly boiling-water or pressurized-water reactors, and the like, characterized in that the window consists at least largely of zirconium oxide or zirconia, particularly of stabilized zirconium oxide monocrystal.
Dependencies are inferred from the claim text.