Search
Now showing items 21-30 of 32
Effect of Na2SO4 and Fe2(SO4)3 on the oxidation behaviour of AISI-303 Alloy at 900°
(Africa Journals Online, 1993)
The effects of NajS04 and Fe2(S04)3 coatings on the oxidation behaviour of AISI-303 alloy at 900° has been studied in flowing air. The coated samples were oxidised for a period up to 24 hr. The oxidation rate increased ...
Effects of magnesium sulfate attack on ordinary portland cement (OPC) mortars
(Portuguese Electrochemical Society, 2008)
The chemical and mineralogical compositions in Ordinary Portland Cement (OPC) were
determined and cement which is low of C3A is more easily exposed to sulfate environment. The relation between physical strength of mortars ...
Oxidation behavior of SAE-1053 alloy in presence of seawater
(INSInet Publication, 2009-01)
The oxidation behavior of steel SAE-1053 alloy were investigated in presence of seawater at atmospheric condition. The rate of corrosion was varied with the water movements and the aeration. The scale morphologies were ...
Effects of elevated temperatures on the thermal behavior and mechanical performance of fly ash geopolymer paste, mortar and lightweight concrete
(Elsevier, 2014-01)
This paper reports a comparative study of the influence of elevated temperature on geopolymer paste, mortars and lightweight aggregate geopolymer concrete (LWAGC) systems made by using fly ash (FA) as only source material. ...
Microstructure study on optimization of high strength fly ash based geopolymer
(Trans Tech Publications, 2012)
The compressive strength and microstructural characteristics of fly ash based geopolymer with alkaline activator solution were investigated. The sodium hydroxide and sodium silicate were mixed together to form an alkaline ...
Effect of Laser Energy on the Structure of Ni46–Ti50–Cu4 Shape-Memory Alloy
(Universiti Malaysia Perlis (UniMAP), 2018-10)
The structural and physical properties of nickel–titanium–copper shape-memory alloy and the effect of laser irradiation on the alloy were investigated in this study. The alloy was prepared using the powder metallurgy method. ...
Characterization of Musaceae and Saccharum Officinarum Cellulose Fibers for Composite Application
(Universiti Malaysia Perlis (UniMAP), 2019-04)
This paper presents experimental results on the effect of alkalis such as Potassium
Hydroxide (KOH) and Sodium Hydroxide (NaOH) on morphological changes, physical, heat
resistance, chemical, and tensile properties of the ...
Microstructure study on volcano ash geopolymer aggregate at different sintering temperature
(Trans Tech Publications, 2014)
Recent research shows that the by-product materials such as fly ash can be used as raw material in producing aggregates and lightweight aggregates. The usage of this material can improve the quality of the aggregates ...
The effect of Ti on physical properties of Fe2O3 thin films for gas sensor applications
(Universiti Malaysia Perlis (UniMAP), 2020-04)
Hematite (Fe2O3) and titanium (1 wt% and 3 wt%) doped Fe2O3 were prepared onto glass and p-type silicon wafer using the pulsed laser deposition technique. X-ray diffraction analysis indicates that samples of pure and ...
Comparison of original and sintered LUSI mud from East Java, Indonesia as raw material for making a geopolymer
(American Scientific Publishers, 2013-01)
This paper presents the characterization of LUSI mud from East Java, Indonesia, as a potential raw material for making a geopolymer. Two types of LUSI mud were analyzed, i.e., original LUSI mud and LUSI mud that had been ...