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The pressing of equal channel angular pressing - parallel channel process has an effect on microstructure and mechanical properties of the composite materials. Finite element has been used for conducting pressure effect through parallel channel for knowing distribution effect pressing. The materials AA1070 and AA6061 powder matrix composite with Al2O3 nano fiber were used as reinforcement. Mechanical properties and scanning electron microscope were observed in room temperature pressure and in case where the temperatures were higher than recrystallization value. Both results were compared to determine the effectiveness of pressure on each process. The characterization of aluminum composites on the aspects and phenomena of the distribution of pressing effect on hot and cold conditions treasured by finite elements will be explained in this paper.

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firmness ( Ben Haj Said et al., 2016 ). However, it is well known that natural products also undergo quality changes and losses throughout subsequent storage in the frozen state. Physical changes, such as recrystallisation of ice, can occur during storage

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digestion. Components of starch, amylose, and amylopectin are responsible for the short-term and long-term retrogradation, respectively. Crystalline amylose was found to be the nucleus for amylopectin recrystallisation in long-term processes ( Keetels et al

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] after recrystallization. A stock solution of formaldehyde was prepared from Merck “Pro Analisi” 35% formaldehyde solution and was standardized by the method of Kolthoff and Belcher [ 13 ]. A stock solution of carbonate free sodium hydroxide was also

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Reaction Kinetics, Mechanisms and Catalysis
Authors: K. V. Novikova, M. O. Kompanets, O. V. Kushch, S. P. Kobzev, M. M. Khliestov, and I. O. Opeida

. Experimental N -hydroxyphthalimide was purchased from Fluka and used as received. Azodiisobutyronitrile (AIBN) and benzoyl peroxide (PB) were recrystallized from ethanol twice. Acetic acid was distilled over P 2 O 5 . Cumene was purified using

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redistillation or recrystallization. Triply distilled water was used for preparation of the solutions. Thiel, Schultz and Koch buffer [ 10 ], consisting of different volumes of 0.05 M oxalic acid, 0.02 M boric acid, 0.05 M succinic acid, 0.05 M sodium sulfate and

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leaching. At the same time, while Al atoms are removed and pores are formed, the recrystallization accompanied by pore plugging occurs. In this situation, the rate constant does not remain constant, and the rate constant is considered to vary inversely with

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recrystallized from water. Stock solutions of Cu(ClO 4 ) 2 and Ni(ClO 4 ) 2 have been prepared and were standardized by EDTA titration with murexide as indicator and a stock solution of sodium perchlorate was prepared and standardized gravimetrically. A stock

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filtered and dried. The crude acid obtained was recrystallized from hot water and the pure sample had a melting point of 61–62 °C. Tris(1,10-phenanthroline)iron(III) perchlorate [ 23 , 24 ] AnalaR grade ferrous ammonium

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anhydrous Na 2 SO 4 . After removal of the solvent, the pure product was obtained. This was further purified by recrystallization with EtOH. All of the compounds are known compounds. The products were isolated and identified by comparison of their physical

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