Results 51 to 60 of about 13,468 (252)

Review on the possible tool materials for friction stir welding of steel plates [PDF]

open access: yes, 2014
The friction stir welding (FSW) process is mainly used in industrial applications for joining low melting temperature materials such as aluminium and magnesium. FSW has many advantages in comparison with conventional fusion arc welding.
De Waele, Wim   +4 more
core   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Research on PCBN Tool Dry Cutting GCr15

open access: yesMachines, 2018
This paper is based on the theoretical analysis designs of a dry cutting orthogonal test in order to study a phenomenon that the radial force is larger than the main cutting force when a PCBN (polycrystalline cubic boron nitride) tool hard turns GCr15 ...
Qinghua Li   +3 more
doaj   +1 more source

Microstructures and mechanical properties of PCBN materials

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
The PCBN material was prepared by high temperature and high pressure method at 1 500℃ and different holding times with CBN-TiN-Ti-Al2O3 as the initial raw material. The phase compositions, microstructures, mechanical properties and cutting performance of
Bin ZHANG, Hongyi GUO
doaj   +1 more source

Wear of polycrystalline boron nitride tool during the friction stir welding of steel [PDF]

open access: yes, 2018
The wear issue of a polycrystalline boron nitride (PCBN) tools during the friction stir welding of two grades of steel, DH36 and EH46, was studied. Two welding traverse and tool rotational speeds were used when welding the DH36 steel.
CD Sorensen   +8 more
core   +2 more sources

STUDY ON THE HARDNESS AND WEAR PERFORMANCE OF LOW CONTENT POLYCRYSTALLINE CUBIC BORON NITRIDE CUTTING TOOLS

open access: yesInternational Journal of Mechatronics and Applied Mechanics
- Low content polycrystalline cubic boron nitride (PcBN) samples were synthesized by synthesis method with cubic boron nitride (cBN) contents (wt%) of 50%, 60%, and 70%, respectively.
Dongman Yu, Qingyuan Yang, Xiaojing Li
semanticscholar   +1 more source

Wafer‐Scale Single‐Crystal Boron Nitride: Synthesis and Integration in 2D Electronics

open access: yesAdvanced Materials Interfaces, EarlyView.
This Review highlights recent breakthroughs in wafer‐scale hBN synthesis and its integration into next‐generation 2D electronics. We analyze growth kinetics, epitaxial strategies, and stacking‐sequence control while correlating material quality with device performance.
Jaewon Wang, Soon‐Yong Kwon
wiley   +1 more source

Influence of the preparation processes on the residual stresses in PCD and PcBN tools

open access: yesEuropean Journal of Materials
Ultra-hard cutting materials such as polycrystalline diamond (PCD) and cubic boron nitride (PcBN) are increasingly being used as cutting tools in machining.
Bernd Breidenstein   +2 more
doaj   +1 more source

Effect of Sintering Temperature on In Situ Synthesis of Polycrystalline Cubic Boron Nitride in cBN-Al-Ti System

open access: yesCailiao gongcheng, 2018
Polycrystalline cubic boron nitride(PcBN) was prepared under a high temperature and an ultra-high pressure using an in situ synthesis method. The influence of sintering temperature on composition, micro-structure, relative density, porosity and ...
YU Wen-lin   +4 more
doaj   +1 more source

Modelling heat conduction in polycrystalline hexagonal boron-nitride films [PDF]

open access: yes, 2017
We conducted extensive molecular dynamics simulations to investigate the thermal conductivity of polycrystalline hexagonal boron-nitride (h-BN) films.
Jiang, Jin-Wu   +3 more
core   +2 more sources

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