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We CAD designed 20 small zirconia plates using Solidworks software and produced STL files using proprietary CAM software to mill identical parts with evenly finished surfaces. They were 40mm long, 10mm wide, and 2mm thick. A total of 4 groups were prepared. Group A was sintered for 8 hours using a conventional coil type furnace (at 1,500 C). Group B and C were sintered using the DuoTron furnace for 8 hours (1,500 C) and 2 hours (1,500 C). Each of the sintered blocks were measured utilizing a comparative 3 point bending strength (MPa) test. Each zirconia plate is from the same disc. For comparative analysis, the conventional oven results were set to 100 and the DuoTron results were converted to their strength relative to the conventional oven. It is interesting to note that even when tested at a lower (non-recommended)
heat level, the zirconia sintered on the Fast DuoTron cycle is stronger than zirconia from the conventional oven. |
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 Test done by Nelson Laboratories
www.nelsonlabs.com
Offering more than 200 scientific tests
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