Low-dielectric fused quartz microwave medium ceramic surface metallization method

The invention provides a low-dielectric fused quartz microwave medium ceramic surface metallization method. The method includes the steps of: S1, pretreating fused quartz ceramic, carrying out ultrasonic cleaning with acetone, ethanol and deionized water successively, and then performing drying for standby use; S2, preparing a titanium dioxide sol film on the surface of the quartz ceramic througha sol-gel-dip-coating method, and then performing heat treatment to obtain a titanium dioxide middle layer; and S3, carrying out silk-screen printing on the titanium dioxide middle layer to prepare asilver layer. The method provided by the invention introduces the titanium dioxide middle layer through a sol-gel-dip-coating method to form bismuth titanate so as to enhance the binding force of thesilver layer and the middle layer, improves the problem of poor combinability between the silver layer and the surface of the fused quartz ceramic due to too large linear expansion coefficient difference, and at the same time o