Design and calibration of a rapid quench hydrothermal apparatus
Design and calibration of a rapid quench hydrothermal apparatus
复制标题
快速淬火水热装置的设计与校准
DOI：
10.2109/jcersj.96.1041
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发表时间：
1988
影响因子：
1.1
通讯作者：
H. Nakazawa
中科院分区：
文献类型：
--
作者：
H. Yamada;T. Fujita;H. Nakazawa
设计了一种大体积快速急冷水热装置。该装置在淬火样品和具有大的样品空间和小的温差方面具有优势。为了确定最佳操作条件，在水压为100 MPa，温度为300°、500°和700°C时，测量了容器内的温度梯度，并对以下变量进行了测量：容器的倾斜角度、容器插入炉内的长度和炉内的温度梯度。在700°C的温度下，在2°C的温差下，成功地获得了10 cm范围内的平坦温度梯度。操作模式的特征如下：容器相对于水平方向倾斜-10°，并插入具有“更陡”温度梯度的炉中。当容器从炉中取出时，反应的样品仅在1分钟内淬火。所介绍的装置和操作方法为水热实验提供了一种新的方法。
A rapid quench hydrothermal apparatus with a large volume has been newly designed. The apparatus has advantages in quenching the sample and in having a large sample space with small temperature differences. To determine the optimum operation conditions, the temperature gradients inside the vessel were measured at the water pressure of 100MPa, the temperatures of 300°, 500° and 700°C and for the following variables: the angle of inclination of vessel, the length of vessel inserted into the furnace and the temperature gradient of the furnace. The flat temperature gradient over the range of 10cm is successfully obtained with the temperature difference of 2°C at the temperature of 700°C. The characteristics of the operation modes are as follows: the vessel is inclined at -10° for the horizontal and is inserted to the furnace with “steeper” temperature gradients. A reacted sample is quenched within only 1 minute when the vessel is removed from the furnace. The apparatus and its operations described offer a new method for hydrothermal experiments.