Consolidation of W–Ta composites: Hot isostatic pressing and spark and pulse plasma sintering

Dias, M.; Guerreiro, F.; Correia, J.B.; Galaţanu, A.; Rosiński, M.; Monge, M.A.; Muñóz, A.; Alves, E.; Carvalho, Patrícia Almeida

doi:10.1016/j.fusengdes.2015.06.178

Cited by 33 publications

(26 citation statements)

References 18 publications

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“…The Ta 2 O 5 -SiO 2 binary system has a eutectic temperature at about 1550 ºC [15]. Decrease in the melting point with increase in addition of WO 3 Neither eutectic point of Ta2O5-WO3 nor relevant eutectic point in WO3-SiO2 binary system is reported. In this experiment, the formation of liquid phase of Ta2O5-WO3-SiO2 ternary systems in isothermal section 1300 ℃, 1400 o C and 1500 o C, is studied.…”

Section: Accepted Manuscriptmentioning

confidence: 93%

“…In detail, the liquidus region in the SiO 2 -WO 3 binary system reached the composition of 40% SiO 2 -60% WO 3 at 1400 ºC; it was further enlarged to reach 30% WO 3 . The Ta Tables and table captions A C C E P T E D M A N U S C R I P T M A N U S C R I P T…”

Section: Accepted Manuscriptmentioning

confidence: 94%

“…A C C E P T E D M A N U S C R I P T high density, high melting point, low ductile-to-brittle transition temperature and moderately high elastic modulus [1][2][3][4][5]. One particular problem with the Ta and the Ta alloys, however, is the poor oxidation resistance.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…As the temperature increased, the liquidus region in the phase diagram expanded, especially in the samples containing a high concentration of WO 3 . In detail, the liquidus region in the SiO 2 -WO 3 binary system reached the composition of 40% SiO 2 -60% WO 3 at 1400 ºC; it was further enlarged to reach 30% WO 3 .…”

Section: Accepted Manuscriptmentioning

confidence: 99%

See 3 more Smart Citations

Phase relations in the Ta2O5-WO3-SiO2 system

Wang

Chen

Bai

et al. 2017

International Journal of Refractory Metals and Hard Materials

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Section: Accepted Manuscriptmentioning

confidence: 93%

Section: Accepted Manuscriptmentioning

confidence: 94%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

See 2 more Smart Citations

Phase relations in the Ta2O5-WO3-SiO2 system

Wang

Chen

Bai

et al. 2017

International Journal of Refractory Metals and Hard Materials

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“…Appropriate mechanical, thermal and physical properties are commonly required in plasmafacing components [15]. The hydrogen isotope retention of the materials is also one of the essential considerations when selecting appropriate materials [9].…”

Section: Introductionmentioning

confidence: 99%

Tungsten-Based Composites for Nuclear Fusion Applications

Waseem¹,

Ryu²

2016

Nuclear Material Performance

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This chapter provides a comprehensive knowledge about the potential role of tungstenbased composites in fusion reactors and the research work which has been done in this very important area of nuclear materials. The characteristics of tungsten, which make it the most potential candidate for plasma-facing applications, have been presented along with the shortcomings in pure tungsten. The research work that has been done so far in the field of tungsten-based composites to overcome the problems with pure tungsten has been included. The fabrication, characterization, types of reinforcements and the classes of composites have been reviewed. The behavior of tungsten-based composites under various kinds of loads i.e. mechanical and thermal and environments radiations and oxidizing etc. has been summarized.

