Accession Number : AD0283891

Title :   BORIDE ZIRCONIUM TIPS FOR IMMERSION THERMOCOUPLES

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : SAMSONOV,G.V. ; KISLYY,P.S. ; PANASYUK,A.D.

Report Date : 12 JUL 1962

Pagination or Media Count : 1

Abstract : ZrB2 protective tips for immersion thermocouples were evaluated with respect to thermal stability, pitting, and service life. In a Martin furnace, tips are pitted by basic slags and disintegrate within 30-40 min. When immersed in molten steel for 40-45 min, the outer diameter of the tips does not s rink. Thermal stabili y tests showed that tips could be immersed in an open-hearth bath for as many as 20 times without decrepetations or surface changes.AD- * *(!(N6 ++Evaluation of zirconium boride tips for immersion thermocouples.

Descriptors :   *ALLOYS, *THERMOCOUPLES, BORIDES, BORON ALLOYS, BRASS, BRONZE, CASTINGS, HIGH TEMPERATURE, IRON ALLOYS, NITRIDES, PIPES, SILICON COMPOUNDS, SINTERING, STABILITY, STEEL, TESTS, ZIRCONIUM ALLOYS, ZIRCONIUM COMPOUNDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE