P.K. Kirner, P. Janschek, D. Schubart and K. Borgschulte
Thyssen Umformtechnik Turbinenkomponenten (TUT) in Remscheid is a supplier of turbine components for landbase turbines and for aero‐engines. Customers in the aerospace and…
Abstract
Thyssen Umformtechnik Turbinenkomponenten (TUT) in Remscheid is a supplier of turbine components for landbase turbines and for aero‐engines. Customers in the aerospace and landbase turbine business strive for reductions in costs and weight as well as for the improvement of operating temperatures in order to increase the efficiency of their engines. Next to short‐term activities like continuous improvement for cost reduction, TUT carries out research work as a long‐term investment. The research activities at TUT are numerous and range from the simulation of forging operations to the qualification of advanced materials. Various examples are presented.
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Michael von Kutzschenbach and Carl Brønn
The co‐orientation model is used as a vehicle for framing the perceptions of different stakeholder groups. This study aims to operationalize the principles of sustainable…
Abstract
Purpose
The co‐orientation model is used as a vehicle for framing the perceptions of different stakeholder groups. This study aims to operationalize the principles of sustainable development in the chain‐of‐custody and measure two selected stakeholder groups' perceptions of their importance.
Design/methodology/approach
The co‐orientation model provides guidance for improving communications and stakeholder relationships by identifying different co‐orientation states of the communicating parties. The implications for the development of effective sustainability communication strategies for organizations are discussed.
Findings
Sustainability communications requires a systematic approach in which all the communication activities are directed toward achieving increased understanding between the organization and its relevant stakeholders about the issues. The co‐orientation model enables the identification of unique initiatives to overcome the communication problems caused by the different co‐orientation states. This insight can be utilized by communication managers to fine‐tune their organization's communication strategy to be more sensitive to the specific requirements of the communication situation. Some of the recommendations to manage the communication process include assumption surfacing, orgainzational reflection, improved stakeholder management and dialogue.
Originality/value
The co‐orientation model is a quite complex concept. This study tries to use the model in a concret case and develops different approaches for improving communications and stakeholder relationships by identifying different co‐orientation states of the communicating parties.
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Rasiha Nefise Mutlu, Ayşe Nur Acar and Ahmet Murat Gizir
Lightweight, durable and economical materials production has gained considerable importance according to the needs of developing technology. The purpose of this paper is to…
Abstract
Purpose
Lightweight, durable and economical materials production has gained considerable importance according to the needs of developing technology. The purpose of this paper is to develop an new aluminum alloy by powder metalurgy.
Design/methodology/approach
Powder metallurgy, which provides controllably on desired end product, method was applied. Aluminum alloy was created with Al, Zn, Mg, Cu powders and 1.5% Na2[B4O5(OH)4].8H2O added. It was pressed under high pressure and sintered at 600 °C under N2 gas atmosphere. Density, hardness behaviors and thermal properties were determined. Surfaces and crystal structures of samples were characterized.
Findings
The addition of borax made easier grains coming to together, acting as binders and the AlB2 crystal phase was formed. It was also observed that MgZn2, Al2CuMg phases were formed. In this way, the pores between the particles of the material were reduced from 35% to 5% total porosity and the hardness of the material was increased 29 N/mm2 to 45 N/mm2 (Brinell Hardness, HB). The surface properties improved and the hydrophobicity of the surface (from 63° to 102° contact angle with borax) increased. Thus, the heat transfer among atoms get easier and the borax addition decreased specific heat capacity and enthalpy of aluminum–borax samples. This situation was also simulated with the heat transfer module of COMSOL. As result, the energy required reduced. In the other word, sintering process occurred at low temperature and more efficient.
Originality/value
New aluminum alloy has been created from different amounts of Zn, Mg, Cu elemental powders. In addition to literature, relationship of borax and aluminum and other alloying elements on the mechanical, thermophysical and surface properties of new obtained aluminum alloy has been investigated.
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This study aims to introduce the journal and its purpose.
Abstract
Purpose
This study aims to introduce the journal and its purpose.
Design/methodology/approach
This study reviews a variety of issues to show the kind of research which is relevant to the journal and the approaches which can be used.
Findings
This study shows the great need for research in the ways in which technological development is needed in order to address the issues of sustainability.
Practical implications
These can be many and diverse.
Originality/value
As the introductory chapter for this new journal its purpose is unique.