ABSTRACT Generation of high pressure is a key to the investigation of the interior of the Earth. The Kawai-type multianvil apparatus (KMA) has been widely used in the fields of Earth science and material science. In conventional KMA, tungsten carbide (WC) has been used as the second stage anvil material. However, attainable pressure is limited to ∼70 GPa even if newly developed WC is used. Recently, on the other hand, second stage anvils of sintered diamond that is much harder than WC have enabled us to extend the pressure range of KMA up to 120 GPa, corresponding to the pressure of the D” layer in the Earth’s mantle. It is evident that our development of pressure generation facilitates the investigation of the structure and dynamics of the deep mantle of the Earth.

中文翻译：

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配备烧结金刚石砧座的 Kawai 型多砧装置中的高压产生

摘要 高压的产生是研究地球内部的关键。Kawai型多砧装置（KMA）已广泛应用于地球科学和材料科学领域。在传统的 KMA 中，碳化钨 (WC) 已被用作第二级砧材料。然而，即使使用新开发的 WC，可达到的压力也仅限于 ~70 GPa。最近，另一方面，比 WC 硬得多的烧结金刚石的第二阶段砧使我们能够将 KMA 的压力范围扩展到 120 GPa，对应于地幔中 D”层的压力。很明显，我们对压力产生的发展促进了对地球深部地幔的结构和动力学的研究。