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8 Φεβ 2021 · Edit to add this: Worth knowing: Properties of Zirconium Oxide (ZrO2) High thermal expansion (α=11 x 10-6/K, similar to some types of steel) Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK) Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
A single block of “zirconium oxide” (ZrO2) ceramic, also referred to as “zirconia” or “zirconium dioxide,” is heated to scorching hot 1400 degrees Celsius (or 2552 degrees Fahrenheit), hardening it and reducing it to the right size to transform it into a watch case.
22 Νοε 2013 · With the distinction of being the first Speedmaster with a ceramic case, the Omega Speedmaster Dark Side of the Moon is actually all - case, bezel, pushers, crown, dial and even the buckle - ceramic. The particular type of ceramic used for the Dark Side of the Moon is zirconium dioxide (ZrO2).
15 Ιαν 2018 · Its excellent thermal insulation makes the ZrO2 material, which touches your wrist, feel rather comfortable. This advantage might not be very important as often Zirconium Dioxide isn’t used for the case back.
9 Μαΐ 2013 · Yes, even the buckle is ceramic. What's more is that Omega Caliber 9300 is mounted directly into the mono-block ceramic case, meaning that essentially there isn't a caseback at all, simply a slightly domed sapphire crystal that shows off the impressive movement.
27 Μαΐ 2019 · Omega now introduces a white ZrO2 polished ceramic dial on the PO 600m, as it did with the SM300, here.
31 Δεκ 2013 · PDF | The insulation performance of the ZrO2 ceramic thermal barrier coatings prepared by the oxyacetylene flame spraying process is tested by four... | Find, read and cite all the research...
