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Online since: June 2022
Authors: Yofentina Iriani, Dianisa Khoirum Sandi, Kusumandari Kusumandari, Uli Ulfa
Co-precipitation is a process involving two or more compounds precipitated in a solvent.
The result of co-precipitation comes from the supersaturated solution undergoing nucleation, growth, coarsening, and/or agglomeration processes simultaneously that then the result is heated to remove hydroxides, oxalates, or carbonates compounds [7].
In this case, the high sintering temperature could eliminate the presence of the oxides and carbonaceous compounds so that a pure BT is received.
Alloys Compd. 829 (2020)
Gergs, Effect of grain size on the dielectric properties of Lanthanumdoped PbTiO3 perovskite ceramics, IOSR Journal of Applied Phys. 6 (2014) 20-29
Online since: September 2011
Authors: Yan Qing Yang, Han Ying Wang, Gao Shan Ma
Some previous studies indicated the strength and the toughness of MoSi2 can be increased by means of dopping approaches,alloying approaches or recombination approaches,and the SiC phase has been considered as one of the best reinforcer[5-7].
The aim of this work was to prepare MoSi2 composites reinforced with different volume fraction of in–situ formed SiC particles and to investigate the effects of SiC particles on the microstructure and mechanical properties of SiCP/MoSi2 composites.
Formation of nanocrystalline MoSi2 compound subjected to mechanical alloying.
Journal of ceramic processing research [J], 2008, 9(3),PP:186-189 [8] Xiaoou Yi;Weihao Xiong;Jian Li.
Online since: December 2013
Authors: Andanastuti Muchtar, Norhamidi Muhamad, Hamimah Abdul Rahman, Huda Abdullah
Introduction The aim of lowering the operating temperature (400−600 °C) of solid oxide fuel cells (SOFC) in order to enhance the materials stability and reduce the cost has brought a major problem related with the large cathode overpotential.
The XRD profiles (Fig. 1) do not show any secondary compound and confirmed that no chemical reactions took place between the cathode and electrolyte powder for all the calcination temperatures.
Alloys Compd. 532 (2012) 109-113
International Journal of Hydrogen Energy, 2012. 37(24): p. 19351-19356
Online since: December 2024
Authors: Olaitan Lukman Akanji, Sadiq Raji, Abimbola Patricia I. Popoola
Metals and alloys that exhibit the unwanted phenomenon of corrosion can cause chaos in almost every industry, leading to significant losses in terms of money and safety when replacing damaged items [9, 17, 18] and even major operational issues [19].
Using corrosion inhibitors of inorganic or organic compounds is a method used to reduce the detrimental effects of corrosive environments [30].
These compounds are 6-chloroquinazolin-4(3H)-one (Q1A), 2,3-dihydro-3-phenethyl-2-thioxopyrido[2,3-d]pyrimidin-4(1H)-one (Q1B), and 6-chloro-2,3-dihydro-3-phenethyl-2-thioxoquinazolin1(1H)-one (Q1C).
The compounds consisted of 4-(imidazole-1-il)-phenol (PHEN), [4-(1H-imidazole-1-yl)-phenyl]methanol (METH), 2-(1H-imidazol-1-yl)-1-phenylethan-1-one (ETHAN), and 4-(1H-imidazole-1-yl)benzaldehyde.
Finding ecologically benign organic compounds likely to be used as corrosion inhibitors in engineering practices is currently the main problem in corrosion science [18, 43].
Online since: April 2011
Authors: Fevzi Yilmaz, Ahmet Güleç, Ahmet Türk, Fatih Üstel
As an alternative for Zn coating, Zn/Al 85/15 alloys coating show very good corrosion resistances and can protect substrate materials against harsh corrosive environments.
The aim of this study is comparison of anticorrosion performance of Zn and Zn/Al 85/15 coatings on ductile iron pipe surfaces as protective coatings against corrosion.
