Results 71 to 80 of about 276,966 (307)

Carbon release by selective alloying of transition metal carbides

open access: yes, 2011
We have performed first principles density functional theory calculations on TiC alloyed on the Ti sublattice with 3d transition metals ranging from Sc to Zn. The theory is accompanied with experimental investigations, both as regards materials synthesis
Biplab Sanyal   +18 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Precipitation and Evolution Behavior of Carbide During Heat Treatments of GCr15 Bearing Steel

open access: yesCailiao gongcheng, 2017
The evolution behavior of carbides in GCr15 bearing steels after spheroidization annealing, austenitization quenching and low temperature tempering was investigated by the method of quantitative metallography.
MA Chao, LUO Hai-wen
doaj   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Thermal shock and erosion resistant tantalum carbide ceramic material [PDF]

open access: yes, 1978
Ceramic tantalum carbide artifacts with high thermal shock and mechanical erosion resistance are provided by incorporating tungsten-rhenium and carbon particles in a tantalum carbide matrix. The mix is sintered by hot pressing to form the ceramic article
Honeycutt, L., III, Manning, C. R.
core   +1 more source

Deterministic Detection of Single Ion Implantation

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead   +6 more
wiley   +1 more source

Effect of solid solution temperature and aging time on microstructure and mechanical properties of Inconel 617 superalloy

open access: yesCailiao gongcheng
The effects of solid solution temperature and aging time on the microstructure and mechanical properties of Inconel 617 superalloy are studied by using optical microscope, scanning electron microscope, and transmission electron microscope.
WANG Qingpeng   +6 more
doaj   +1 more source

Silicon carbide semiconductor technology for high temperature and radiation environments [PDF]

open access: yes
Viewgraphs on silicon carbide semiconductor technology and its potential for enabling electronic devices to function in high temperature and high radiation environments are presented.
Matus, Lawrence G.
core   +1 more source

Increased voltage photovoltaic cell [PDF]

open access: yes, 1985
A photovoltaic cell, such as a solar cell, is provided which has a higher output voltage than prior cells. The improved cell includes a substrate of doped silicon, a first layer of silicon disposed on the substrate and having opposite doping, and a ...
Bickler, D. B.   +2 more
core   +1 more source

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