In typical joints there is a mismatch in modulus between the substrates and adhesive. This results in a high stress area or stress singularity when the samples are subjected to stress, which in turn reduces the performance of the joint. By making a modulus gradient at the interface, the order of the singularity can be reduced, and therefore may improve the performance of the bond. This research uses ceramers with differing amounts of polymer to vary the modulus in a phosphoric acid anodized aluminum butt joint. Tetraethoxysilane and triethoxysilane terminated polydimethylsiloxane are used in the sol-gel reaction. Triethoxysilane terminated polydimethylsiloxane was synthesized using a hydrosilation reaction. The method for assembling the gradient layers has been defined and demonstrated. Air plasma treatment was used to improve adhesion between ceramer layers. Scanning Electron Microscopy micrographs discovered stress cracks in the pure tetraethoxysilane layer. Future work will omit this layer. After assembling the gradient layers, failure strength will be measured and correlated to the gradient in the joint. Scanning Electron Microscopy, X-Ray Photoelectron Spectroscopy and Atomic Force Microscopy will be used to characterize the gradient and the failure mode. The support from the National Science Foundation Science and Technology Center on High Performance Polymeric Adhesives and Composites was greatly appreciated.