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The most common material used for structural ceramic parts is alumina. The versatility of alumina stems from its broadly impressive material properties, ease of manufacture, wide availability, and budget-friendly cost. STC’s fully dense, 74% alumina to 99.96% alumina bodies are work-horse materials for applications that require electrical isolation, wear resistance, high temperature resistance, and good mechanical strength. The grade of alumina is selected to best fit the application.
It is used in applications from aerospace to medical, from bearings to analytical instrumentation. In addition, these materials lend themselves well to be hermetically sealed to metals through metallizing and brazing methods.
Property Charts & Safety Data Sheets | |
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Property Charts | Aluminas Comparison Chart |
Master Ceramics Property Chart | Full Color Printer Friendly - Color Printer Friendly - B&W |
Safety Data Sheets | Alumina AL-33R Bisque Alumina Ceramic Dense Alumina Ceramic Spray Dried Alumina Powder (RTP) Unfired Alumina Powder |
Prime Features | |
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Good Mechanical Strength | High Temperature Resistance |
High Wear Resistance | Good Chemical Resistance |
Good Dielectric Strength | Suitable for Ceramic-to-Metal Assemblies |
High Hardness |
Typical Applications | |
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Igniters | Spray Nozzles |
Structural Ceramics Parts | Ceramic Bearings |
Wear Guides | Electrical Insulators |
Bushings | Feed Thru Insulators |
Pump Components |
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Note: The information in this data sheet is for design guidance only. STC does not warrant this data as absolute values. Forming methods and specific geometry could affect properties. Slight adjustments can be made to some of the properties to accommodate specific customer requirements. Most of the dense materials in the table are resistant to mechanical erosion and chemical attack. STC has performed ASTM testing qualification for certain compositions, in accordance with ASTM D2442. Please consult our technical staff for appropriate material and specific test results. |