Application and Mechanism of SPD(Spark Plasma Sintering) Systems and Technology

Abstract

Spark Plasma Sintering (SPS) is a newly developed process sintering- a synthesis and processing technique - which makes possible sintering and sinter-bonding at low temperatures and short periods by charging the intervals between powder particles with electrical energy and effectively applying a high temperature spark plasma generated momentarily. It is regarded as a rapid sintering method, using self-heating action from inside the powder, similar to self-propagating high-temperature synthesis (SHS) and microwave sintering. SPS system offer many advantages over conventional system using hot press (HP) sintering, hot isostatic pressing (HIP) or atmospheric furnaces, including ease of operation and accurate control of sintering energy, as well as high sintering speed, high reproducibility, safety and reliability. This paper reviews the application and mechanism of SPS process is expected to find increased use in the fabrication of porous media with high strength, which are difficult to sinter by conventional sintering methods.

Spark Plasma Sintering (SPS) is a newly developed process sintering- a synthesis and processing technique - which makes possible sintering and sinter-bonding at low temperatures and short periods by charging the intervals between powder particles with electrical energy and effectively applying a high temperature spark plasma generated momentarily. It is regarded as a rapid sintering method, using self-heating action from inside the powder, similar to self-propagating high-temperature synthesis (SHS) and microwave sintering. SPS system offer many advantages over conventional system using hot press (HP) sintering, hot isostatic pressing (HIP) or atmospheric furnaces, including ease of operation and accurate control of sintering energy, as well as high sintering speed, high reproducibility, safety and reliability. This paper reviews the application and mechanism of SPS process is expected to find increased use in the fabrication of porous media with high strength, which are difficult to sinter by conventional sintering methods.