Silicate Ceramics were the first technical ceramics developed to support early electrical technologies, including Magnesium Silicates (Steatite and Cordierite) and Mullite. At STC we import Grade A Lava (Hydrous Aluminum Silicate), a naturally occurring silicate material that is shares many of the performance advantages of the engineered silicates.
In general, Silicates are valuable for their good dielectric properties, resistance to thermal shock and high temperature performance. In recent years, these materials are seeing new applications based on their low RF loss factors and low thermal expansion.
These materials are a low cost alternative based on their simple natural ingredients and relatively simple processing steps.
|Property Charts & Safety Data Sheets|
|Master Ceramics Property Chart||Full Color|
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Printer Friendly - B&W
|Safety Data Sheets||Cordierite Ceramic (Refractory Grade)|
Unfired Cordierite Lava (Grade "A") Ceramic
Lava (Grade "A") Powder
Lava (Grade "S") Ceramic
Unfired Lava (Grade "A")
Unfired Lava (Grade "S")
Dense Mullite Ceramic
Dense Steatite Ceramic
|Lower Cost||Good electrical insulation|
|Low Coefficient of Thermal Expansion||High Thermal Shock Resistance|
|Structural ceramic parts||Aerospace|
|Materials Property Chart|
|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.|