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Dependency of microindentation hardness on solidification processing parameters and cellular spacing in the directionally solidified Al based alloys
(ELSEVIER SCIENCE SA, 2009)
Al based alloys (Al-0.1 wt.%Ti, Al-05 wt.%Ti and Al-2 wt.%Li) were prepared using metals of 99.99% high purity in the vacuum atmosphere. These alloys were directionally solidified upward with the different temperature ...
Investigation of the microhardness and the electrical resistivity of undercooled Ni-10 at.% Si alloys
(ELSEVIER SCIENCE BV, 2011)
Ni-10 at.% Si alloys (Ni and Si of purity of 99.99%) were prepared by arc melting method under argon atmosphere in a water-cooled copper hearth with a non-consumable tungsten electrode and titanium getter. Spherical-shaped ...
Microstructural, mechanical, electrical and thermal characterization of arc-melted Ni-Si and Co-Si alloys
(ELSEVIER SCIENCE BV, 2010)
This work presents the results of characterization of as solidified arc-melted Ni-Si and Co-Si alloys. The alloys of different compositions of the constitutions Ni, Co, and Si of purity of 99.99% were prepared by arc melting ...
Microstructural examination of concrete exposed to elevated temperature by using plane polarized transmitted light method
(ELSEVIER SCI LTD, 2013)
In this study, the influence of elevated temperature on the residual compressive strength and ultrasonic wave velocity of the concrete specimens has been investigated. In addition, the effect of elevated temperature on the ...
Measurements of the microhardness, electrical and thermal properties of the Al-Ni eutectic alloy
(ELSEVIER SCI LTD, 2012)
Al-5.7 wt% Ni eutectic alloy was directionally solidified upward with different temperature gradients (0.83-4.02 K/mm) at a constant growth rate (0.008 mm/s) and with different growth rates (0.008-0.483 mm/s) at a constant ...
Blended cements containing high volume of natural zeolites: Properties, hydration and paste microstructure
(ELSEVIER SCI LTD, 2012)
In this study, properties and hydration characteristics as well as paste microstructure of blended cements containing 55% by weight zeolitic tuff composed mainly of clinoptilolite mineral were investigated. Free Ca(OH)(2) ...
Investigation of the effect of composition on microhardness and determination of thermo-physical properties in the Zn-Cu alloys
(ELSEVIER SCI LTD, 2011)
Zinc-copper of (99.99%) high purity alloys were directionally solidified upward with different compositions, C-o, Zn-(0.7,1.5, 2.4 and 7.37) wt.% Cu under two different solidification conditions (G = 3.85 K/mm, V = 0.0083 ...
The influence of elevated temperature on strength and microstructure of high strength concrete containing ground pumice and metakaolin
(ELSEVIER SCI LTD, 2016)
A laboratory study is performed to evaluate the influence of elevated temperature on the strength and microstructural properties of high strength concretes (HSCs) containing ground pumice (GP), and blend of ground pumice ...
A review on micro-level modeling of solid oxide fuel cells
(PERGAMON-ELSEVIER SCIENCE LTD, 2016)
Solid oxide fuel cells (SOFCs) are ceramic based electrochemical devices operating at high temperatures and generates electricity and useful heat energy utilizing various fuels at a high efficiency. The main structure of ...
Microstructural Evolution and Mechanical Properties in Directionally Solidified Sn-10.2 Sb Peritectic Alloy at a Constant Temperature Gradient
(UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS, 2016)
The Sn-10.2 Sb (mass fraction) peritectic alloy was prepared using a vacuum melting furnace and a hot filling furnace. The samples were directionally solidified upwards at steady state conditions with a constant temperature ...
