Trial Production of NMR Probe Applicable et Super High Temperatures (2000。C)

硅酸盐熔体是无机高聚物，只有在高温下才能实现。它们的热力学性质已在相当程度上得到澄清。然而，在原子水平上的动力学仍有许多未解决的问题。核磁共振光谱有可能发送特定于固体（晶体和玻璃状）、超冷液体和液体状态的信号。在这个为期两年的项目中，成功制作了一种可以加热到1800摄氏度的核磁共振探针。它由无感缠绕在氮化硼绝缘体上的钨丝、防热罩和水套组成。630瓦数足以将样品温度提高到1700℃。在迫切需要的时候，准备更高的温度似乎并不困难。它可以安装在具有超导体的普通宽孔磁铁上。法国奥尔良国家科学研究中心的一个研究小组开发了一种核磁共振探针，它可以用激光加热装置加热到更高的温度。相比之下，我们的探针更好，因为它建立了热力学平衡。目前，在奥尔良与国际科学研究计划的一个联合项目正在进行。我们的目的是为了更好地发展高温核磁共振技术。

Silicate melts are inorganic high polymers which can be realized only at high temperatures. Their thermodynamic properties have been clarified to considerable extents. However, much remains unsettled as to dynamics at atomic levels. NMR spectroscopy is potential for sending signals specific to solid (crystaline and glassy), super cooled liquid, and liquid states.In this two years project, was successfully produced a NMR probe which can be heated up 1800。C.It is composed of tungsten wire wound non-inductivelly on a boron nitride insulator, a heat shield and a water jacket. 630 watage was enough to raise the sample temperature to 1700。C.It seems not to be difficult to prepare any higher temperature when it is deadly needed. It can be installed in the ordinary wide bore magnet operated with the super conductor.A research group at a CNRS (Orleans) in France developed a NMR probe which can be heated much higher temperature with a laser heating device. In contrast, our probe is better in the sense that the thermodynamic equilibrium is established. At present, a joint project at Orleans with the International Scientific Research Program is in operation. We aim at better development of the NMR technique at high temperatures with this exchange program.