Research on low density thermal insulation materials for use above 3000 deg f sixth quarterly status report, 1 jul.-30 sep. 1963
A quarterly contractor status report by K. H. Styhr, issued in 1963 for NASA, covering tests of low-density ceramic insulation for service above 3000°F. Hatched sectional drawings of a water-cooled furnace label graphite heaters, sight tubes and zirconia layers, while high-contrast photomicrographs reduce porous ceramic to white grain clusters on black — useful for technical line schematics and grainy abstract texture.
