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Online since: December 2008
Authors: Ludger Weber, Reza Tavangar, C. Edtmaier
Research
so far has mainly focused on using carefully adjusted matrix alloys or on the use of suitable coatings
of the inclusions [1, 2, 3].
For this, the diamonds can be either coated with carbide forming elements like B, Si or Ti, or formation of a strong interface can be conferred by using alloys containing reactive elements like Fe, Ni, Mo, B, Si, Cr etc., the kind of element mainly depends on the used matrix metal.
The simultaneous recording of the isotope m44 (CO2), m28 (CO or N2), m32 (S or O2), m18 (H2O), m15 (organic compounds or CH3) and m12 (C) by mass spectroscopic measurements indicate evolving gases by reactions during heating.
Journal of Materials Science (1989), 24(6), pp 2231-8 [5] T.
Journal of Applied Crystallography (1969), 2 (Pt. 4), 183-1888 [7] D.
For this, the diamonds can be either coated with carbide forming elements like B, Si or Ti, or formation of a strong interface can be conferred by using alloys containing reactive elements like Fe, Ni, Mo, B, Si, Cr etc., the kind of element mainly depends on the used matrix metal.
The simultaneous recording of the isotope m44 (CO2), m28 (CO or N2), m32 (S or O2), m18 (H2O), m15 (organic compounds or CH3) and m12 (C) by mass spectroscopic measurements indicate evolving gases by reactions during heating.
Journal of Materials Science (1989), 24(6), pp 2231-8 [5] T.
Journal of Applied Crystallography (1969), 2 (Pt. 4), 183-1888 [7] D.
Online since: December 2023
Authors: Jintana Kumpa, Somyote Kongkarat
With an aim to utilize the local-based waste materials, this research investigated the production of mill scale - biomass pellet (MBP) as an alternative charged material for EAF steelmaking.
Utilization of mill scale can be found in many researches, for example, the production of Fe bearing compounds [1] and the production of pellets for smelting processes [2-4].
El-Fawkhry, Conversion of mill scale waste into valuable Products via carbothermic reduction, Journal of Metallurgy. 4(2015) 1-9
Peng, Preparation of reduced iron powder using combined distribution of wood-charcoal by microwave heating, J.of Alloys and Compounds. 613(2014) 102-106
Utilization of mill scale can be found in many researches, for example, the production of Fe bearing compounds [1] and the production of pellets for smelting processes [2-4].
El-Fawkhry, Conversion of mill scale waste into valuable Products via carbothermic reduction, Journal of Metallurgy. 4(2015) 1-9
Peng, Preparation of reduced iron powder using combined distribution of wood-charcoal by microwave heating, J.of Alloys and Compounds. 613(2014) 102-106
Online since: January 2025
Authors: I Wayan Karyasa, Enike Dwi Kusumawati
Thus, the sericulture can produce medical biomaterials both from the cultivation of Bombyx mori such as some bioactive compounds of protein fibers from cocoon namely sericin and fibroin, and other medicinal compounds from pupae and cocoon shells, and from mulberry plants, namely some bioactive compounds from leaves, fruit, as well as stem and root barks.
Mulberry leaves of Morus alba L were detected containing of two bioactive compounds, namely quercetin 3-O-malonylglucoside and kaempferol 3-O-malonylglucoside that were found to be able increase the growth hormone secretion and as a key ingredient for the anti-aging activity [38].
The bioactive compounds containing in silk mulberry plants, Morus alba L as known as white mulberry and Morus nigra as known as black mulberry and the other varieties, can be used in human health, preventively and therapeutically, for instances, anti-oxidant, anti-cancer, anti-diabetic, anti-cholesterol, anti-aging and anti-obesity.
Some bioactive compounds were isolated from the silkworm cocoon shells, for instance, two flavonoids containing the l-proline moiety, 6-C-[(2S,5S)-prolin-5-yl] quercetin (prolinalin A) and 6-C-[(2S,5R)-prolin-5-yl] quercetin (prolinalin B) [47].
A multifunctional hybrid inorganic-organic coating fabricated on magnesium alloy surface with antiplatelet adhesion and antibacterial activities.
Mulberry leaves of Morus alba L were detected containing of two bioactive compounds, namely quercetin 3-O-malonylglucoside and kaempferol 3-O-malonylglucoside that were found to be able increase the growth hormone secretion and as a key ingredient for the anti-aging activity [38].
The bioactive compounds containing in silk mulberry plants, Morus alba L as known as white mulberry and Morus nigra as known as black mulberry and the other varieties, can be used in human health, preventively and therapeutically, for instances, anti-oxidant, anti-cancer, anti-diabetic, anti-cholesterol, anti-aging and anti-obesity.
