https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46777 Wed 30 Nov 2022 13:14:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43694 Wed 28 Sep 2022 09:33:51 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19832 Wed 27 Jul 2022 13:50:36 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31945 Presented at the 12th International Conference on Diffusion in Solids and Liquids (DSL-2016), 26-30 June 2016, Split, Croatia] regarding the direction of thermotransport in Al-rich liquid Ni-Al alloys. Moreover, the predicted values of the reduced heat of transport (the quantity which explicitly characterizes both the magnitude and direction of thermotransport) in Ni-Al melts, reveal fairly weak composition dependence while being practically independent of temperature at all. Accordingly, in the presence of a temperature gradient, our simulation results for the models of liquid Ni₂₅Al₇₅, Ni₅₀Al₅₀ and Ni₇₅Al₂₅ alloys predict consistently Ni and Al to migrate to the cold and hot ends, respectively. Meanwhile, the highest value, about 1.1 ± 0.1 eV, of the reduced heat of transport is observed for Ni₅₀Al₅₀ alloy model and it slightly decreases towards Al-rich and Ni-rich compositions.]]> Wed 11 Apr 2018 18:28:27 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3276 Wed 11 Apr 2018 16:54:05 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3236 Wed 11 Apr 2018 16:40:52 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26563 Wed 11 Apr 2018 16:03:01 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3240 Wed 11 Apr 2018 15:53:01 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3232 Wed 11 Apr 2018 15:36:28 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3233 Wed 11 Apr 2018 14:16:44 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11478 Wed 11 Apr 2018 13:57:13 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4535 Wed 11 Apr 2018 13:47:31 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:25653 Wed 11 Apr 2018 12:46:18 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4413 Wed 11 Apr 2018 10:11:57 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:15488 Wed 11 Apr 2018 10:03:41 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:8239 Wed 11 Apr 2018 09:46:23 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3277 Wed 11 Apr 2018 09:45:05 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46729 Tue 29 Nov 2022 12:02:24 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37921 Tue 29 Jun 2021 14:47:44 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37920 Tue 29 Jun 2021 14:41:02 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37919 Tue 29 Jun 2021 14:26:51 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24576 Tue 28 May 2019 16:04:42 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:15525 Tue 24 Aug 2021 14:38:53 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37905 −3. Microstructural studies confirmed that no relevant chemical reaction occurred within the foam, in particular in the vicinity of the particle-matrix interfaces. The mechanical properties of the produced FG-MSF were evaluated using quasi-static compression testing. The results showed that the deformation mechanism of the FG-MSF is a mixed mode and varies between the two different filler layers. The energy absorption of the FG-MSF sample was increased compared to uniform syntactic foams containing only a single particle filler.]]> Tue 22 Jun 2021 18:36:18 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37904 −3. As-cast and solution heat-treated samples were tested to investigate the compressive properties of the ZA27 syntactic foam. To this end, quasi-static compression tests were conducted. In addition, microstructural analysis of the as-cast and heat-treated syntactic foams was carried out using scanning electron microscopy. The results indicate that the heat treatment alters the microstructure of the ZA27 alloy matrix from a multiphase dendrite to a spheroidized microstructure with improved ductility. Moreover, the heat treatment considerably enhances the energy absorption and plateau stress (σ_pl) of the syntactic foam. Optical analysis of the syntactic foams under compression shows that the dominant deformation mechanism of the as-cast foams is brittle fracture. In comparison, the heat-treated samples undergo a more ductile deformation.]]> Tue 22 Jun 2021 18:29:06 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48571 0. On the other hand, for the total and Faber-Ziman partial structure factors, good agreement is observed only for q values outside the limit q->0. In addition, a similarity between the shapes of the thermodynamic factor composition dependence and the shape of the liquidus lines in both Ni-Al and Cu-Ag liquid alloys is noted. We highlight the significance of the presented computational and experimental study for developing and testing various models and frameworks.]]