HIGH TEMPERATURE CERAMIC STRUCTURES

Effort as directed towards improving the green and fired properties of slip-cast fused silica, investigating annealing procedures for flame glazed lip-cast fus silic , an designing and fabrica ing device o totally arc-plasma flame glaze the outer surfaces of three radome shapes. The organo-silicate impregnation studies er co i u usi g simple exposure i pregnating technique, then gelling with concentrated sulfuric acid to hold the organo-silicate in place. Pressure casting studies continued and expanded so that the data could be s tistically analyzed to determine significant differences in the properties of test bars of slip-cast fused silica due to pressure, firing procedure, a vibration. T e design and construction of a device to rcplas flame glaze the complete outer surfaces of full scale fused silica radomes was initiated. (Author)