Some bioactive compounds were isolated from the silkworm cocoon shells, for instance, two flavonoids containing the l-proline moiety, 6-C-[(2S,5S)-prolin-5-yl] quercetin (prolinalin A) and 6-C-[(2S,5R)-prolin-5-yl] quercetin (prolinalin B) [47].
A multifunctional hybrid inorganic-organic coating fabricated on magnesium alloy surface with antiplatelet adhesion and antibacterial activities.
Online since: August 2008
Authors: Humberto Gracher Riella, Michelangelo Durazzo
Thus, a research program was initiated at IPEN
aimed at investigating the possible causes of the poor sintering behavior of UO2-Gd2O3 fuel
prepared by the dry mechanical blending method.
These are based on changing certain fabrication procedures, as follows: a) activity optimization of the UO2 powder used in the preparation of UO2-Gd2O3 mixed powder, which can be achieved by adjusting the conditions for AUC reduction; b) sintering cycle optimization by adjusting the heating rate, temperature and duration of the isothermal sintering step; c) adjustment in the homogenization procedure of the UO2 and Gd2O3 powders aimed at obtaining a mixture presenting a high level of homogeneity.
Additional work is required, aimed at determining ways that guarantee good homogeneity in the suspension and filtration processes, possibly by using some type of dispersant.
McCormick: Journal of Alloys and Compounds Vol. 281 (1998), p. 146
These are based on changing certain fabrication procedures, as follows: a) activity optimization of the UO2 powder used in the preparation of UO2-Gd2O3 mixed powder, which can be achieved by adjusting the conditions for AUC reduction; b) sintering cycle optimization by adjusting the heating rate, temperature and duration of the isothermal sintering step; c) adjustment in the homogenization procedure of the UO2 and Gd2O3 powders aimed at obtaining a mixture presenting a high level of homogeneity.
Additional work is required, aimed at determining ways that guarantee good homogeneity in the suspension and filtration processes, possibly by using some type of dispersant.
McCormick: Journal of Alloys and Compounds Vol. 281 (1998), p. 146
Online since: July 2020
Authors: Ramlan Ramlan, Muljadi Muljadi, Dedi Setiabudidaya, A.A.A. Bama
Introduction
There are some of type permanent magnet such as ferrite based magnet (Ba/SrFe12O19) , alloy based magnet (AlNiCo and SmCo) and rare earth based magnet (NdFeB) [1].
While ferrite-based magnets are also called as ceramic magnets because the components of the material are in the form of oxide compounds, the magnetic properties of ferrite based magnets are not very high, but it has a curie temperature of around 450oC and is very stable in atmospheric conditions or it has a good corrosion resistance [3,4].
The aim of this research is to create a hybrid bonded magnet Ba-ferrite / NdFeB system with Poly vinyl alcohol adhesive, and to know the effect of the comparison of Ba ferrite : NdFeB on physical properties, magnetic properties and corrosion resistance.
Coey, Magnetism and Magnetic Materials Journal of Magnetism and Magnetic Materials, Cambridge University Press 248 (2002) 441–456
Jiang, Magnetic properties of hybrid polymer bonded Nd–Fe–B/ ferrite magnets Journal of Applied Physics 99 (2006) 08B513 1-3
While ferrite-based magnets are also called as ceramic magnets because the components of the material are in the form of oxide compounds, the magnetic properties of ferrite based magnets are not very high, but it has a curie temperature of around 450oC and is very stable in atmospheric conditions or it has a good corrosion resistance [3,4].
The aim of this research is to create a hybrid bonded magnet Ba-ferrite / NdFeB system with Poly vinyl alcohol adhesive, and to know the effect of the comparison of Ba ferrite : NdFeB on physical properties, magnetic properties and corrosion resistance.
Coey, Magnetism and Magnetic Materials Journal of Magnetism and Magnetic Materials, Cambridge University Press 248 (2002) 441–456
Jiang, Magnetic properties of hybrid polymer bonded Nd–Fe–B/ ferrite magnets Journal of Applied Physics 99 (2006) 08B513 1-3
Online since: August 2012
Authors: Ruth Herta Goldsmith Aliaga Kiminami, Ana Cristina Figueiredo de Melo Costa, R.L.P. Santos, M.M. Tavares, Daniel Cornejo
Bienkowski, Journal of Physique, Vol. 46 (1985), p. 433
Journal of rare earths.
Journal Metas.
