Microporous ceramics refer to ceramic bodies that contain a large number of open or closed tiny pores inside or on the surface of the ceramic, and their pore sizes are generally micron or submicron.
Advanced ceramics are different from traditional ceramics in terms of raw materials and processes. Usually, high-purity and ultra-fine raw materials are used to make ceramic materials with excellent performance through composition and structure design, precise stoichiometry and new preparation techniques. Both of these ceramics are widely used, so what are the differences between microporous ceramics and advanced ceramics? Mingrui Ceramics will explain them one by one.
microporous ceramics and advanced ceramics
1. Different materials
Microporous ceramics are a kind of silicate products. The raw materials used are barren clay, waste slag, power plant fly ash, glass factory waste, etc. The main materials of advanced ceramics are
silicon nitride (Si3N4), silicon carbide (SiC),
Zirconium Oxide (ZrO2),
Aluminum Oxide (A1203), etc.
2. Different structure
Microporous ceramics refer to ceramic bodies that contain a large number of open or closed tiny pores inside or on the surface of the ceramic, and their pore sizes are generally micron or submicron. The so-called micropores are basically invisible to the naked eye. Microporous ceramics have good adsorption and permeability. Microporous ceramics are not only a very effective filter material, but also can be regenerated, so many industries will give priority to microporous ceramics application in water treatment.
The use of microporous ceramics can not only greatly improve water treatment efficiency, but also reduce environmental pollution. What's more, it can reduce the cost of water treatment to a certain extent. Microporous ceramics also have great characteristics, that is, the raw materials used to manufacture it are some waste slag or glass factory waste, which can be said to be the utilization of waste, which can not only better protect the environment, but also play a very important role in saving resources. role.
Advanced ceramics are materials with high resistance to crack propagation. He has a high coefficient of thermal expansion, so it is often used to make metallized ceramics.
3. Different performance
Microporous ceramics are a kind of functional structural ceramics. Microporous ceramics have adsorption, gas permeability, corrosion resistance, environmental compatibility, biocompatibility, etc.
Advanced ceramics have high density, high hardness, and zero water absorption. It is a ceramic material with extremely high density. It combines the outstanding properties of low thermal conductivity and high strength.
4. Different applications
Microporous ceramics are widely used in the filtration of various liquids, gases, and immobilized biological enzyme carriers and bio-adaptive carriers, especially in environmental engineering, such as industrial water, domestic water treatment, sewage purification etc. Microporous ceramics can be used in oil extraction operations in oil fields, filtration of acid-base solutions in chemical plants, filtration of various beverages and beer, fermentation and sugar industry, which can greatly improve the quality of products in these industries.
Advanced ceramics can be used as a mold for wire forming, can be used as an auxiliary material in the welding process, and it is often a good choice for insulating rings in high-temperature service environments. Common applications include laser accessories, mechanical parts, fiber optic ceramic rings and sleeves, semiconductor top teeth, and more.
