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Elastic moduli and the mechanical properties of stishovite single crystals

机译:辉石单晶的弹性模量和力学性能

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摘要

In the beginning of the 1960s it was realized that the Earth's lower mantle consists mainly of silicates, in which silicon is in six-coordination to oxygen. The high-density phase of silica, stishovite, became the first, most important, and the simplest example of substances determining the behavior of the earth's interior [1]. Thus, the importance of stishovite studies cannot be too strongly emphasized. Until recently, however, the studies of stishovite characteristics were restricted by the absence of large high-quality single crystals of high-density silica. In particular, this is true of studies of the mechanical properties and elastic moduli. The information on the elastic and mechanical properties of high-density silica may shed light on mass transfer in, and the elastic characteristics of, the lower mantle.
机译:在1960年代初,人们认识到地球的下地幔主要由硅酸盐组成,其中硅与氧呈六配位。二氧化硅的高密度相,辉石,成为决定地球内部行为的物质的第一个,最重要的也是最简单的示例[1]。因此,不能过多地强调锡石研究的重要性。然而,直到最近,由于缺乏高密度二氧化硅的大型高质量单晶,对水滑石特性的研究受到了限制。尤其是对机械性能和弹性模量的研究是正确的。有关高密度二氧化硅的弹性和机械性能的信息可能会有助于下地幔的传质及其弹性特性。

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