Fabrication of multilayer ceramic structures by continuous filaments of different composition
AssigneeAselsan Elektronik Sanayi Ve Ticaret Anonim
InventorsHansu Birol, Mehmet Erim Inal, Akin Dalkilic, Sebnem Sayginer, Ozgur Birer, Mustafa Fatih Akbostanci
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Abstract
A method for constructing multiple ceramic layers by winding continuous ceramic filaments of different compositions to prepare multilayer RF-transparent structures is provided. In the method, different continuous ceramic filaments are braided to construct layers with specific dielectric constants and braiding count/thickness. Layers with same or different dielectric characteristics forms a sandwich design to fulfill the desired mechanical, thermal and electrical requirements.
Claims7
A method for preparing a multilayer ceramic structure, comprising:
- winding continuous ceramic fibers of different compositions to construct layers, wherein each of the layers has a specific dielectric constant, wherein
- each layer is designed to have a specific winding angle, a wound fiber thickness and space between the continuous ceramic fibers to guarantee a desired broadband RF response of an object,
- the continuous ceramic fibers are wound in an angular orientation between 15°-135° to optimize a structural integrity and a RF performance;
- forming the multilayer ceramic structure comprising multiple layers with different dielectric characteristics as a sandwich;
- applying a slurry infiltration over the multilayer ceramic structure constructed to fill inter-fiber gaps and obtain a finished structure, wherein the inter-fiber gaps are open spaces between the continuous ceramic fibers.
Dependencies are inferred from the claim text.