Results 171 to 180 of about 3,417 (220)

Preparation of tantalum carbides by self-propagating high-temperature synthesis (SHS)

Soviet Powder Metallurgy and Metal Ceramics, 1979
1. The refractory tantalum carbides can be successfully prepared by the SHS method when the following conditions are fulfilled: a) Pure starting materials (Ta and C powders) are used and the metal powder is of small particle size; b) the process is performed in a large (adiabatic) reactor with a maximum reaction mass charge. 2. The phase
V. M. Shkiro, G. A. Nersisyan, I. P. Borovinskaya, A. G. Merzhanov, V. Sh. Shekhtman   +4 more
openaire   +1 more source

Electrochemistry and Dynamic Ionography of Self-Propagating High-Temperature Synthesis (SHS)

Materials Science Forum, 2007
The results of a new potentiometric technique for in situ diagnostics of self-propagating high-temperature synthesis (SHS) of different complex oxides are presented. This technique is based on electrochemical processes. The characteristic peaks attributed to the electric responses from cation streams of alkali, alkaline-earth and some elements of group
Maxim V. Kuznetsov, Yuri G. Morozov, Ivan P. Parkin   +2 more
openaire   +1 more source

Modeling Refractory Material Production by Self-Propagating High Temperature Synthesis (SHS)

MRS Proceedings, 1991
ABSTRACTSelf-propagating high temperature synthesis (SHS) can be used to prepare near net refractory shapes which are difficult to produce by other methods. In SHS, green compacts capable of strong exothermal reaction are ignited at one end and transformed into the desired products by a self-propagating reaction.
Thomas F. Crane, Ernesto Gutierrez-Miravete   +1 more
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Industrial technology based on self-propagating high-temperature synthesis (SHS)

Refractories and Industrial Ceramics, 2010
Characteristics of ceramic filters that are widespread in casting production practice are compared with titanium carbide FKT filters prepared by SHS. The advantages of FKT filters are demonstrated. Technology for preparing new highly refractory and heat and wear-resistant materials with improved universal properties and their fields of application are ...
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Preparation of CeB6 nano-powders by self-propagating high-temperature synthesis (SHS)

Journal of Rare Earths, 2011
Abstract CeB6 powders were prepared by high-temperature self-propagating synthesis (SHS) in which CeO2, B2O3 and Mg were taken as reactants. The adiabatic temperature and dynamics of SHS reactions were investigated. The SHS reaction products and leached products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The
Zhihe DOU, Ting'an ZHANG, Yan LIU, Yongnan GUO, Jicheng HE   +4 more
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Single crystal AlN fibers obtained by self-propagating high-temperature synthesis (SHS)

Acta Materialia, 1997
Single crystal AlN fibers [110] elongated up to 20 mm length and up to 40 μm diameter were obtained by self-propagating high-temperature synthesis (SHS) starting from a mixture of Al, AlN and NH4Cl under 100 atm. of N2. Two types of fibers were obtained: (i) long, thin fibers with smooth surfaces and diameter 20 μm) of “banderilla-type” having scores
J.S. Moya, J.E. Iglesias, J. Limpo, J.A. Escriña, N.S. Makhonin, M.A. Rodríguez   +5 more
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Formation mechanism of Ti2AlC under the self-propagating high-temperature synthesis (SHS) mode

Materials Research Bulletin, 2012
Abstract Ti2AlC was fabricated by the self-propagating high-temperature synthesis (SHS) technique from a compacted powder mixture consisting of Ti:Al:C = 2:1:1 (molar ratio) of mortar mixing, planetary mixing and various packing densities. A thermocouple was placed directly into the green compact body in order to monitor the combustion temperature ...
Shinobu Hashimoto, Noriko Nishina, Kiyoshi Hirao, You Zhou, Hideki Hyuga, Sawao Honda, Yuji Iwamoto   +6 more
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Coating processing by self-propagating high-temperature synthesis (SHS) using a Fresnel lens

Le Journal de Physique IV, 1999
The purpose of this work is to explore the use of Fresnel lenses in materials and coating processing via self-propagating high temperature synthesis (SHS). This is achieved by synthesis of intermetallic compounds of the Ni/Al system. Nickel aluminides offer high thermal stability, corrosion and oxidation resistance and supenor mechanical properties at ...
G. P. Rogriguez, I. García, A. J. Vázquez   +2 more
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Self-Propagating High Temperature Synthesis (SHS) of Intermetallic Compounds Titanium and Nickel Aluminides

Materials and Manufacturing Processes, 1994
Abstract The self-propagating high temperature synthesis (SHS) of titanium and nickel aluminides was investigated. Effect of experimental variables on SHS temperature, burning rate, product composition, and microhardness are discussed. The densities of the products are 70.80% of theoretical values and the microhardness of Ni3Al produced is similar to ...
H. Y. Sohn, X. Wang
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A Marco-Homogenous and Micro-Heterogeneous Model for Self-Propagating High Temperature Synthesis (SHS)

Materials Science Forum, 2005
Recently research shows that heterogeneous model is needed to explain some complex combustion behaviors in SHS. However, more heterogeneous details be considered more difficulties will be faced. A micro-heterogeneous & macro-homogeneous model is proposed in this paper based on some previous works for this problem. Combustion compact is divided into
Jin Yong Zhang, Zheng Yi Fu, Wei Ming Wang, Qing Jie Zhang   +3 more
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