> Tue 21 Mar 2023 16:12:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48558 Tue 21 Mar 2023 15:38:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41986 Tue 16 Aug 2022 15:55:25 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46334 Tue 15 Nov 2022 12:48:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34939 a- and c-directions. The raw data for the heat current autocorrelation function is analysed to determine the structure of the lattice thermal conductivity. It is revealed that the lattice thermal conductivity of the TiO₂ polymorphs can be decomposed into three contributions due to the acoustic short-range and long-range phonon and optical phonon modes. These three contributions can be presented in the form of simple kinetic formulae consisting of the products of the heat capacity, the square of the average phonon velocity and the average relaxation time of the acoustic short- and long-range phonon and optical phonon modes. In particular, it is shown that the average phonon velocities of the acoustic short- and long-range phonon and optical phonon modes are approximately equal to each other and can be expressed through the second-order fluctuations of the heat current vector. The effects of different simulation cell sizes at different temperatures on the lattice thermal conductivity are also investigated. Finally, the results from this work are compared with the experimental data and good agreement is found.]]> Tue 13 Apr 2021 09:30:53 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41316 Tue 07 Nov 2023 11:57:19 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42875 2) systems. Important findings of the present investigation show that small differences in composition profiles may lead to large differences in the interdiffusion coefficients. In addition, the newly developed approach is successfully applied to experimental results for the Cu-Ni-Zn alloys annealed at 775 °C for 48 h.]]> Tue 06 Sep 2022 10:13:27 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35236 -3. The results show that no chemical reaction occurred between the AZ91 matrix and the activated carbon particles. The mechanical properties of the foam were evaluated under quasi-static compression loading conditions, and showed a consistent trend for the energy absorption of the fabricated AZ91-AC syntactic foams. The deformation mechanism of samples was a brittle fracture mode with the formation of shear bands during the fracture of all samples.]]> Tue 02 Jul 2019 15:14:51 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39964 Thu 30 Jun 2022 16:35:31 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52130 Thu 28 Sep 2023 15:10:57 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52101 Thu 28 Sep 2023 14:49:07 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11 Thu 25 Jul 2013 09:10:12 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36166 0.5Ni alloy [1, 2]. We successfully address these quasi-binary interdiffusion experiments analytically by applying the above random alloy diffusion kinetics formalisms for the case of CoCrFeMn_0.5Ni in order to extract self-diffusion coefficients. This success now suggests that the quasi-binary variation of a standard interdiffusion set-up should be used more widely for diffusion studies in multicomponent alloys, especially HEAs.]]> Thu 20 Feb 2020 14:45:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48854 Thu 13 Apr 2023 09:53:04 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42736 Thu 01 Jun 2023 12:17:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46801 Thu 01 Dec 2022 10:47:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7096 Sat 24 Mar 2018 10:46:25 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7765 Sat 24 Mar 2018 08:41:56 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7720 Sat 24 Mar 2018 08:41:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:8232 Sat 24 Mar 2018 08:40:38 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7263 Sat 24 Mar 2018 08:33:49 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12358 Sat 24 Mar 2018 08:18:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12357 Sat 24 Mar 2018 08:18:31 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:9886 Sat 24 Mar 2018 08:12:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10230 Sat 24 Mar 2018 08:11:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10232 Sat 24 Mar 2018 08:11:25 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10233 Sat 24 Mar 2018 08:11:25 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12116 Sat 24 Mar 2018 08:11:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12115 Sat 24 Mar 2018 08:11:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18160 Sat 24 Mar 2018 08:04:38 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17431 b structure of molybdenum disilicide are calculated by a direct Monte Carlo simulation technique. Correlation factors for Si diffusion on its sublattice are compared with literature values that were calculated using a more complicated Monte Carlo method based on the matrix approach. It is shown that there is no need for this complicated approach and that the direct Monte Carlo simulation technique gives highly accurate correlation factors. Correlation factors and anisotropy ratios of vacancy-mediated diffusion in both sublattices are deduced and compared with experimental data. Tracer correlation in the tetragonal direction is shown to contribute 0.40 eV (i.e. over 55%) of the migration energy of the corresponding Si diffusivity. Two possible jump rates for Si diffusion are separately estimated. Mo diffusion correlation factors are calculated using the direct Monte Carlo technique. A comparison with experiment is made and the ratio of two possible jump rates is also estimated.]]> Sat 24 Mar 2018 08:01:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17348 Sat 24 Mar 2018 08:01:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20098 −1, to minimise secondary CO₂ emissions generated from the thermal activation of serpentinite. A CO₂ penalty of about 7% yields 0.93 net tonne of available active serpentine per tonne of serpentinite feedstock. The cost for serpentinite heat activation for this practical heating strategy amounts to A$ 1.25 per tonne of available active serpentine.]]