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- W4304687582 abstract "W and W-La 2 O 3 powders with a range of particle sizes were processed by furnace sintering, direct resistance sintering, and spark plasma sintering to determine the effects of current and pressure on densification and grain size. The results from these experiments are combined with experimental data from literature and compared to a model for densification based on master sintering curve (MSC) concepts to assess the effectiveness of finer particle sizes, the application of current, and the combined application of current and pressure for achieving sintered densities above 96% of theoretical for pure tungsten and for tungsten containing small amounts of oxides and/or carbides. Experimental results for grain size are also compared to the model predictions for pressureless sintering. The same model is used to assess the effectiveness of transition metal additions, the application of pressure, and the application of electromagnetic radiation on enhancing the sintering of tungsten and refining its grain size. • The same W and W-La 2 O 3 powders were furnace sintered, direct resistance sintered, and spark plasma sintered to directly compare densification and grain growth. • A model based on master sintering curve concepts was used to assess different techniques for enhancing densification. • Experimental results from prior publications on sintering of tungsten and oxide-dispersion strengthened tungsten are compared to the model. • Submicrometer powders, application of pressures above 200 MPa, and addition of transition metal additions are effective in enhancing densification. • Electrical current, microwaves, and lasers do not provide obvious sintering enhancement." @default.
- W4304687582 created "2022-10-12" @default.
- W4304687582 creator A5052077200 @default.
- W4304687582 date "2023-01-01" @default.
- W4304687582 modified "2023-10-18" @default.
- W4304687582 title "Enhanced sintering of tungsten" @default.
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- W4304687582 doi "https://doi.org/10.1016/j.ijrmhm.2022.106017" @default.
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