Differences |
Special Ceramic Materials |
Traditional Ceramic Materials |
Raw Materials |
Synthetic "selected highly quality raw materials" (oxides and non-oxides). |
Natural minerals, such as clay, quartz, feldspar, etc. |
Shaping process |
Pressing, hot pressure casting, injection, film rolling, isostatic pressing. |
Grouting, mostly plastic molding |
Firing process
|
Advanced methods such as vacuum sintering, protective atmosphere sintering, hot pressing and hot isostatic pressing are widely used in the temperature range of 1200 ~ 2200 ℃. Mainly fueled by electricity, oil and gas. |
Generally below 1350 ℃, Mainly fueled by coal, oil and gas. |
Properties |
Emphasis on inner quality, it has excellent physical and chemical properties, high-strength, high-hardness, wear resistance, corrosion resistance, high temperature resistance, thermal shock resistance, and excellent performance in heat, light, sound, electricity, magnetism, chemistry, biology, etc. |
Emphasis on outward appearance |
Additional processing |
Generally, additional processing (cutting, drilling, grinding and polishing) is required. |
Generally, no additional processing required. |
Purpose |
Has wide range of valuable uses in petroleum, chemical, steel, electronics, textile and automobile industries. Also used in advanced technology industries, such as aerospace, nuclear and military. |
Cooking utensils, tableware and handicrafts. |