Capsule for high pressure, high temperature processing of materials and methods of use
First Claim
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1. A method for preparing a crystalline material in a supercritical fluid, the method comprising:
- disposing a process capsule into an interior volume of a support capsule, the process capsule comprising a first material and the support capsule comprising a second material;
loading at least one fluid into said process capsule;
sealing the process capsule, wherein the process capsule is sealed and the support capsule is left unsealed, said at least one fluid generating internal pressure in said sealed process capsule, said support capsule providing structural support for said sealed process capsule, enabling said sealed process capsule to be pressurized to 150 psi;
disposing said support capsule containing said sealed process capsule in a high pressure apparatus; and
heating the process capsule to a temperature between room temperature and 1500°
C. to generate the supercritical fluid within the process capsule to form a crystalline material within the process capsule.
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Abstract
An improved capsule and method of use for processing materials or growing crystals in supercritical fluids is disclosed. The capsule is scalable up to very large volumes and provides for cost-effective processing. In conjunction with suitable high pressure apparatus, the capsule is capable of processing materials at pressures and temperatures of up to approximately 8 GPa and 1500° C., respectively.
220 Citations
24 Claims
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1. A method for preparing a crystalline material in a supercritical fluid, the method comprising:
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disposing a process capsule into an interior volume of a support capsule, the process capsule comprising a first material and the support capsule comprising a second material; loading at least one fluid into said process capsule; sealing the process capsule, wherein the process capsule is sealed and the support capsule is left unsealed, said at least one fluid generating internal pressure in said sealed process capsule, said support capsule providing structural support for said sealed process capsule, enabling said sealed process capsule to be pressurized to 150 psi; disposing said support capsule containing said sealed process capsule in a high pressure apparatus; and heating the process capsule to a temperature between room temperature and 1500°
C. to generate the supercritical fluid within the process capsule to form a crystalline material within the process capsule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification