Ultra-high temperature ceramics (UHTCs) are generally referred to the carbides, nitrides,
and borides of the transition metals, with the Group IVB compounds (Zr & Hf) and TaC as the …

Modern demands in clean energy and space exploration require materials scientists to
develop materials that perform in the most extreme conditions in our universe. Recent …

The oxidation behavior and oxidation mechanisms of monolithic ZrB 2 and particulate-ZrB 2
matrix composites were reviewed. Dispersion of SiC particles into ZrB 2 was found to be an …

The macrokinetic features of combustion in the Ta-Zr-B system were studied. Combustion is
characterized by spin mode, suggesting the limiting role of gas-phase mass transfer of …

A systematic study of the Zr-Ta-B system was performed using thermodynamic and ab initio
modeling, nanoindentation, and high-resolution TEM and XRD experiments. The phase …

ZrB 2–ZrC hybrid powders were synthesized by a novel two-step reduction on basis of ZrO
2+ B 4 C+ C→ ZrC+ ZrB 2+ CO reaction in Ar atmosphere, using ZrO 2, B 4 C, and carbon …

B 4 C has been widely used as a sintering aid for the densification of ZrB 2-based ceramics
by pressureless sintering. In this study, the effect of B 4 C on the sintering and ablation …

Two schemes for fabricating the composite powder ZrB 2–TaB 2–TaSi 2 by SHS are
discussed in this study:(1) elemental synthesis in the Zr–Ta–B and Ta–Si mixtures followed …

The effects of TaSi 2 addition on the room temperature mechanical properties of ZrB 2–
20SiC (volume fraction,%) composite were investigated. Dense ZrB 2–20SiC-xTaSi 2 (x= 3 …

The novel theoretical models for the temperature dependence of the contact mechanical
properties of the particulate composites in Hertzian contact are proposed in this paper …