International Journal of Materials Engineering Innovation http://www.inderscience.com/browse/index.php?journalID=314&year=2012&vol=3&issue=1 Inderscience Publishers Ltd en-uk International Journal of Materials Engineering Innovation 1757-2754 1757-2762 © 2012 Inderscience Publishers Ltd editor@inderscience.com https://www.inderscience.com/images/files/coverImgs/ijmatei_scoverijmatei.jpg http://www.inderscience.com/browse/index.php?journalID=314&year=2012&vol=3&issue=1 http://www.inderscience.com/link.php?id=44452 Inter-industrial utilisation of solid residues for soil amendment was investigated by combining secondary steel mill slags with residuals from a pulp and paper mill. Sample analysis included mineralogical characterisation by X-ray diffraction, relevant physicochemical properties and trace element availability by the original three-stage sequential BCR extraction procedure (CH<SUB align="right">3COOH, NH<SUB align="right">2OHHCl and H<SUB align="right">2O<SUB align="right">2 + CH<SUB align="right">3COONH<SUB align="right">4) and residual fraction determination by acid digestion (USEPA 3051A). Respectively, the pseudo-total concentrations of trace elements were determined according to USEPA method 3051A. Consequently, the alkalinity of the samples (pH values 12.1-12.2) suggests significant buffering and acid neutralisation capacity with liming effect values (34.9%-35.6%, Ca-equivalents, d.w.) comparable to commercial ground limestone. This was supported by XRD, which only revealed the existence of portlandite [Ca(OH) <SUB align="right">2] an calcite [CaCO<SUB align="right">3]. Additionally, the pseudo-total concentrations of trace elements were lower than the respective limit values for EU soil improvers (2006/799/EC). However, Ba and V recovery during sequential extraction (Ba: 40.1-56.0 mgkg<SUP align="right">1</SUP>, d.w., by CH<SUB align="right">3COOH; and V: 72.2-96.5 mgkg<SUP align="right">1</SUP>, d.w., by NH<SUB align="right">2OHHCl) indicates potential phytoavailability. Secondary steel mill slags with pulp and paper mill solid residues for soil amendment: mineralogy, relevant physicochemical properties and trace element availability
Mikko Mäkelä; Hannu Nurmesniemi; Gary Watkins; Risto Pöykiö; Olli Dahl
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 1 - 16
Inter-industrial utilisation of solid residues for soil amendment was investigated by combining secondary steel mill slags with residuals from a pulp and paper mill. Sample analysis included mineralogical characterisation by X-ray diffraction, relevant physicochemical properties and trace element availability by the original three-stage sequential BCR extraction procedure (CH<SUB align="right">3COOH, NH<SUB align="right">2OHHCl and H<SUB align="right">2O<SUB align="right">2 + CH<SUB align="right">3COONH<SUB align="right">4) and residual fraction determination by acid digestion (USEPA 3051A). Respectively, the pseudo-total concentrations of trace elements were determined according to USEPA method 3051A. Consequently, the alkalinity of the samples (pH values 12.1-12.2) suggests significant buffering and acid neutralisation capacity with liming effect values (34.9%-35.6%, Ca-equivalents, d.w.) comparable to commercial ground limestone. This was supported by XRD, which only revealed the existence of portlandite [Ca(OH) <SUB align="right">2] an calcite [CaCO<SUB align="right">3]. Additionally, the pseudo-total concentrations of trace elements were lower than the respective limit values for EU soil improvers (2006/799/EC). However, Ba and V recovery during sequential extraction (Ba: 40.1-56.0 mgkg<SUP align="right">1</SUP>, d.w., by CH<SUB align="right">3COOH; and V: 72.2-96.5 mgkg<SUP align="right">1</SUP>, d.w., by NH<SUB align="right">2OHHCl) indicates potential phytoavailability.

]]> 10.1504/IJMATEI.2012.044452 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 1 - 16 Mikko Mäkelä; Hannu Nurmesniemi; Gary Watkins; Risto Pöykiö; Olli Dahl Department of Forest Products Technology, Aalto University, School of Chemical Technology, P.O. Box 16400, Tekniikantie 3, FI-00076 Aalto, Espoo, Finland. ' Stora Enso Oyj, Veitsiluoto Mill, FI-94830 Kemi, Finland. ' Department of Forest Products Technology, Aalto University, School of Chemical Technology, P.O. Box 16400, Tekniikantie 3, FI-00076 Aalto, Espoo, Finland. ' City of Kemi, Valtakatu 26, FI-94100 Kemi, Finland. ' Department of Forest Products Technology, Aalto University, School of Chemical Technology, P.O. Box 16400, Tekniikantie 3, FI-00076 Aalto, Espoo, Finland trace element availability materials engineering process industry sequential extraction soil amendment solid residue trace elements secondary steel mill slags pulp and paper mills mineralogy phytoavailability. 2011-12-25T23:20:50-05:00 3 1 1 16 2011-12-25T23:20:50-05:00 http://www.inderscience.com/link.php?id=44447 Nanocrystalline titanium dioxide (TiO<SUB align="right">2) films were deposited on glass substrates by electrophoretic deposition (EPD). Films were grown using the constant current and constant voltage methods and key EPD parameters were investigated. Anatase TiO<SUB align="right">2 powder, dissolved in deionised water with iodine and acetylacetone as dispersing agents was the colloidal suspension utilised. TiO<SUB align="right">2 particle concentration of 1 gl<SUP align="right">1</SUP> and films annealed at 100 Deposition and characterisation of titanium dioxide films formed by electrophoretic deposition
Monishka Rita Narayan; Atul Raturi
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 17 - 31
Nanocrystalline titanium dioxide (TiO<SUB align="right">2) films were deposited on glass substrates by electrophoretic deposition (EPD). Films were grown using the constant current and constant voltage methods and key EPD parameters were investigated. Anatase TiO<SUB align="right">2 powder, dissolved in deionised water with iodine and acetylacetone as dispersing agents was the colloidal suspension utilised. TiO<SUB align="right">2 particle concentration of 1 gl<SUP align="right">1</SUP> and films annealed at 100

