60 Result(s)
within
Engineering
Earth Sciences, general
Engineering, general
Yi**ang Chen
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Article
High-temperature properties of particle-strengthened W-Re
In recent years there has been renewed interest in the development of tungsten alloys for space power and advanced aerospace propulsion systems. Tungsten alloys have great potential for ultrahigh-temperature a...
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Article
Comparing hydrogen testing methods for wrought aluminum
In this study on selected wrought aluminum alloys, several commonly used methods for determining hydrogen were compared and verified with regard to accuracy, reproducibility, and process-related limits. The tw...
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Article
Jerky-type phenomena at nanocomposite surfaces: The breakdown of the Coulomb friction law
This article concentrates on the jerkytype phenomenon of surfaces in relative motion (i.e., abreakdown of the Coulomb friction law) in nanocomposite materials. Physical arguments are provided to understand the...
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Article
Scalable Fabrication of Metal Oxide Functional Materials and Their Applications in High-Temperature Optical Sensing
We report a scalable manufacturing approach to produce nano-porous metal oxide films and the dopant variants using a block-copolymer template combined with a sol–gel solution processing approach. The refractiv...
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Article
Recovery of Silver and Gold from Copper Anode Slimes
Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold. This article provides a comprehensive ove...
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Article
Electronic Structure of Copper-Decorated Carbon Nanotubes
Carbon nanotubes (CNTs) encapsulated with copper chains have been investigated with quantum mechanics calculations, with an emphasis on the effects of copper on CNTs electronic structure and the resultant cond...
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Article
Recovery of Iron from Chromium Vanadium-Bearing Titanomagnetite Concentrate by Direct Reduction
The recovery of iron from chromium vanadium-bearing titanomagnetite concentrate was investigated by direct reduction, followed by magnetic separation. The results indicated that the metallization rate of iron ...
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Article
Hemimorphite Ores: A Review of Processing Technologies for Zinc Extraction
With the gradual depletion of zinc sulfide ores, exploration of zinc oxide ores is becoming more and more important. Hemimorphite is a major zinc oxide ore, attracting much attention in the field of zinc metal...
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Article
Simulation of Cooling Rate Effects on Ti–48Al–2Cr–2Nb Crack Formation in Direct Laser Deposition
Transient temperature history is vital in direct laser deposition (DLD) as it reveals the cooling rate at specific temperatures. Cooling rate directly relates to phase transformation and types of microstructur...
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Article
Fabrication of Functionally Graded Ti and γ-TiAl by Laser Metal Deposition
TiAl alloys have become a popular choice in the aerospace and automotive industries, owing to their high specific yield strength, specific modulus, and oxidation resistance over titanium alloys and Ni-based s...
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Article
Mechanical Behavior and Microstructure Evolution of Bearing Steel 52100 During Warm Compression
High-performance bearing steel requires a fine and homogeneous structure of carbide particles. Direct deformation spheroidizing of bearing steel in a dual-phase zone can contribute to achieving this important ...
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Article
Effects of Surface-Modified MgO Nanoparticles on Inclusion Characteristics and Microstructure in Carbon Structural Steel
An innovative approach involving chemical modification of the surface of MgO nanoparticles (NPs) for steelmaking and application of NPs to carbon structural steel has been investigated. The results show that t...
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Article
Removal of Cadmium from Cobalt Sulfate by Solvent Extraction Using Cyanex 301
A variety of reagents, including P204, P507, and Cyanex 301, were used for extraction of cobalt and cadmium from cobalt sulfate solution. It was found that Cyanex 301 exhibited the best separation efficiency f...
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Article
Al–CNT–Ni composite with significantly increased strength and hardness
In this study, aluminium–carbon nanotube–nickel (Al–CNT–Ni) composite was prepared by powder metallurgy from pure Al powder and Ni-encapsulated CNT. Previously, carbon nanotubes were coated with nickel followi...
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Article
Investigation of ultrashort (< 1 min) calcination processes for conversion of Pt–SnOx from mixture of chloroplatinic acid and tin(II) chloride
We investigate the ultrashort (< 1 min) calcination process for Pt–SnOx catalysts converted from a mixture solution of chloroplatinic acid and tin(II) chloride in air. An electric furnace is used to test the ultr...
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Article
Microstructure and Properties of W-30 wt.%Cu Composites Reinforced with WC Particles Prepared by Vapor Deposition Carbonization
W/WC composite powders formed of WC ceramic particles dispersed on the surface of tungsten powders were fabricated by vapor deposition carbonization. Furthermore, W-30 wt.%Cu composites reinforced with WC cera...
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Article
Facile Preparation of Self-Reducible Cu Nanoparticle Paste for Low Temperature Cu-Cu Bonding
Cu nanoparticle (NP) paste is considered the next-generation die-attach material because of its cost-effectiveness and high conductivity and electro-migration resistance. However, the spontaneous oxidation of ...
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Article
Action Mechanism of Streptomyces diastatochromogenes KX852460 Against Rhizoctonia solani AG-3 Involving Basidiospores Suppression and Oxidative Damage
This research was aimed to study the effect of ethyl acetate extracts from Streptomyces diastatochromogenes KX852460 on action mechanism at various stages of life cycle of Rhizoctonia solani AG-3, such as sclerot...
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Article
Recovery of Arsenic from Arsenic-Bearing Cobalt/Nickel Residue Using Sodium Persulfate
Cobalt/nickel residue has a high content of arsenic, and it poses a great threat to humans. It is absolutely necessary to treat the residue. In this study, the leaching of cobalt/nickel residue using alkali at...
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Article
Phonon Transport Across Coherent and Incoherent Interfaces
Phonon-mediated heat transport in two-dimensional superlattices with coherent and incoherent interfaces is simulated by using the concurrent atomistic-continuum method. The energy transmission across superlatt...
