
To obtain an alumina ceramic material with high wear resistance, it is not only necessary to consider its high density, high flexural strength and compressive strength, but also to improve its hardness and fracture toughness, which are very different from alumina ceramics. The microstructure (closed porosity, grain size, glass phase distribution, etc.) and its wear mechanism are closely related.1. Influence of raw material powder The most important raw material of alumina wear-resistant ceramics is high-purity alumina powder. Its properties and content have a great influence on alumina wear-resistant ceramics. Ceramic powder will inevitably introduce impurities during the...
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There are many related products made of ceramics, some of which are for decoration and some for industrial use. The performance of decorative ceramics is basically relatively simple, but the industrial use is different. In order to meet certain usage requirements, ceramics must have some special effects. Ion-conducting ceramics are a kind of industrial ceramics. Are there any defects in this ceramic material?Ion-conducting ceramics are ceramic products with directional migration of inteal ions, but exteal force is required, and the existence of defects provides high-energy ions and more vacancies that can be occupied by migrating ions. Defects in this regard mainly include vacancy-type defec...
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