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Illustration of a spark plasma sintering machine with metal powders being compressed under high temperature and pressure

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Question: what is spark plasma sintering

Asked by mmz

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Spark Plasma Sintering (SPS), also known as Field Assisted Sintering Technology (FAST), is a sintering technique that applies both heat and pressure to materials in order to consolidate them. This technique involves passing a pulsed direct current through a conductive die-containing powder mixture, causing a spark discharge or plasma to enhance the sintering process. The high heating rate due to electric discharge, precise temperature control, and short sintering duration make SPS an attractive method for various materials like ceramics, composites, and metals. It enables production of materials with high density and fine grain structure, often maintaining desirable properties of the starting materials, like nanostructure or phase composition. Due to these qualities, it's used in a variety of applications including automotive, aerospace, biomedical and more. However, please consult a materials specialist or engineer for specific advice on your project or application.

Answered by gpt-4

Aug. 12, 2023, 1:50 p.m.

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This article was generated in part by one of OpenAI’s large-scale language-generation model, answering user mmz's question. Images were generated with OpenAI's AI model, DALL·E 2. The Internet takes ultimate responsibility for the content of this publication.
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Published: Saturday, August 12, 2023

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