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Comparison of Magnesium oxide stabilized zirconia and Yttrium stabilized zirconia ceramics


Comparison of Magnesium oxide stabilized zirconia and Yttrium stabilized zirconia ceramics

Magnesium oxide stabilized zirconia ceramics, zirconia toughened ceramics prepared with magnesium oxide as stabilizer can be prepared according to the different content of magnesium oxide stabilizer and the difference in preparation technology, cubic zirconia and metastable tetragonal zirconia ceramics can be prepared by controlling the growth of tetragonal crystal nuclei, and the magnesium oxide partially stabilized zirconia ceramics with the best bending strength and fracture toughness can be obtained. Its application and yttrium oxide stabilized zirconia ceramics are roughly the same and more because of its unique thermal shock resistance is widely used in metallurgical steel and petrochemical industry can also be used to manufacture machinery textile industry of special ceramic cutting tools standard measuring tools mechanical seals stamping die and various wear parts

Yttrium stabilized zirconia ceramics, abbreviated Y-TZP zirconia toughening ceramics prepared under yttrium oxide (Y2O3) as a stabilizer Usually, when the mole fraction of yttrium oxide is 2% to 3%, it is called yttrium stabilized tetragonal zirconia polycrystal;When the mole fraction of yttrium oxide is above 8%, the cubic phase zirconia polycrystal with yttrium oxide stability has high strength, good fracture toughness, high hardness, high elastic modulus, linear expansion coefficient similar to metal, good wear resistance, non-magnetic, acid and alkali medium corrosion resistance, mainly used in petroleum mining communication equipment manufacturing chemical fiber measuring tools and watches and other industries

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