Dental Equipment 62kg 2000W 220V Zirconia Sintering Furnace

Sintering

Ceramic sintering is the process where heat, and sometimes pressure, transforms a ceramic material, reducing porosity and increasing particle density. Other properties, such as strength and translucency, are often enhanced. Pre-sintered zirconia starts out in a monoclinic crystalline structure, with a chalk-like appearance and feel that is easy to mill or contour with a slow-speed handpiece. At around 1,100°C to 1,200°C, zirconia transforms from the monoclinic structure to a polytetragonal crystalline state, increasing particle density, strength, and translucency. The chalk-like appearance and texture is replaced with an extremely hard, dense, and incredibly strong ceramic material that even a high-speed handpiece with diamond burs would struggle to cut. Sintering also causes zirconia to shrink approximately 25%.

While zirconia transforms from one structure to another at around 1,100°C to 1,200°C, most sintering furnaces fire at temperatures closer to 1,500°C. Final sintering temperatures can have a profound effect on the zirconia. Typically, the higher the temperature, the denser the zirconia b comes, usually close to 99% of the theoretical maximum density.

Prior to being placed in the sintering furnace, green-state zirconia is usually positioned in a crucible filled with zirconia beads. The beads allow for movement of the zirconia as it shrinks

Yucera, located in Shenzhen, China, is one of the top three manufacturers of high quality total solutions for dental applications in China. Our company manufactures zirconium blocks, lithium disilicate and CAD CAM. And we also supply 3D printers, intraoral scanners, laboratory scanners, sintering furnaces, porcelain ovens, burs and other materials. We sell our products in over 100 countries and have dozens of agents.

More information about the Yucera is available at yucera.com.

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