Surface Properties of Transition Metal Carbides.
Abstract
Single crystal rods of ZrC and HfC were prepared by an arc float zone refinement technique. Single crystal specimens of compositions ZrC(0.92 + or - 0.04), ZrC(0.86 + or - 0.04) and ZrC(0.82 + or - 0.04) were fabricated for conductivity measurements and for surface studies. The electrical conductivities of ZrC(x) specimens have been measured at room temperature by a four-point probe method. The variation of resistivity with composition is discussed. Experiments were performed to study boron diffusion into ZrC specimens. Diffusion specimens and controls were analyzed by cold neutron depth profiling at the NIST cold neutron facility in Gaithersburg, MD, and by Auger depth profiling in our laboratory. jg p5
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1995
- Accession Number
- ADA304287
Entities
People
- Paul R. Davis