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Spark plasma sintering of tantalum carbide
Scripta Materialia, 2010A tantalum carbide powder was consolidated by spark plasma sintering. The specimens were processed under various temperature and pressure conditions and characterized in terms of relative density, grain size, rupture strength and hardness. The results are compared to hot pressing conducted under similar settings.
Evan Khaleghi +3 more
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Spark plasma sintering of transparent alumina
Scripta Materialia, 2007Transparent alumina with a fine grain size (0.27 μm) was obtained by controlling the heating rate during spark plasma sintering processing. The alumina sintered at 1150 °C with a heating rate of 8 °C/min has a residual porosity of 0.03% and an in-line transmission of 47% for a wavelength of 640 nm.
Byung-Nam Kim +3 more
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Numerical Simulation of Spark Plasma Sintering
Advances in Science and Technology, 2010A macro-scale model of spark plasma sintering (SPS) that couples electrical, thermal, stress-strain and densification components is presented. The continuum theory of sintering is incorporated enabling the evolution of the densification based on local conditions, thus a true spatial density distribution could be obtained. Specimen behavior is described
Cristina Garcia, Eugene Olevsky
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Spark plasma sintering as advanced PM sintering method
Powder Metallurgy, 2002AbstractA short overview of works on spark plasma sintering (SPS) is given in the present paper. SPS is a newly developed rapid sintering technique with a great potential for achieving fast densification results with minimal grain growth in a short sintering time.
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Spark plasma sintering of TiNi nanopowders
SPIE Proceedings, 2004Nano-size TiNi powder prepared by electro explosion of TiNi wire process as processed by spark plasma sintering for 5 minutes at variable temperatures between 700 and 1000°C. The shape memory effect and crystallagraphy of both the powder and the sintered TiNi specimens were extensively characterized.
Yongqing Fu +2 more
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Spark plasma sintering of silver nanopowder
SPIE Proceedings, 2007The spark plasma sintering behaviour of silver nanopowder prepared by the electro-explosion method was investigated. Consolidation was carried out from 50°C to 800°C for 5 mins at 34 MPa with differential scanning calorimetry indicating a sintering onset temperature as low as 160°C and an activation energy of 86±1 kJ/mol.
H. B. Ng +4 more
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Spark-plasma-sintered BaTiO3/Al2O3 nanocomposites
Materials Science and Engineering: A, 2003Abstract Using spark plasma sintering (SPS), BaTiO3/Al2O3 nanocomposites were successfully consolidated to more than 99% of theoretical density at a sintering temperature as low as 1150 °C in only 3 min. The processing methods for these dense nanocomposites where the retained grain size of alumina matrix was in the nanometer level were developed. The
Guo-Dong Zhan +4 more
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Spark plasma sintering of SiAlON ceramics
International Journal of Self-Propagating High-Temperature Synthesis, 2009Investigated was the spark plasma sintering (SPS) of sialon ceramics from SHS-produced powders. Experimentally established were (a) sintering temperatures that ensure a required density, phase composition, and microstructure of sintered multicomponent sialon ceramics, (b) individual stages of the SPS process, and (c) the effect of starting powder ...
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