Comparison of Content, Properties, and Application Fields between 95 Alumina Ceramics and 99 Alumina Ceramics

---

Alumina content
-95% alumina ceramic: The alumina content is about 95%, and the remaining 5% is mainly composed of additives such as titanium dioxide (TiO ₂), calcium oxide (CaO), and silicon oxide (SiO ₂).
-99% alumina ceramic: The purity of alumina is as high as 99%, with extremely low impurity content, containing only about 1% of additives such as yttrium oxide (Y ₂ O3).

application area
-95 alumina ceramic
-Electronics industry: used for insulating substrates, packaging materials, etc.
-Mechanical field: Manufacturing wear-resistant bearings, seals, cutting tools, etc.
-Chemical equipment: used for corrosion-resistant pipelines, valves, etc.
-Textile machinery: manufacturing yarn guides.
-Architectural ceramics: making wear-resistant floor tiles.

-99 alumina ceramic
-Aerospace field: used for high-temperature crucibles, rocket nozzles, etc.
-Precision medicine: used as artificial joints, dental restorative materials, etc.
-Semiconductor manufacturing: used for integrated circuit substrates, vacuum seals, etc.
-Chemical reactor liner: performs well in highly corrosive environments.

Cost and Processing
-95 alumina ceramic
-Cost: The raw material cost is relatively low, the molding and sintering processes are relatively simple, and the overall manufacturing cost is low.
-Processing difficulty: It is easy for the edges to collapse during the forming process, and strict control of process parameters is required.

-99 alumina ceramic
-Cost: High purity raw materials have high prices, complex sintering processes, and high manufacturing costs.
-Processing difficulty: Specialized equipment such as ceramic carving machines are required for precision processing, but the yield rate is relatively high.

95 alumina ceramics and 99 alumina ceramics each have their own advantages. 95 alumina ceramics are widely used in ordinary industrial scenarios due to their cost-effectiveness; And 99 alumina ceramics play an important role in high-end technology fields due to their excellent performance. The choice of material should be comprehensively considered based on specific application requirements, environmental conditions, and economic costs.