Mixing and Circulation Under Pressure

Tsiklis, Daniil S.

doi:10.1007/978-1-4684-8360-4_7

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2012

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“…The decade of 1960-1970 was characterized by a worldwide outburst of technological information regarding the development of high pressure devices (HPD) for superhard materials treatment. In fact, starting with the first diamond synthesis in 1955, several devices were successfully built for treatment and transformation of superhard materials by combined high pressure and high temperature (HPHT) conditions [1][2][3]. These HPDs were divided into two main categories: uniaxis and multiaxis, depending on the number of pistons actuating systems.…”

Section: Introductionmentioning

confidence: 99%

Novel High Pressure Multi-Anvil Device for Diamond Production

Bobrovnitchii

Skury²,

Monteiro

2012

MSF

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The synthesis of diamond crystal from powder mixture of graphite and catalyst alloy is a well known process but it is limited to relatively small crystal dimensions due to the size of the conventional compression chambers. In this work the design and construction of a novel high pressure multi-anvil device with a parallelepiped shaped compression chamber is presented. The design allows the length of the chamber to be limited only by the working space of the press equipment. A four horizontal anvils device was constructed for a specific 2500 ton press with a 600mm working space. The efficiency of this construction was tested in diamond crystal synthesis.

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Section: Introductionmentioning

confidence: 99%