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APPARATUS FOR DIRECT MELT SYHTHESIS OF INTERMETALLIC COMPOUNDS
APPARATUS FOR DIRECT MELT SYHTHESIS OF INTERMETALLIC COMPOUNDS
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机译:直接熔融合成金属间化合物的装置
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1391299 Inorganic compounds ARTHUR D LITTLE Inc 2 Aug 1972 [5 Aug 1971] 36192/72 Heading C1A [Also in Division B1] Inorganic compounds containing at least two elements, one of which is a metal and one of which has a high vapour pressure, e.g. intermetallics, are prepared by heating the reactants in a vessel fitted with both a mechanical and liquid seal and surrounded by an atmosphere having a pressure equal to or higher than the maximum vapour pressure developed by the reactants, the mechanical and liquid seals being such that high pressure gases diffuse through them. The mechanical seal may be in the form of a plug 23 threadably engaged with the upper part of the cylindrical reaction vessel 10 containing liquid reactant 18. The liquid seal 27 may be in the form of molten material occupying a portion of the annular channel 26. The sealant may be B 2 O 3 or BaO alone or mixed with BaCl 2 , NaF, KCl or NaCl. The reaction vessel may be heated by R.F. coils 28 in the pressurizing atmosphere 29. The reactants may be mixed during synthesis by direct stirring or by cyclically raising and lowering the reaction vessel as in Figs. 7 and 8 (not shown). Nitrides are formed when the pressurizing gas is N 2 . The preparation of polycrystalline ingots of Hg 0À8 Cd 0À2 Te is exemplified.
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机译:1391299无机化合物ARTHUR D LITTLE Inc 1972年8月2日[1971年8月5日] 36192/72标题C1A [也在B1分部中]包含至少两种元素的无机化合物,其中一种是金属,而其中一种具有较高的蒸气压,例如金属间化合物是通过在装有机械密封和液体密封并处于压力等于或高于反应物产生的最大蒸气压的气氛的容器中加热反应物而制备的,机械密封和液体密封应具有很高的压力。压力气体通过它们扩散。机械密封件可以是与包含液体反应物18的圆柱形反应容器10的上部螺纹接合的塞子23的形式。液体密封件27可以是占据环形通道26的一部分的熔融材料的形式。密封剂可以是单独的B 2 O 3或BaO或与BaCl 2,NaF,KCl或NaCl混合。反应容器可以通过RF加热。可以在合成期间通过直接搅拌或通过如图1和图2所示循环升高和降低反应容器来混合反应物。图7和8(未示出)。当加压气体为N 2时会形成氮化物。以Hg 0-8 Cd 0-2 Te的多晶锭的制备为例。
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