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High density crystalline boron prepared by hot isostatic pressing in refractory metal containers
High density crystalline boron prepared by hot isostatic pressing in refractory metal containers
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机译:通过热等静压在耐火金属容器中制备的高密度结晶硼
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摘要
Boron powder is hot isostatically pressed in a refractory metal container to produce a solid boron monolith with a bulk density at least 2.22 g/cc and up to or greater than 2.34 g/cc. The refractory metal container is formed of tantalum, niobium, tungsten, molybdenum or alloys thereof in the form of a canister or alternatively plasma sprayed or chemical vapor deposited onto a powder compact. Hot isostatic pressing at 1800° C. and 30 KSI (206.8 MPa) argon pressure for four hours produces a bulk density of 2.34 g/cc. Complex shapes can be made.
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机译:将硼粉在耐火金属容器中热等静压制,以产生堆积密度至少为2.22 g / cc且不超过2.34 g / cc的固体硼整料。耐火金属容器由钽,铌,钨,钼或它们的合金以罐的形式形成,或者以等离子喷涂或化学气相沉积的形式沉积在粉末压块上。在1800°C和30 KSI(206.8 MPa)的氩气压力下进行热等静压四小时,其堆积密度为2.34 g / cc。可以制成复杂的形状。
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