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AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsR. Ross Haghighat, Robert F. Koyar
Estimating the term…
Provided is a method for laminating PBZT/fusible sol-gel glass microcomposite film layers by applying an adhesive of fusible sol-gel glass to the bonding surfaces of such films and compressing the film layers and the so-formed adhesive layer therebetween, at sufficient temperature and pressure to laminate the film and adhesive layers together. The sol-gel glass infiltrant and adhesive may be of the same or different materials. Desirably, the bonding surfaces of such films are roughened before application of the adhesive layer therebetween. The invention also includes the laminates prepared by the above method which laminates exhibit good coherent bonding between layers, high tensile strength and good interlaminar strength between layers for fabrication into durable high-strength space-age structures.
A method for laminating ordered polymer/sol-gel glass microcomposite film layers comprising, forming at least two separate film layers, roughing an opposed surface of a pair of said film layers, applying fusible glass adhesive which fuses below 550.degree. C., to at least one of the opposed film surfaces and compressing said film layers and said adhesive layer therebetween, at sufficient temperature and pressure to laminate said film and adhesive layers together.
An ordered polymer/sol-gel glass microcomposite laminate comprising, at least two preformed and separate microcomposite layers each layer having at least one sol-gel glass infiltrant, said layers being bonded together by a fusible glass adhesive in a range of 7-25 vol. %, at least one of said layers having an abraded or roughened surface next to said adhesive and at least one of the infiltrants in said layers being of different composition than said adhesive.
Dependencies are inferred from the claim text.