Explanipedia

Multi-Walled Carbon Nanotubes Network-Toughened Diamond Composite via Atomic Interface Continuity Open

Xiaohui Yu, Jiawei Zhang, Keliang Qiu, Tengfei Xu, Xi Shen , et al. · 2025

Enhancing the fracture toughness of diamond while preserving its hardness is a significant challenge. Most toughening strategies have primarily focused on modulating the internal microstructural units of diamonds, including adjustments to …

Synthesis of large-sized spherical Co–C alloys with soft magnetic properties though a high-pressure solid-state metathesis reaction Open

Jia Xu, Leilei Zhang, Yi Tian, Binbin Wu, Tao Yu , et al. · 2024

This study reports a novel high-pressure solid-state metathesis (HSM) reaction to produce spherical bulk (diameters 2–4 mm) Co–C alloys (Co 3 C and Co 1− x C x ) and a study of the formation and decomposition behaviors of spherical Co–C al…

Research on pressure transmission and sealing performance of pyrophyllite in a cubic large chamber static high-pressure device Open

Yi Tian, Ming‐Hao Du, Jiawei Zhang, Duanwei He · 2023

Owing to the need for a hydrostatic high-pressure cubic large cavity (hexahedral top) press used in high-pressure research and production of superhard material, two kinds of pyrophyllite powder compacts (A and B) from pyrophyllite mine in …

CSD 2074254: Experimental Crystal Structure Determination Open

Yue Tang, Hao Liang, Shixue Guan, Mengyang Huang, Wenqiang Wang , et al. · 2023

An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…

Applications and Use of Diamond Open

David Zhan, Abdellah Sellam, Abdelaziz Koumina, Abderrahim Bakak, Abdellah Hadaoui , et al. · 2022

This book focuses on the latest developments and applications of diamond materials. It describes and discusses different types of diamond materials, including polycrystalline diamond, diamond thin films, graphite, graphene, and nanodiamond…

Geodynamics Based on Solidification of Liquid/Molten Substances in the Earth’s Interior Open

Xin Li, Mingjiang Tao, Duanwei He · 2022

Since its formation, the Earth has cooled from molten magma to the present layered structure. The liquid and molten substance in the interior of the Earth continuously solidifies, radiating heat to the outer space and causing changes in th…

Equal compressibility structural phase transition of molybdenum at high pressure Open

Lun Xiong, Bin Li, Fang Miao, Q. Li, Guangping Chen , et al. · 2022

We have studied the high-pressure compression behavior of molybdenum up to 60 GPa by synchrotron radial x-ray diffraction (RXRD) in a diamond anvil cell (DAC). It is found that all diffraction peaks of molybdenum undergo a split at around …

Experimental study of simultaneous high-temperature and high-pressure assembly of Paris-Edinburgh press for neutron diffraction Open

Gong-Zhang Yang, Lei Xie, Xiping Chen, Ruiqi He, Tie-Xin Han , et al. · 2022

Paris-Edinbrugh (PE) press has been widely used in high pressure in-situ neutron diffraction experiments due to its advantages of large sample size, portability and simple structure. However, with the characteristics of uniaxial loa…

Elucidating the structural properties and reversible regional texture effect of GdB6 under high pressure Open

Yue Tang, Qiang Zhang, Hongbo Lou, Lijie Tan, Yi Tian , et al. · 2021

Novel Nitride Materials Synthesized at High Pressure Open

Pei Wang, Shanmin Wang, Yongtao Zou, Jinlong Zhu, Duanwei He , et al. · 2021

Nitride materials including conventional manmade superhard light-element nitrides, such as cubic boron nitride (cBN), cubic silicon nitride (γ-Si3N4), and carbonitrides, have been extensively used for machining (e.g., turning, cutting, gri…

Pressure-induced disordering of site occupation in iron–nickel nitrides Open

Binbin Wu, Li Lei, Feng Zhang, Qiqi Tang, Shan Liu , et al. · 2021

Controlled disordering of substitutional and interstitial site occupation at high pressure can lead to important changes in the structural and physical properties of iron–nickel nitrides. Despite important progress that has been achieved, …

Cutting-edge Technology: Developing the Hardest Material on Earth Open

Guodong Zhan, Timothy Moellendick, Duanwei He · 2021

Ultrastrong catalyst-free polycrystalline diamond Open

Qiang Li, Guodong Zhan, Dong Li, Duanwei He, Timothy Moellendick , et al. · 2020

Strength enhancement of nanocrystalline tungsten under high pressure Open

Jing Yang, Wen Deng, Qiang Li, Xin Li, Akun Liang , et al. · 2020

Three tungsten powder samples—one coarse grained (c-W; grain size: 1 µm–3 µm) and two nanocrystalline (n-W; average grain sizes: 10 nm and 50 nm)—are investigated under nonhydrostatic compression in a diamond anvil cell in separate experim…

CSD 1983060: Experimental Crystal Structure Determination Open

Yunxia Han, Duanwei He, Dejiang Ma, Qiming Wang, Yusheng Zhao , et al. · 2020

An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…

Optimal design and experimental verification of high-temperature and high-pressure assembly of neutron diffraction based on PE-type press Open