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Tungsten, Tungsten Alloys, and Tungsten Compounds

Trasorras

Wolfe

Knabl

et al. 2016

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Properties 2.1. Physical Properties 2.2. Chemical Properties 3. Raw Materials 3.1. Natural Resources 3.2. Tungsten Scrap 4. Production 4.1. Mining and Ore Beneficiation 4.2. Pretreatment of Ore Concentrates and Scrap 4.3. Hydrometallurgy 4.3.1. Digestion 4.3.2. Purification 4.3.3. Conversion of Sodium Tungstate Solution to Ammonium Tungstate Solution 4.3.4. Crystallization of Ammonium Paratungstate (APT) 4.4. Production of Tungsten Oxides 4.5. Production of Tungsten Metal Powder 4.6. Production of High‐Purity Tungsten Metal (99.999 ‐ 99.9999%) 4.7. Powder Metallurgy (PM) 4.8. Metal Injection Molding 4.8.1 MIM Process Overview 4.8.2 General Guidelines 4.8.3 MIM of Tungsten, Tungsten Alloys, Tungsten–Copper Composites, Tungsten Heavy Alloy, and Cemented Carbide 4.9. Additive Manufacturing of Tungsten and Cemented Carbides (WC–Co) 4.10. Fabrication of Wrought PM Tungsten 4.10.1. Shaping–Mill Products 4.10.2 Mechanical Bonding of Tungsten to Tungsten and Other Metals 4.11. Surface Treatment 4.12. Melting 5. Tungsten Alloys 5.1. Single‐Phase Solid‐Solution Alloys 5.2. Multiphase Alloys 5.2.1 Tungsten Heavy Metals 5.2.2. Tungsten–Copper and Tungsten–Silver Composites 5.2.3. Non‐Sag Tungsten 5.2.4 Alloys with Oxide Dispersions 5.2.5 Porous, Infiltrated Tungsten 6. Uses of Tungsten 6.1. Tungsten and Tungsten Alloys 6.2. Cemented Carbides (WC–Co) 6.3. Tungsten Coatings 7. Tungsten in Melting Metallurgy of Steel and Superalloys 7.1. Tungsten in Steel 7.2. Tungsten in Superalloys 7.3. Master Alloys 7.3.1 Ferrotungsten 7.3.2. Tungsten Melting Base 7.3.3. Master Alloys for Superalloys 7.4. Production of Master Alloys 7.4.1. Production of Ferrotungsten 7.4.2. Production of Tungsten Melting Base 7.4.3. Production of Master Alloys for Superalloys 8. Tungsten Compounds and Their Application 8.1. Tungsten Chemistry 8.2. Aqueous Solutions of Tungsten 8.3. Intermetallic Compounds 8.4. Compounds with Nonmetals 8.4.1. Tungsten–Boron Compounds 8.4.2. Tungsten–Carbon Compounds 8.4.3. Tungsten–Silicon Compounds 8.4.4. Tungsten–Group 15 Compounds 8.4.5. Tungsten–Oxygen Compounds 8.4.6. Tungsten–Chalcogenide Compounds 8.4.7. Tungsten–Halogenide Compounds 9. Tungsten in Catalysis 10. Tungsten Recycling 10.1. Direct Recycling 10.2. Semi‐Direct Methods 10.3. Hydrometallurgy 10.4. Melting Metallurgy 11. Analysis 11.1. Raw Materials 11.2. High Purity Intermediate Products, Tungsten Powder and Sintered Tungsten Metal 11.3 Trace Elements in High‐Purity Tungsten Metal 12. Economic Aspects 12.1. Production 12.2. Consumption 12.3 Price 13. Toxicology and Occupational Health 13.1. Toxicokinetics 13.2. Acute Toxicity 13.3. Subchronic and Chronic Toxicity 13.4. Genotoxicity 13.5. Carcinogenicity 13.6. Reproductive Toxicity 13.7. Developmental Toxicity 13.8. Immunotoxicity 13.9. Human Biomonitoring Data 13.10. Occupational Health 14. Acknowledgements

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Consolidation of W–Ta composites: Hot isostatic pressing and spark and pulse plasma sintering

Cited by 33 publications

References 18 publications

Phase relations in the Ta2O5-WO3-SiO2 system

Phase relations in the Ta2O5-WO3-SiO2 system

Tungsten-Based Composites for Nuclear Fusion Applications

Tungsten, Tungsten Alloys, and Tungsten Compounds

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