Exploring hardness enhancement in superhard tungsten tetraboride-based solid solutions using radial X-ray diffraction
- UCLA, Los Angeles, CA (United States)
- UCLA, Los Angeles, CA (United States); Virginia Commonwealth Univ., Richmond, VA (United States)
In this paper, we explore the hardening mechanisms in WB4-based solid solutions upon addition of Ta, Mn, and Cr using in situ radial X-ray diffraction techniques under nonhydrostatic pressure. By examining the lattice-supported differential strain, we provide insights into the mechanism for hardness increase in binary solid solutions at low dopant concentrations. Speculations on the combined effects of electronic structure and atomic size in ternary WB4 solid solutions containing Ta with Mn or Cr are also included to understand the extremely high hardness of these materials.
- Research Organization:
- Carnegie Institution of Washington, Washington, D.C. (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0002006; AC02-05CH11231; NA-00006
- OSTI ID:
- 1335839
- Alternate ID(s):
- OSTI ID: 1226779
- Journal Information:
- Applied Physics Letters, Vol. 107, Issue 4; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 16 works
Citation information provided by
Web of Science
Web of Science
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