Results 21 to 30 of about 276,966 (307)
Improvement of piezoresistance properties of silicon carbide ceramics through co-doping of aluminum nitride and nitrogen [PDF]
, 2008 The piezoresistance coefficient was measured on co-doped silicon carbide ceramics. Evaluation samples of alpha-silicon carbide ceramics were first fabricated by glass capsule HIP method using powder mixture of silicon carbide and aluminum nitride with ...
Hayashi, Hidetaka +2 more
core +1 more source
Silicon Carbide Platelet/Silicon Carbide Composites [PDF]
Journal of the American Ceramic Society, 1995 α‐silicon carbide platelet/β‐silicon carbide composites have been produced in which the individual platelets were coated with an aluminum oxide layer. Hot‐pressed composites showed a fracture toughness as high as 7.2 MPa·m 1/2 .
Mitchell, T. +3 more
openaire +2 more sources
Materials Research Express, 2023 An new insight into the relationship between the C-Cr Ratio and carbides, mechanical property Cr Alloyed of cold working die Steel were investigated by optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS ...
Chi Hongxiao +5 more
doaj +1 more source
Effect of strain amplitude on the isothermal fatigue behavior of H13 hot work die steel
工程科学学报, 2021 Thermal fatigue cracking is the main failure mode of hot work die steel during die casting and hot forging. Thermal fatigue cracking accounts for a large proportion of mold failures and seriously affects the service life of the mold.
Zhen-qiang ZHU +3 more
doaj +1 more source
Metals, 2023 The evolution of the microstructure, the precipitation behavior, and the mechanical performances of Nb-V-Ti micro-alloyed steel prepared under different tempering time were studied using transmission electron microscopy (TEM), X-ray diffraction (XRD ...
Qian Zhao, Zhixia Qiao, Ji Dong
doaj +1 more source
AIP Advances, 2014 Polytype stability is very important for high quality SiC single crystal growth. However, the growth conditions for the 4H, 6H and 15R polytypes are similar, and the mechanism of polytype stability is not clear. The kinetics aspects, such as surface-step
Hui-Jun Guo +9 more
doaj +1 more source
Supported Molybdenum Carbide and Nitride Catalysts for Carbon Dioxide Hydrogenation
Frontiers in Chemistry, 2020 Catalysts based on molybdenum carbide or nitride nanoparticles (2–5 nm) supported on titania were prepared by wet impregnation followed by a thermal treatment under alkane (methane or ethane)/hydrogen or nitrogen/hydrogen mixture, respectively.
Marwa Abou Hamdan +6 more
doaj +1 more source
LubricantsThe AZ31 magnesium alloy is an attractive lightweight metallic material, but its low corrosion resistance and wear resistance significantly limit its widespread application in fields such as aerospace, the automotive industry, and mechanical engineering.
Yueyu Huang +6 more
doaj +1 more source
INFLUENCE OF THE CAST IRON’S CHEMICAL COMPOSITION ON THE INTERPHASE DISTRIBUTION OF MN
Nauka ta progres transportu, 2016 Purpose. This paper focuses on obtaining the dependencies of the manganese content in the metallic base (Mno) and its interphase distribution coefficient (KPMn) on the cast iron’s chemical composition in the system Fe–C–Cr – Ni –Mn. Methodology. The cast
V. V. Netrebko, I. P. Volchok
doaj +1 more source
Materials Research Express, 2022 Alloyed high manganese steel is a general type of wear-resistant steel, and its precipitates and austenite matrix grain sizes play an important role in impact abrasive wear behavior.
Zulai Li +5 more
doaj +1 more source