Results 11 to 20 of about 10,057 (297)

NONMETALLIC IMPURITIES IN HIGH-CARBON STEEL

Литьë и металлургия, 2011
The experimental testing of application of fully magnesia casting ladles is carried out with the purpose of reduction of high-carbon steel contamination with nonmetallic impurities.
A. B. Sychkov, M. A. Zhigarev, A. V. Perchatkin, A. V. Peregudov, S. Ju. Zhukova, O. G. Gunkina, O. N. Vereshchagina, E. P. Baradyntseva, V. I. Gritsaenko   +8 more
doaj   +1 more source

Electronic communications between active sites on individual metallic nanoparticles in catalysis [PDF]

Nature Communications
Catalytic activity of metal particles is reported to originate from the appearance of nonmetallic states, but conductive metallic particles, as an electron reservoir, should render electron delivery between reactants more favorably so as to have higher ...
Dongrun Xu, Yaowei Jin, Bowen He, Xue Fang, Guokang Chen, Weiye Qu, Chenxin Xu, Junxiao Chen, Zhen Ma, Liwei Chen, Xingfu Tang, Xi Liu, Guangfeng Wei, Yaxin Chen   +13 more
doaj   +2 more sources

MATHEMATICAL MODELING OF NONMETALLIC PARTICLES MECHANICAL TRAJECTORY IN POURING BOX OF MNLZ

Литьë и металлургия, 2009
The mathematical model for calculations of nonmetallic impurities guidepath in system “steel ladle-pony ladle-crystallizer” is developed. Guidepathes of nonmetallic  particles of  different density, moving from steel ladle into crystallizer, are ...
A. N. Chichko, D. M. Kukuj, V. E. Sobolev, S. G. Lihousov, M. E. Kontanistov, V. V. Pivtsaev, A. V. Demin, O. P. Krasjuk   +7 more
doaj   +1 more source

Effect of carbon fiber tow structure on ablative properties of carbon fiber/phenolic composites

Cailiao gongcheng, 2022
Carbon fiber reinforced carbon/phenolic composites were prepared by using phenolic resin as matrix, plain carbon cloth and short carbon fiber as reinforcing agent.
KONG Guoqiang, AN Zhenhe, WEI Huazhen, LI Ying, SHAO Meng, YU Qiubing, JI Xiaojun, LI Juying, WANG Kang   +8 more
doaj   +1 more source

Copper Adsorption Using Hydroxyapatite Derived from Bovine Bone

Advances in Civil Engineering, 2022
Mining and smelting effluent have resulted in heavy metal-contaminated groundwater. Copper-polluted groundwater poses a severe threat to human health and the ecological environment.
Lingchang Kong, Xin Liu, Guocheng Lv, Tianming Liu, Peijun Zhang, Yuxin Li, Bin Chen, Libing Liao   +7 more
doaj   +1 more source

Application of nonmetallic frustrated cations in the activation of small molecules

, 2023
The concept of nonmetallic frustrated cations has been used in the small molecule activation. The in situ generated ambiphilic phosphinoborinium cation activated phenyl isocyanate, diisopropylcarbodiimide, and acetonitrile under very mild conditions ...
Kinga, Kaniewska-Laskowska, Marcin, Czapla, Jarosław, Chojnacki, Rafał, Grubba   +3 more
core   +1 more source

Effect of calcium treatment on nonmetallic inclusions in 20CrMnTiH gear steel

工程科学学报, 2021
Obtaining high-quality gear steel calls for strict requirements on the oxygen content, shape, composition, size, and distribution of nonmetallic inclusions to ensure high-quality steel and castability of the molten steel during the continuous casting ...
Sha JI, Li-feng ZHANG, Yan LUO, Wei-jian WANG, Xin-dong WANG, Jian-yuan ZHANG   +5 more
doaj   +1 more source

Formation and preservation of polyhalite-containing rocks in the halogen sediments of the Southern Cis-Urals

Литосфера, 2019
Research subject. In this research, we set out to investigate polyhalite-containing rocks of the Southern Urals. The purpose of this study was to characterize the patterns of formation and transformation of polyhalite-containing rocks, as well as to ...
A. K. Vishnyakov, M. S. Vafina, V. I. Poklonov   +2 more
doaj   +1 more source

Impact of silicon nanocrystal oxidation on the nonmetallic growth of carbon nanotubes [PDF]

, 2016
Carbon nanotube (CNT) growth has been demonstrated recently using a number of nonmetallic semiconducting and metal oxide nanoparticles, opening up pathways for direct CNT synthesis from a number of more desirable templates without the need for metallic ...
Ostrikov, Kostya, Mitra, Somak, Svrcek, Vladimir, Paul Maguire (2873786), Kostya Ostrikov, Conor Rocks, Rocks, Conor, Paul Maguire, Vladimir Svrcek, Maguire, Paul, Conor Rocks (2873789), Igor Levchenko, Igor Levchenko (2076565), Macias-Montero, Manuel, Somak Mitra, Levchenko, Igor, Manuel Macias-Montero, Somak Mitra (1371036), Davide Mariotti, Davide Mariotti (1371045), Vladimir Svrcek (1371042), Kostya Ostrikov (589876), Mariotti, Davide, Manuel Macias-Montero (1371033)   +23 more
core   +1 more source

Study on the Possible Error Due to Matrix Interaction in Automated SEM/EDS Analysis of Nonmetallic Inclusions in Steel by Thermodynamics, Kinetics and Electrolytic Extraction

Metals, 2020
Up to now, the Fe content of nonmetallic particles has often been neglected in chemical evaluations due to the challenging analysis of matrix elements in nonmetallic inclusions (NMI) in steel by scanning electron microscope and energy dispersive ...
Alexander Mayerhofer, Dali You, Peter Presoly, Christian Bernhard, Susanne K. Michelic   +4 more
doaj   +1 more source