| 摘要 |
The invention is related to a boride of a metal of transition group four of the periodic table of the elements, wherein at least 40 wt. % of the particles have a grain size of more than 106 mum, determined by sieve analysis according to ASTM B 214, and these particles consist of grown, monocrystalline grains. The invention also relates to a cermet, wettable powder and a surface coating which contain the boride. The invention further relates to a process to prepare the boride. The invention additionally relates to a process to prepare a cermet or a wettable powder.
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