D. M. R. Taplin

Bio: D. M. R. Taplin is an academic researcher from Aston University. The author has contributed to research in topics: Creep & Grain boundary. The author has an hindex of 25, co-authored 93 publications receiving 2113 citations. Previous affiliations of D. M. R. Taplin include University College Cork & University of Cambridge.

Precipitation and aging in high-conductivity Cu–Cr alloys with additions of zirconium and magnesium

Abstract: The precipitation reactions responsible for age hardening in a high-conductivity Cu–Cr–Zr–Mg alloy have been investigated by analytical transmission electron microscopy and compared briefly with the processes that occur in simpler Cu–Cr and Cu–Cr–Mg alloys. Aging at low temperatures (400°C) results in the formation of Guinier–Preston zones. Peak hardness, obtained by aging for 24 h at 450°C, is found to be a result of the fine scale precipitation of an ordered compound, possibly of the Heusler type, with the suggested composition CrCu2(Zr, Mg). Overaging results in the formation of coarse precipitates of Cr and CU4Zr. The intergranular precipitate which forms in the Cu–Cr–Zr–Mg alloy is Cu4Zr. This phase precipitates both as discrete particles on the grain boundaries and as thin ( ~ 5 nm) continuous intergranular films.MST/89

Densification and crystallization of glass powder compacts during constant heating rate sintering

Abstract: Heating microscopy was used to study the interaction between the processes of densification and crystallization of glass powder compacts under constant heating rate sintering conditions without the application of external loads. For barium magnesium aluminosilicate (BMAS) glass powder compacts sintered between 800–1100 °C, it has been shown that the relative rates of crystallization and densification can be controlled by changing the heating rate. Samples sintered at a high heating rate of 15 K min−1 could be fully densified in the amorphous state, delaying the onset of crystallization. In the samples sintered at a low heating rate of 1 K min−1, the onset of crystallization coincided with the termination of densification at ∼ 1000 °C. Since the experiments were performed without an application of external loads, the results are applicable for the manufacturing of dense BMAS glass-ceramics via a pressureless sintering route.

Green supply‐chain management: A state‐of‐the‐art literature review

Abstract: Vol. 9 Issue 1 pp. 000‐000 There is a growing need for integrating environmentally sound choices into supply-chain management research and practice. Perusal of the literature shows that a broad frame of reference for green supply-chain management (GrSCM) is not adequately developed. Regulatory bodies that formulate regulations to meet societal and ecological concerns to facilitate growth of business and economy also suffer from its absence. A succinct classification to help academicians, researchers and practitioners in understanding integrated GrSCM from a wider perspective is needed. Further, sufficient literature is available to warrant such classification. This paper takes an integrated and fresh look into the area of GrSCM. The literature on GrSCM is covered exhaustively from its conceptualization, primarily taking a ‘reverse logistics angle’. Using the rich body of available literature, including earlier reviews that had relatively limited perspectives, the literature on GrSCM is classified on the basis of the problem context in supply chain’s major influential areas. It is also classified on the basis of methodology and approach adopted. Various mathematical tools/techniques used in literature vis-a-vis the contexts of GrSCM are mapped. A timeline indicating relevant papers is also provided as a ready reference. Finally, the findings and interpretations are summarized, and the main research issues and opportunities are highlighted.

A review of modeling approaches for sustainable supply chain management

Abstract: More than 300 papers have been published in the last 15years on the topic of green or sustainable (forward) supply chains Looking at the research methodologies employed, only 36 papers apply quantitative models This is in contrast to, for example, the neighboring field of reverse or closed-loop supply chains where several reviews on respective quantitative models have already been provided The paper summarizes research on quantitative models for forward supply chains and thereby contributes to the further substantiation of the field While different kinds of models are applied, it is evident that the social side of sustainability is not taken into account On the environmental side, life-cycle assessment based approaches and impact criteria clearly dominate On the modeling side there are three dominant approaches: equilibrium models, multi-criteria decision making and analytical hierarchy process There has been only limited empirical research so far The paper ends with suggestions for future research