Mingquan Jiang, Xin Li, Leiming Fang, Xie Lei, Xiping Chen , et al. · 2020

High-pressure and high-temperature(high-P-T) in-situ neutron diffraction detection method is a field of growing interest, in particular, for its numerous applications in the field of condensed matter physics, crystal chemistry, geop…

Abnormal Grain Growth: A Potential Way to Construct Gradient Structure Open

He Li, Junpu Wang, Shun Wan, Resta A. Susilo, Hongliang Dong , et al. · 2020

Melting temperature of diamond and cubic boron nitride at 15 gigapascals Open

Akun Liang, Yinjuan Liu, Lan-Ting Shi, Li Lei, Feng Zhang , et al. · 2019

The melting temperature of diamond has not yet been experimentally measured under static pressure and these data for cubic boron nitride (cBN) are scarce. This lack of information is understandable due to the difficulty of heating opticall…

Hardness of Polycrystalline Wurtzite Boron Nitride (wBN) Compacts Open

Yinjuan Liu, Guodong Zhan, Qiang Wang, Duanwei He, Jiawei Zhang , et al. · 2019

Wurtzite boron nitride (wBN), due to its superior properties and many potential practical and scientific applications, such as ideal machining/cutting/milling ferrous and carbide materials, especially as an ideal dielectric substrate mater…

Dynamic impact strength of diamond-SiC superhard composite Open

Yuanyuan Li, Yu Yin, Chuanmin Meng, Lu Zhang, Tao Wang , et al. · 2019

Unlike the ductile materials, the failure seriously limits the strength of the brittle medium. To understand the mechanism of controlling the dynamic impact strength of diamond-SiC superhard composite under shock wave compression, the nume…

Pressure-induced structural and electronic transitions, metallization, and enhanced visible-light responsiveness in layered rhenium disulphide Open

Pei Wang, Yonggang Wang, Jingyu Qu, Qiang Zhu, Wenge Yang , et al. · 2018

Triclinic rhenium disulphide (ReS2) is a promising candidate for postsilicon electronics because of its unique optic-electronic properties. The electrical and optical properties of ReS2 under high pressure, however, remain unclear. Here we…

Origin of the phase change from pyrochlore to perovskite-like layered structure and a new lead free ferroelectric Open

Zhipeng Gao, Yi Liu, Chengjia Lu, Yongjun Ma, Yuanhua Xia , et al. · 2017

Materials with formula of A2B2O7 is a famous family with more than 300 compounds, and have abundant properties, like ferroelectric, multiferroic, and photocatalyst properties, etc. Generally, two structures dominate this family, which are …

Syntheses and studies of superhard composites under high pressure Open

Yinjuan Liu, Duanwei He, Pei Wang, Tang Ming-Jun, Chao Xu , et al. · 2017

Materials having Vickers hardness (HV) higher than 40 GPa are considered to be superhard. Superhard material is exclusively covalent and displays superior hardness, incompressibility, and wear resistance, which make this kind of material e…

Strength coupling in mixed phases under high pressure Open

Xiaozhi Yan, Haini Dong, Guangai Sun, Xiangting Ren, Duanwei He , et al. · 2016

The strength of a material can be altered by temperature, pressure, grain size, and orientation distributions. At the microscale, neighboring grains often play important roles in the elastic and plastic deformation process. By applying hig…

Phase transition induced strain in ZnO under high pressure Open

Xiaozhi Yan, Haini Dong, Yanchun Li, Chuanlong Lin, Changyong Park , et al. · 2016

Elastic, magnetic and electronic properties of iridium phosphide Ir2P Open

Pei Wang, Yonggang Wang, Liping Wang, Xinyu Zhang, Xiaohui Yu , et al. · 2016

Unusual Mott transition in multiferroic PbCrO <sub>3</sub> Open

Shanmin Wang, Jinlong Zhu, Yi Zhang, Xiaohui Yu, Jianzhong Zhang , et al. · 2015

Significance Understanding of the insulator–metal Mott transition in correlated systems has been one of the central themes in condensed-matter physics for more than half a century. The original Mott concept of a transition mechanism has be…

Synthesis, Hardness, and Electronic Properties of Stoichiometric VN and CrN Open

Shanmin Wang, Xiaohui Yu, Jianzhong Zhang, Liping Wang, Kurt Leinenweber , et al. · 2015

Here, we report synthesis of single-crystal VN and CrN through high-pressure ionexchange reaction routes. The final products are stoichiometric and have crystallite sizes in the range of 50-120 μm. We also prepared VN and TiN crystals usin…

Diamond-<i>c</i>BN alloy: A universal cutting material Open

Pei Wang, Duanwei He, Liping Wang, Zili Kou, Yong Li , et al. · 2015

Diamond and cubic boron nitride (cBN) as conventional superhard materials have found widespread industrial applications, but both have inherent limitations. Diamond is not suitable for high-speed cutting of ferrous materials due to its poo…

The Hardest Superconducting Metal Nitride Open

Shanmin Wang, Daniel Antonio, Xiaohui Yu, Jianzhong Zhang, Andrew Cornelius , et al. · 2015

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