Mechanical properties and thermal stability of pure W and W-0.5 wt%ZrC alloy manufactured with the same technology

Deng, H.W.; Xie, Zhouqing; Wang, Y.K.; Liu, R.; Zhang, T.; Hao, Ting; Wang, X.P.; Fang, Q.F.; Liu, C.S.

doi:10.1016/j.msea.2017.12.112

Cited by 86 publications

(19 citation statements)

References 23 publications

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“…Copyright 2018 Elsevier the grain shape and size almost did not change, as shown in Fig. 4, indicating that swaged WY10 was thermostable with RCT higher than 1300 °C, which is higher than that of rolled pure W [19]. This is ascribed to the Y 2 O 3 nanoparticle-pinning GBs, which restricts the migration of GBs and enhances the activation energy of the migration of GBs [29].…”

Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 91%

“…In this sense, the RCT should be between 1000 and 1100 °C. To further investigate the recrystallization behaviour of tungsten for applications of engineering, Deng et al [19] fabricated a pure W plate by pressure-less sintering in hydrogen and hot rolling, because rolling deformation can eliminate the pores, densify materials, and further improve the mechanical properties of W [21,35]. The metallographic images of rolled pure W before and after annealing are presented in Fig.…”

Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 99%

“…The metallographic images of rolled pure W before and after annealing are presented in Fig. 2 [19]. When annealing below 1300 °C, the grain size keeps almost constant, but when annealing above 1300 °C, the grains grow significantly.…”

Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 99%

“…In addition, the dispersion of nanoscale particles produces a great number of phase interfaces that could act as sinks for irradiation-induced point defects, and thus could improve the irradiation resistance. For examples, oxides (e.g., La 2 O 3 and Y 2 O 3 ) or carbides (e.g., TiC, ZrC, TaC, and HfC) or nanosized K bubbles were introduced into W matrix to form the oxide or carbide dispersionstrengthened (ODS or CDS) and K-doped W materials [6,[17][18][19][20][21][22][23][24][25][26][27][28][29]. And recently, a series of ODS-W or CDS-W materials with enhanced thermal stabilities were developed.…”

Section: Introductionmentioning

confidence: 99%

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The thermal stability of dispersion-strengthened tungsten as plasma-facing materials: a short review

et al. 2019

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One key challenge for the development of fusion energy is plasma-facing materials. Tungsten-based materials are promising candidates for plasma-facing components (PFCs) in the magnetic confinement nuclear fusion reactors because of their high melt temperature, high-thermal conductivity, high-thermal load resistance, low tritium retention, and low sputtering yield. In fusion reactors, PFCs are exposed to high-thermal flux, because there are some transient events such as plasma disruptions, edge-localized modes, and vertical displacement events (VDEs). Especially, in VDEs, a heat flux of 10-100 MW m −2 with duration of milliseconds-to-several seconds can induce recrystallization and then change the microstructure of tungsten-based plasma-facing materials, leading to instability of microstructures. Then, a significant degradation of material properties is caused such as a reduction of mechanical strength and fracture toughness, a rise in the ductile-to-brittle-transition temperature well, and decrease of irradiation/high-thermal load resistance. Therefore, many efforts were devoted to improve the thermal stability of tungsten-based materials as high as possible, such as oxide dispersion strengthening, carbide dispersion strengthening, and K bubbles dispersion strengthening. Here, the thermal stabilities of various dispersion-strengthened tungsten materials are reviewed by evaluating their recrystallization temperature and the corresponding hardness evolutions. In addition, the possible development trends are proposed.

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Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 91%

Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 99%

Section: Thermal Stability Of Pure W K-doped and Oxide Dispersion-smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The thermal stability of dispersion-strengthened tungsten as plasma-facing materials: a short review

et al. 2019

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“…Furthermore, mechanical milling can also be used to produce the nano-sized W matrix composite powders with the addition of the second-phase particles (TaC, TiC, ZrC, Y 2 O 3 , etc.) [34][35][36][37][38][39]. After the densification or deformation processing, the produced W matrix composites showed excellent tensile mechanical property and low ductile-brittle transition temperature (DBTT).…”

Section: Powder Preparation Techniquesmentioning

confidence: 99%

Manufacturing of tungsten and tungsten composites for fusion application via different routes

2019

Tungsten

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Tungsten is a refractory metal with the highest melting point of all metals, which is considered as a promising candidate material for plasma-facing materials in the future fusion reactor. However, tungsten faces several challenges from intrinsic embrittlement, irradiation embrittlement and recrystallization embrittlement during the operation of the fusion reactor. To satisfy the fusion engineering application, an advanced tungsten material with the fine grain and dense microstructure is required and developed. This paper briefly introduces the application background of the tungsten materials and mainly illustrates a series of common techniques for manufacturing advance tungsten materials, such as powder preparation technologies, bulk densification techniques, continuous processing technologies and the coating and additive manufacturing technologies. Furthermore, the development prospects for manufacturing techniques of tungsten materials are also presented in the end. Considering the tungsten materials employed in the fusion engineering application, combining these scalable techniques of the wet-chemical method, pressureless sintering and continuous deformation processing techniques would be the possible research and development routes to realize the manufacture of the advanced tungsten materials.

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Transient Implantable Electronics for Postsurgery Preventive Medicine

Mirzajani,

Zolfaghari,

Akbari Nakhjavani

et al. 2024

Adv Funct Materials

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The field of postoperative care has seen a remarkable shift toward the utilization of electronic implantable devices, including sensors, biosensors, stimulators, and drug delivery systems, all designed with a biodegradable form factor and wireless data/power transmission capability. These technologies hold immense potential for postsurgery out‐of‐hospital monitoring during the postdischarged period, where continuous monitoring of physiological signals is lacking. Furthermore, these devices eliminate the need for secondary surgeries required for device retrieval as they can safely degraded in the body, thus enhancing patient recovery. This review delves into the latest advancements in biodegradable implantable devices, examining their application in monitoring vital signs, the innovative wireless communication and powering technologies they employ, and the biodegradable materials that enable their function. The analysis extends to evaluating the efficacy and limitations of these devices across various medical applications. Moreover, it explores future research directions, emphasizing material advancements, device miniaturization, customization, and the integration of artificial intelligence to create closed‐loop therapeutic systems. This comprehensive review underscores the transformative potential of these technologies in enhancing postoperative care and outlines the pathway for future innovations in this dynamic field.

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Mechanical properties and thermal stability of pure W and W-0.5 wt%ZrC alloy manufactured with the same technology

Cited by 86 publications

References 23 publications

The thermal stability of dispersion-strengthened tungsten as plasma-facing materials: a short review

The thermal stability of dispersion-strengthened tungsten as plasma-facing materials: a short review

Manufacturing of tungsten and tungsten composites for fusion application via different routes

Transient Implantable Electronics for Postsurgery Preventive Medicine

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