Florida State University Research Foundation, Inc.

Scott Gundlach

Mark D Bird

William D Markiewicz

Jun Lu

Scott Bole

Hom Kandel

Adam Voran

Jack Toth

Youri Viouchkov

Electrically insulating AlO&#x2014;SiOthin coatings have been deposited on long-length 316 stainless steel (SS) tape using a reel-to-reel continuous sol-gel dip coating process for co-winding insulation into YBCO pancake coils, a high temperature superconductor magnet technology. Coatings with a thickness of &#x2dc;2 &#x3bc;m are achieved after just one dip with a tape withdrawal speed of &#x2dc;16 mm/s (1 m/min) and a calcination at 700&#xb0; C. The coatings were measured to have a room-temperature breakdown voltage of about 100 V, corresponding to a dc dielectric strength of about 50 MV/m. Consequently, this process has low cost and high throughput and produces a thin electrical insulation with excellent thermal, dielectric, and mechanical properties. A new technique has been developed in the coating process to mitigate coating buildup near the edges of the tape.

Thin insulation coatings by sol-gel method

An electromagnet having at least one access port oriented perpendicularly to the electromagnet's central axis. The magnet has a conventional helical winding along its central axis. However, at some point along the length of the axis, the pitch of the helical winding is greatly increased in order to create a region with a comparatively low turn density. One or more ports are provided in this region. These ports provide access from the magnet's central bore to the magnet's exterior. A sample can be placed in the central bore near the ports. A beam traveling down the central bore, or through one of the radial ports, will strike the sample and be scattered in all directions. The ports allow access for instrumentation which is used to evaluate the scattered beam.

Split Florida-helix magnet

Growing community of inventors

Tallahassee, FL, United States of America

Scott Gundlach