]]> 10.1504/IJMATEI.2012.044447 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 17 - 31 Monishka Rita Narayan; Atul Raturi Division of Physics, School of Engineering and Physics, University of the South Pacific, Private Mail Bag, Laucala Campus, Suva, Fiji Islands. ' Division of Physics, School of Engineering and Physics, University of the South Pacific, Private Mail Bag, Laucala Campus, Suva, Fiji Islands nanocrystalline titanium dioxide TiO2 films electrophoretic deposition EPD dye sensitised solar cells nanotechnology. 2011-12-25T23:20:50-05:00 3 1 17 31 2011-12-25T23:20:50-05:00 http://www.inderscience.com/link.php?id=44448 Cylindrical samples of Al-2 wt pct Mg alloy and Al-8 wt pct Mg alloy were upset to 40% reduction followed by heat treatment at 200 Deformational inhomogeneity in Al-2Mg and Al-8Mg alloys microhardness study
Swami Naidu Gurugubelli; A.V.S.S.K.S. Gupta; N.R.M.R. Bhargava
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 32 - 49
Cylindrical samples of Al-2 wt pct Mg alloy and Al-8 wt pct Mg alloy were upset to 40% reduction followed by heat treatment at 200

]]> 10.1504/IJMATEI.2012.044448 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 32 - 49 Swami Naidu Gurugubelli; A.V.S.S.K.S. Gupta; N.R.M.R. Bhargava Department of Mechanical Engineering, University College of Engineering, JNTUK, Vizianagaram, Andhra Pradesh 535 003, India. ' Department of Mechanical Engineering, University College of Engineering, JNTUH Kukatpally, Hyderabad, Andhra Pradesh 500 072, India. ' Adikavi Nannaya University, Rajahmundry, Andhra Pradesh, India aluminium alloys microhardness heat treatment upsetting homogeneity materials magnesium deformation friction. 2011-12-25T23:20:50-05:00 3 1 32 49 2011-12-25T23:20:50-05:00 http://www.inderscience.com/link.php?id=44449 The role of superconductivity can be understood by the assignments of spectral features to lattice vibrations. Raman and infrared studies have contributed significantly to the explication of high Tc superconductor mechanics. In the present work, normal coordinate calculations have been carried out to study the vibrational analysis of perovskite like antiferromagnetic compound YBaCuFeO<SUB align="right">5. It is important to have knowledge of phonon frequency spectrum for the interpretation of physical properties such as thermal, elastic, infrared, etc., which can be achieved by means of theoretical models of lattice dynamics. A three-body force shell model (TBSM) which takes into account many body interactions is applied to study the lattice dynamics of high T<SUB align="right">c superconductors YBaCuFeO<SUB align="right">5. For the interpretation of infrared and Raman spectrum, the phonon frequencies at the centre of Brillouin zone are presented and vibrational assignments are discussed. The calculations yield not only the phonon frequencies at the centre, but also throughout the Brillouin zone. Theoretical studies on phonon spectra of high temperature superconductor YBaCuFeO5
A. Punitha; Sujin P. Jose; S. Mohan
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 50 - 58
The role of superconductivity can be understood by the assignments of spectral features to lattice vibrations. Raman and infrared studies have contributed significantly to the explication of high Tc superconductor mechanics. In the present work, normal coordinate calculations have been carried out to study the vibrational analysis of perovskite like antiferromagnetic compound YBaCuFeO<SUB align="right">5. It is important to have knowledge of phonon frequency spectrum for the interpretation of physical properties such as thermal, elastic, infrared, etc., which can be achieved by means of theoretical models of lattice dynamics. A three-body force shell model (TBSM) which takes into account many body interactions is applied to study the lattice dynamics of high T<SUB align="right">c superconductors YBaCuFeO<SUB align="right">5. For the interpretation of infrared and Raman spectrum, the phonon frequencies at the centre of Brillouin zone are presented and vibrational assignments are discussed. The calculations yield not only the phonon frequencies at the centre, but also throughout the Brillouin zone.

