Hybrid-toroidal anvil: a replacement for the conventional WC anvil used for the large volume cubic high pressure apparatus

Han, Qigang; Yang, Wenke; Jia, Xiaopeng; Ma, Hongan

doi:10.1080/08957959.2014.971785

Cited by 3 publications

(1 citation statement)

References 10 publications

(11 reference statements)

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“…As can be seen from the simulated temperature distribution diagram, the maximum temperature at the center of carbide anvil top surface is 198.09℃. It is in good agreement with the actual measured temperature of 200℃ [17]. From the path defined in Fig.…”

Section: Compared With the Temperature Field Of Traditional Carbide A...supporting

confidence: 87%

Cemented Carbide Layer Thickness Optimization of Carbide Anvil Based on Thermodynamic Coupling

Xie¹,

Wang

et al. 2022

mech

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This paper presents cemented carbide layer thickness optimization of a carbide anvil based on thermodynamic coupling analysis. In our method, the established carbide anvil system through SolidWorks is firstly imported into the finite element software. The temperature field and thermal-mechanical coupling field of the carbide anvil system are analyzed. From the simulation results, it can be found that the contact stress of steel ring under temperature load is increased by 17.9% compared with that without temperature load. Thus, the service life of carbide anvil under temperature load is lower than that without temperature load. In addition, the four edges of anvil are prone to fatigue cracks due to the phenomenon of shear stress concentration. This is consistent with the actual crack location of cemented carbide anvil, which verifies the accuracy and rationality of thermal-mechanical coupling simulation. The thickness of cemented carbide layer is optimized based on thermodynamic coupling. The optimization results show that the thickness of 1.8cm is the best when size ranges from 1.8cm to 2.2cm. The maximum contact stress, the maximum shear stress, the temperature are all reduced by 387.5MPa, 110.55MPa, and 10.11℃, respectively.

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Section: Compared With the Temperature Field Of Traditional Carbide A...supporting

confidence: 87%

Cemented Carbide Layer Thickness Optimization of Carbide Anvil Based on Thermodynamic Coupling

Xie¹,

Wang

et al. 2022

mech

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show abstract

Large-volume cubic press produces high temperatures above 4000 Kelvin for study of the refractory materials at pressures

Zhou

Wang

et al. 2020

Review of Scientific Instruments

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The advent of a large-volume high-pressure apparatus has led to the discovery of many new materials with exceptional properties for widespread applications such as superhard materials (e.g., diamonds). However, for most conventional devices, the pressure and temperature capabilities are often limited to 6 GPa and 2300 K, which severely impedes the study of materials at extended pressures and temperatures. In this work, we present experimental optimizations of the high-pressure cell assembly for cubic press with a focus on the improvement of its temperature capability, leading to a record temperature value of ∼4050 K and largely extended pressure conditions up to ∼10 GPa with a centimeter-sized sample volume. Pressures of the new assembly at high temperatures are investigated by the melting-point method, giving rise to a series of parallel isoforce loading lines associated with thermally induced pressure. For the first time, the high-pressure melting curve of tungsten carbide is determined up to 3800 K and 8 GPa, and single-crystal refractory materials of Mo, Ta, and WC are also grown using the optimized cell.

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Operation of large-volume cubic press above 8 GPa and 2500°C with a centimeter-sized cell volume using an optimized hybrid assembly

Song

Zhou

et al. 2021

High Pressure Research

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Hybrid-toroidal anvil: a replacement for the conventional WC anvil used for the large volume cubic high pressure apparatus

Cited by 3 publications

References 10 publications

Cemented Carbide Layer Thickness Optimization of Carbide Anvil Based on Thermodynamic Coupling

Cemented Carbide Layer Thickness Optimization of Carbide Anvil Based on Thermodynamic Coupling

Large-volume cubic press produces high temperatures above 4000 Kelvin for study of the refractory materials at pressures

Operation of large-volume cubic press above 8 GPa and 2500°C with a centimeter-sized cell volume using an optimized hybrid assembly

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