High-purity super-tough zirconia composite ceramic gear and preparation method thereof
A composite ceramic and zirconia technology, applied in the field of high-purity super-tough zirconia composite ceramic gears and their preparation, can solve problems such as inability to meet requirements, and achieve the effects of small grain size, small wear amount, and high density
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[0187] The invention relates to a high-purity super-tough zirconia composite ceramic gear and a preparation method thereof, and the specific implementation steps are as follows.
[0188] (1) The molar content of yttrium oxide is 3%, the weight percentage of hafnium oxide is 1%, the weight percentage of aluminum oxide is 5%, the weight percentage of silicon oxide is 3%, the weight percentage of cerium oxide is 1%, and the weight percentage of europium oxide is 0.5% zirconia composite powder, the main element purity of zirconia composite powder is 99.999%, the primary particle size of zirconia composite powder is 4.2 nanometers, the composite powder is mixed with 99.99% polyvinyl alcohol by weight percentage 2%, 99.99% 3% by weight of octadecanoic acid, 3% by weight of 99.99% polyethylene wax, and 5% by weight of 99.99% paraffin wax were mixed at 165 degrees for 14 hours.
[0189] (2) Put the compounded material obtained in step (1) into an extrusion granulator to granulate part...
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