Zn/Al 85/15 alaşımlarının daha yüksek korozyon performansı gösterdiği açıklanmıştır.<}0{>Numerous studies [12-14] dealing with Zn and Zn/Al 85/15 coatings reported higher corrosion resistance performances for Zn/Al 85/15 alloys.<0} {0>M Zecho[15] ve arkadaşları, Zn ve Zn/Al 85/15 elektrik ark sprey kaplamaların korozyon performanslarını çeşitli atmosferik koşullarda 3 yıl süren alan testleri ile kıyaslamıştır.<}0{>M.
Cox: Journal of Thermal Spray Technology Vol. 7 (1998), p. 513 [7] F.
Nürnberger: Otto-Graf- Journal Vol. 10 (1999), p. 60 [16] L.G.
Online since: January 2016
Authors: Gopal S. Upadhyaya
Fig. 9 shows the normalized master sintering curves of various metals and alloys.
Fig. 9: Normalized master sintering curves for various metals and alloys [72]. 11.
Certainly, the formation of intermetallic compounds at the interface of two phases cannot be grouped under classical liquid phase sintering [77].
According to him “Restoration of bonds broken at the surfaces of grains in contact takes place during sintering of metals and compounds.
Upadhyaya, Manganese in Powder Metallurgy Alloys, Manganese Centre, Paris, 1986
Online since: December 2013
Authors: Martin Geier, André J. Souza
This study aims to determine empirical equations that can estimate the surface texture obtained in finish turning of steel AISI 4140 through the roughness parameters Ra, Rt, Ry and Rz.
Different setups of cutting parameters (feed rate f and tool corner radius rε will be used in order to get the best possible correlation in turning operations to generate low roughness values and higher material removal rates and so aiming to assess when turning with wiper tools and high feed rate can be a competitive alternative to grinding operations.
Astakhov [9] states that the wiper design focuses on its nose geometry, which instead of having a single corner radius rε, has a nose formed by radii (rε and rw) and planar faces, compounding the wiper surface, Fig. 1.
Wanat, “Surface finish generated in hard turning of quenched alloy steel parts using conventional and wiper ceramic inserts,” International Journal of Machine Tools and Manufacturing., vol. 46, no. 15, pp. 1988–1995, 2006
Online since: July 2025
Authors: Alif Alfarisyi Syah, Neena Zakia, Irma Kartika Kusumaningrum, Anugrah Ricky Wijaya, Al Izaa Hafilah
This research aims to maximize the potential of natural materials.
This research aims to utilize natural materials, namely coral skeletons and beach sand for calcium and silica sources as NaCl adsorbents.
The Indonesian Green Technology Journal, 10(2)
International journal of biological macromolecules, 164, 44234434 [13] Wen, Y., Xie, Z., Xue, S., Long, J., Shi, W., & Liu, Y. (2022).
Journal of Alloys and Compounds, 805, 198-204
Online since: April 2011
Authors: Chang Hui Yang, Chong Wang, Chao Jun Wan, Yan Feng Tian
Aiming at preparing the high performance concrete with metakaolin (MK) replacing silica fume (SF), comparison of fluidity between MK concrete and SF concrete was investigated in this paper.
SF is the by-product of silicon-containing alloys manufacture.
Fig. 4 Comparison of fluidity of MK concrete and SF concrete under the condition of different GGBS replacement This section aimed to compare the fluidities between high performance concretes prepared with MK and SF in the case of different water/binder ratio.
Investigation on compounding and application of C80 – C100 high-performance concrete.
Journal of Building Materials, 2002, 5(1), 21-25 (In Chines)
Online since: July 2017
Authors: S.V. Kuz’min, V.I. Lysak, Evgeniy V. Kuz’min, Alexander P. Peev
The aim of this study is to investigate the effect of ultrasound vibrations on the structure and properties of the heat-affected zone of joints obtained by explosive welding.
Ushanova, Analysis of the misoriented structures in the model copper-copper compound formed by explosion welding, Technical Physics, 59 (2014) 1819-1832
Dai, Effects of high-intensity ultrasonic-wave emission on the weldability of aluminum alloy 7075-T6, Materials Letters. 57 (2003) 2447-2454
Kuzmin, Energy balance during explosive welding, Journal of Materials Processing Technology. 222 (2015) 356-364
Evolution of ideas, Journal of Materials Processing Technology. 212 (2012) 150-156
Showing 1861 to 1870 of 2034 items