Fine ceramics is a kind of industrial ceramics that uses highly selected high-purity chemical products as raw materials, and is used in industry. Fine ceramics include zirconia ceramics, silicon nitride ceramics, etc., which are very different from traditional ceramics. Let Pintejin ceramics introduce you to the main differences between the two.Fine ceramic parts
The main differences between fine ceramics and traditional ceramics:
- 1. In terms of raw materials, it breaks through the boundaries of traditional ceramics with clay as the main raw material. Special ceramics generally use oxides, nitrides, silicides, borides, carbides, etc. as the main raw materials. The main difference is that the various chemical composition, morphology, particle size and distribution of fine ceramic raw materials can be precisely controlled.
- 2. In terms of composition, the composition of traditional ceramics is determined by the composition of clay, so ceramics from different origins and kilns have different textures. Since the raw materials of fine ceramics are pure compounds, the ingredients are determined by artificial proportions, and the quality of their properties is determined by the purity and craftsmanship of the raw materials, not by the place of origin.
- 3. In the preparation process, advanced methods such as isostatic pressing, injection molding and vapor deposition are used in molding, so that the green body size with uniform density distribution and relatively accurate can be obtained, and the green body density is also greatly improved; the sintering method breaks through the traditional Ceramics take the furnace as the main production method, and vacuum sintering, protective atmosphere sintering, hot pressing, hot static pressing, reaction sintering and self-propagating high temperature sintering are widely used.
- 4. In terms of performance, fine ceramics have different special properties and functions, such as high strength, high hardness, corrosion resistance, electrical conductivity, insulation and special functions in magnetic, electrical, optical, acoustic, and biological engineering. , so that it has been widely used in high temperature, machinery, electronics, aerospace, medical engineering. The fundamental difference between fine ceramics and traditional ceramics is that they can be prepared from the selection of raw materials, and the subsequent manufacturing process methods can be strictly controlled, and ceramic materials with different performance requirements can be produced in practice.