> Sat 24 Mar 2018 08:00:07 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17765 Sat 24 Mar 2018 07:57:29 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19838 Sat 24 Mar 2018 07:57:04 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19883 .₅Pd₂_.₃Cu₂₆_.₉Si₁₆_.₃ can be united using this structural model. This model may be useful for the interpretation of surface structure of other liquid alloys with a high glass forming ability. In addition, it suggests the possibility of guiding the design of the surface coating of solid containers for the stabilization of undercooled liquids.]]> Sat 24 Mar 2018 07:56:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19885 Sat 24 Mar 2018 07:56:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21765 Sat 24 Mar 2018 07:53:07 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18823 Sat 24 Mar 2018 07:51:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18556 Sat 24 Mar 2018 07:50:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:5252 Sat 24 Mar 2018 07:46:36 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:6655 Sat 24 Mar 2018 07:46:09 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:70 Sat 24 Mar 2018 07:42:09 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:63 Sat 24 Mar 2018 07:42:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26345 Sat 24 Mar 2018 07:35:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:25821 Sat 24 Mar 2018 07:34:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28686 T⁻¹, following an exponent close to -1.4 in agreement with previous calculations on the Ar model. Phonon thermal conductivity of Cu is found to be about one order of magnitude higher than Ar. The phonon contribution to the total thermal conductivity of Cu can be estimated to be about 0.5% at 1300 K and about 10% at 90 K.]]> Sat 24 Mar 2018 07:30:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26671 Sat 24 Mar 2018 07:26:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26706 Sat 24 Mar 2018 07:26:20 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30178 50Al₅₀ melt with the embedded-atom method potential developed in [G.P. Purja Pun, Y. Mishin, Phil. Mag., 2009, 89, 3245]. The principal objective of the work is to quantitatively characterise and analyse thermotransport in the system, i.e. diffusion driven by a temperature gradient. In addition, direct phenomenological coefficients for mass and thermal transport are also evaluated and analysed in the process. Furthermore, the results obtained are compared with previously published data for a different model of Ni₅₀Al₅₀ melt with an alternative embedded-atom method potential for the alloy as well as with experiment where possible. It is found that both potentials are able to consistently predict both direct transport coefficients over a wide temperature range. However, these two potentials are found to be inconsistent in characterising the cross-coupled heat and mass transport, predicting even different directions (sign) of the heat of thermotransport. The origin of this difference is discussed in the paper in detail.]]> Sat 24 Mar 2018 07:26:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27066 Sat 24 Mar 2018 07:25:19 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:23332 Sat 24 Mar 2018 07:15:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50639 Mon 31 Jul 2023 16:27:54 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43595 Mon 26 Sep 2022 14:44:43 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49587 Mon 22 May 2023 12:29:01 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44527 50Al₅₀ melt under high pressures. While the tracer diffusion coefficients at the equilibrium state predicted by Green-Kubo and the Einstein equations follow the Arrhenius relationship and agree well with the experimental and theoretical results, a linear relationship between the logarithm of tracer diffusion coefficients and the external pressure is addressed in term of an activation volume modified Arrhenius relations. It is understood that the autocorrelation velocity functions (VACF) characterizes the capacity of an atom memorizing the velocity, which has also been considered as one of important approaches revealing thermodynamics, kinetics and structure relaxation dynamics of melts. The onset of the negative region of VACF is in line with the plateau of the meaning square displacement representing the cage effect of the system. The initial damping oscillations of VACFs are due to the momentum relaxation caused by the collision between the tagged atoms and its neighbor ones while the subsequent rises result from the energy relaxation. This work provides an insight into the physical factors controlling these dynamic behaviors under extreme conditions of Ni-Al, which could be extended to the other advanced materials.]]> Mon 17 Oct 2022 09:38:37 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40417 Mon 11 Jul 2022 14:44:49 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45841 21.5Al_78.5 melt (only qualitative result is available so far).]]> Mon 07 Nov 2022 14:03:09 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33283 Fri 28 Sep 2018 15:47:22 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47755 Fri 27 Jan 2023 10:17:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37955 Fri 17 Nov 2023 11:42:01 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53023 Fri 17 Nov 2023 11:30:04 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49148 Fri 05 May 2023 12:14:03 AEST ]]>