CARBONIZATION OF PLASTICS AND REFRACTORY MATERIALS RESEARCH PROGRAM. VOLUME II. REFRACTORY MATERIALS RESEARCH
Abstract
Equilibrium N pressures over the ZrN single phase were measured by deter ining the rate of N effusion from a Knudsen cell. The measurements span a range from 1424 to 2360 K, a range of composition from 13.0 down to 9.79% N by weight and a range of N pressures from 2 x 10 to the -8th power to 3 x 10 to the -5th power atm. These data are presented graphically. Both IR and visible spectra were obtained from matrix isolated species effusion from a Knudsen orifice in a cell containing ThO2. The observed bands are tabulated; the analysis of the spectra are not complete. Results of efforts to measure the resonance line absorption by B atoms over pure B indicated serious interacti n of the B with all container material t us far investigated. The 6 compounds, NbB2, TiB2, ZrB2, TaN, ZrN and HfN, for which emissivities are being measured, have been characterized by chemical analysis, density measurement, crystallographic structure, electron micrographic examination and x-ray diffraction measurements. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1962
- Accession Number
- AD0274654
Entities
People
- G.m. Kibler
- T.f. Lyon
- V.j. Desantis
Organizations
- General Electric