Chen, Journal of Hazardous Materials.
Journal of Alloys and Compounds.
Journal of rare earths.
Journal Metas.
Chen, Journal of Hazardous Materials.
Journal of Alloys and Compounds.
Online since: January 2011
Authors: Mariyam Jameelah Ghazali, M.C. Isa, Andanastuti Muchtar, Abdul Razak Daud, Nik Hassanuddin
The aim of current study is to focus on the effects of Al2O3-13% TiO2 particle size on coating properties via plasma spray method on commercial mild steel substrate.
Vardavoulias: Journal of Alloys and Compounds Vol. 495 (2010), p. 611 [9] D.
Vardavoulias: Journal of Alloys and Compounds Vol. 495 (2010), p. 611 [9] D.
Online since: December 2024
Authors: Sefiu Adekunle Bello, Raphael Gboyega Adeyemo, Boluwatife Olukunle, Abdul Ganiyu Funsho Alabi, Funsho Olaitan Kolawole, Mohammed Kayode Adebayo, Sikiru Ottan Abdulraman
This is due to PNPNP additions with changes in the wavenumbers of the observed peaks affirming formation of new compounds due to interactions of the PLA molecules and PNPNP.
The peaks in the XRD results signify some identified compounds.
X-ray diffractogram of the pristine PLA showing some identified compounds Fig. 7.
The difference is linked with identified compounds in the pristine PLA (Figure 6) which are not the same with those detected in the PLA composites.
Variations in the structures of the detected compounds are proposed to contribute to the overall microstructural differences in Figure 9a-b.
The peaks in the XRD results signify some identified compounds.
X-ray diffractogram of the pristine PLA showing some identified compounds Fig. 7.
The difference is linked with identified compounds in the pristine PLA (Figure 6) which are not the same with those detected in the PLA composites.
Variations in the structures of the detected compounds are proposed to contribute to the overall microstructural differences in Figure 9a-b.
Online since: November 2014
Authors: Sofiah Hamzah, Jamali Sukaimi, Mohd Sabri Mohd Ghazali
Considering these wastes as potential source, the present research aims to extract HAp from unexplored biowastes of FS which are abundant in Malaysia.
There were CaO and Ca(OH)2 compounds detected around detected at 2θ=53.1° in all samples indicated incomplete transformation of the calcite.
Manuel, Hydroxyapatite nanoparticles: A review of preparation methodologies, Journal of Applied Biomaterials & Biomechanics 2004; 2: 74-80 [13] C.
White, Synthesis and crystallization of macroporous hydroxyapatite, Journal of Solid State Chemistry 178 (2005) 2838–2845 [22] H.
Lim, Hydroxyapatite-doped poly(lacticacid) porous film coating for enhanced bioactivity and corrosion behavior of AZ31Mg alloy for orthopedic applications, Ceramics International39 (2013) 183–195
There were CaO and Ca(OH)2 compounds detected around detected at 2θ=53.1° in all samples indicated incomplete transformation of the calcite.
Manuel, Hydroxyapatite nanoparticles: A review of preparation methodologies, Journal of Applied Biomaterials & Biomechanics 2004; 2: 74-80 [13] C.
White, Synthesis and crystallization of macroporous hydroxyapatite, Journal of Solid State Chemistry 178 (2005) 2838–2845 [22] H.
Lim, Hydroxyapatite-doped poly(lacticacid) porous film coating for enhanced bioactivity and corrosion behavior of AZ31Mg alloy for orthopedic applications, Ceramics International39 (2013) 183–195
Online since: July 2018
Authors: А.A. Saranchin, Vladimir I. Berg, Artem V. Kryukov, Dmitriy P. Il’yaschenko
Mathematical modeling is aimed at developing models adequately describing various welding processes or their relationship [1-19].
Talabanov Matematicheskoe modelirovanie mekhanizma obrazovaniya monolitnyh soedinenij dlya optimizacii processa svarki [Mathematical modeling of the mechanism of forming monolithic compounds for optimizing the welding process].
Journal of Mechanics engineering and automation 2:411-s to 421-s
Journal of engineering manufacture 224B:627-639
Journal of constructional steel research 84:62-s to 71-s
Talabanov Matematicheskoe modelirovanie mekhanizma obrazovaniya monolitnyh soedinenij dlya optimizacii processa svarki [Mathematical modeling of the mechanism of forming monolithic compounds for optimizing the welding process].
Journal of Mechanics engineering and automation 2:411-s to 421-s
Journal of engineering manufacture 224B:627-639
Journal of constructional steel research 84:62-s to 71-s