Preparation of single crystal wires of metals of high melting point
Preparation of single crystal wires of metals of high melting point
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DOI：
10.1098/rspa.1937.0206
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发表时间：
1937-11
期刊：
影响因子：
--
通讯作者：
E. Andrade
中科院分区：
文献类型：
--
作者：
E. Andrade
人们已经设计出了多种制备金属单晶线的方法（参见 Schmid 和 Boas 1935；Andrade 和 Roscoe 1937），但它们都需要达到金属熔点、转变点或再结晶温度的熔炉。对于温度非常高的金属，一般方法需要使用高温炉，但其成本昂贵且通常难以控制。所描述的方法消除了对这种熔炉的需要，并且似乎具有广泛的应用。通过电流流过导线，使导线保持高温，并施加辅助温度梯度。
Various methods of preparing single crystal wires of metals have been devised (see, e. g. Schmid and Boas 1935; Andrade and Roscoe 1937), but they all demand furnaces which reach the melting point, the transformation point, or the recrystallization temperature of the metal. In the case of metals where the temperature in question is very high the general methods call, then, for high temperature furnaces which are costly and often troublesome to control. The method to be described eliminates the need of such a furnace, and would seem to have a wide application. The wire is maintained at a high temperature by a current passing through it, and a subsidiary temperature gradient is applied.