Results 161 to 170 of about 7,543 (218)

Continuous Evolution of Eu<sup>2+</sup>/Eu<sup>3+</sup> Mixed Valency Driven by Pressure and Temperature. [PDF]

open access: yesJ Phys Chem A
Xu M   +7 more
europepmc   +1 more source

Realizing Scalable Chemical Vapor Deposition of Monolayer Graphene Films on Iron with Concurrent Surface Hardening by <i>In Situ</i> Observations. [PDF]

open access: yesACS Appl Mater Interfaces
Fickl B   +18 more
europepmc   +1 more source

Adaptive Epitaxy of C-Si-Ge-Sn: Customizable Bulk and Quantum Structures. [PDF]

open access: yesAdv Mater
Concepción O   +15 more
europepmc   +1 more source

Superhard transparent polycrystalline cubic boron nitride

Applied Physics Letters, 2021
Polycrystalline cubic boron nitride (PcBN) has been synthesized at 14 GPa and high temperatures of 1300–2000 °C in a two-stage multi-anvil cell. Sintered PcBN synthesized at 1700–1800 °C and 14 GPa with a grain size of ∼200 nm is optically transparent with a transmittance of ∼70% at wavelengths of 400–1500 nm and has the Vickers hardness of ∼63–69 GPa.
Mengxi Zhao   +10 more
openaire   +1 more source

Thermal effects on tribological behaviors of polycrystalline cubic boron nitride

Ceramics International, 2021
Abstract In order to understand the thermal damage mechanisms of polycrystalline cubic boron nitride (PcBN) under elevated temperature and the following influences on its tribological behaviors, the physicochemical characteristic of annealed PcBN under various temperatures was investigated by X-ray diffraction, Scanning electron microscopy and energy
Dezhong Meng   +6 more
openaire   +1 more source

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