]]> 10.1504/IJMATEI.2012.044449 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 50 - 58 A. Punitha; Sujin P. Jose; S. Mohan Department of Electronics and Communication Engineering, Vickram College of Engineering, Enathi 630 561, Tamil Nadu, India. ' Department of Electronics and Communication Engineering, Vickram College of Engineering, Enathi 630 561, Tamil Nadu, India. ' Department of Mathematical and Physical Sciences, Hawassa University, P.O. Box 5, Hawassa, Ethiopia normal coordinate analysis high temperature superconductors phonon frequencies YBaCuFeO5 three-body force shell model TBSM lattice dynamics superconductivity perovskite lattice vibrations. 2011-12-25T23:20:50-05:00 3 1 50 58 2011-12-25T23:20:50-05:00 http://www.inderscience.com/link.php?id=44450 This paper discusses single and multiple characteristics optimisation of induction hardened AISI 1040 steel in rolled condition. Face centred central composite design was used for experimentation. Response surface methodology was used for modelling the responses. Desirability function in conjunction with RSM was used for the optimisation of responses. The results are validated from the existing knowledge of physical metallurgy in general. The solutions, thus developed using different practical and industrial situations, can easily be utilised for tailor-made production of the steel of desired hardness, total case depth and mean effective case depth. Quality optimisation of induction hardened parts using desirability function
Amit Kohli; Hari Singh
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 59 - 77
This paper discusses single and multiple characteristics optimisation of induction hardened AISI 1040 steel in rolled condition. Face centred central composite design was used for experimentation. Response surface methodology was used for modelling the responses. Desirability function in conjunction with RSM was used for the optimisation of responses. The results are validated from the existing knowledge of physical metallurgy in general. The solutions, thus developed using different practical and industrial situations, can easily be utilised for tailor-made production of the steel of desired hardness, total case depth and mean effective case depth.

]]> 10.1504/IJMATEI.2012.044450 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 59 - 77 Amit Kohli; Hari Singh Mechanical Engineering Department, D.A.V Institute of Engineering and Technology, 144008, India. ' Mechanical Engineering Department, National Institute of Technology, Kurukshetra 136119, India induction hardening response surface methodology RSM desirability function steel modelling case depth. 2011-12-25T23:20:50-05:00 3 1 59 77 2011-12-25T23:20:50-05:00 http://www.inderscience.com/link.php?id=44451 This study examined the potential utilisation of fly ash obtained from a coal fired thermal power station to improve the engineering properties of a residually derived lateritic soil. The evaluation involved the determination of a number of geotechnical parameters used to assess performance of stabilised earthen materials such as index properties, compaction characteristics, hydraulic conductivity, compressive strength and desiccation induced shrinkage. Soil mixtures with varying proportions of fly ash (0%-20%) were compacted at predetermined optimum moisture contents with three compactive efforts namely British Standard Light (BSL), West African Standard (WAS) and British Standard Heavy (BSH) that represent the minimum, medium and maximum efforts expected in the field. Results showed that the plasticity index (PI), dry unit weight, hydraulic conductivity and desiccation induced shrinkage were lowered on addition of fly ash. Conversely, optimum moisture content (OMC) as well as unconfined compressive strength increased. Overall, the engineering properties of the soil were enhanced thereby producing an improved construction material whose parameters are compatible with the desired values for engineering performance. Utilisation of fly ash to improve the engineering properties of lateritic soil
Agapitus Ahamefule Amadi
International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 78 - 88
This study examined the potential utilisation of fly ash obtained from a coal fired thermal power station to improve the engineering properties of a residually derived lateritic soil. The evaluation involved the determination of a number of geotechnical parameters used to assess performance of stabilised earthen materials such as index properties, compaction characteristics, hydraulic conductivity, compressive strength and desiccation induced shrinkage. Soil mixtures with varying proportions of fly ash (0%-20%) were compacted at predetermined optimum moisture contents with three compactive efforts namely British Standard Light (BSL), West African Standard (WAS) and British Standard Heavy (BSH) that represent the minimum, medium and maximum efforts expected in the field. Results showed that the plasticity index (PI), dry unit weight, hydraulic conductivity and desiccation induced shrinkage were lowered on addition of fly ash. Conversely, optimum moisture content (OMC) as well as unconfined compressive strength increased. Overall, the engineering properties of the soil were enhanced thereby producing an improved construction material whose parameters are compatible with the desired values for engineering performance.

]]> 10.1504/IJMATEI.2012.044451 International Journal of Materials Engineering Innovation, Vol. 3, No. 1 (2012) pp. 78 - 88 Agapitus Ahamefule Amadi Department of Civil Engineering, Federal University of Technology, Minna, 920001, Niger State, Nigeria fly ash utilisation geotechnical properties lateritic soil pozzolanic reaction stabilisation thermal power stations coal fired power stations moisture content compressive strength. 2011-12-25T23:20:50-05:00 3 1 78 88 2011-12-25T23:20:50-05:00