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in creator/contributor: "Hoover, R.C."

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Functionally graded boron carbide

Lightweight body armor is important for the protection of US soldiers in the field. Here, fabrication techniques were developed for producing graded porosity B{sub 4}C, and for producing aluminum-B{sub 4}C and epoxy-B{sub 4}C functionally graded materials. The key fabrication aspect was obtaining the graded porosity B{sub 4}C. The feasibility of producing graded porosity B{sub 4}C using a grading of carbon densification aid produced from a gradient of furfuryl alcohol carbon precursor was demon… more

Date: December 31, 1998

Creator: Petrovic, J. J.; McClellan, K. J.; Kise, C. D.; Hoover, R. C. & Scarborough, W. K.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Synthesis and properties of erbium oxide single crystals

Erbium oxide (Er{sub 2}O{sub 3}, erbia) is a highly stable cubic rare earth oxide with a high melting point of 2,430 C. Because of this, it may have potential applications where high temperature stability and corrosion resistance are required. However, relatively little is known about the properties of this oxide ceramic. The authors have employed a xenon optical floating zone unit with a temperature capability of 3,000 C to grow high quality single crystals of erbia. The conditions for single … more

Date: April 1, 1999

Creator: Petrovic, J. J.; Romero, R. S.; Mendoza, D.; Kukla, A. M.; Hoover, R. C. & McClellan, K. J.

Item Type: Report