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Binder jetting is a promising route to produce complex copper components for electronic/thermal applications. This paper aims to lay a framework for determining the effects of sintering parameters on the final microstructure of copper parts fabricated through binder jetting.

The knowledge gained from well-established powder metallurgy processes was leveraged to study the densification behaviour of a fine high-purity copper powder (D₅₀ of 3.4 µm) processed via binder jetting, by performing dilatometry and microstructural characterization. The effects of sintering parameters on densification of samples obtained with a commercial water-based binder were also explored.

Sintering started at lower temperature in cold-pressed (∼680 °C) than in binder jetted parts (∼900 °C), because the strain energy introduced by powder compression reduces the sintering activation energy. Vacuum sintering promoted pore closure, resulting in greater and more uniform densification than sintering in argon, as argon pressure stabilizes the residual porosity. About 6.9% residual porosity was obtained with air sintering in the presence of graphite, promoting solid-state diffusion by copper oxide reduction.

This paper reports the first systematic characterization of the thermal events occurring during solid-state sintering of high-purity copper under different atmospheres. The results can be used to optimize the sintering parameters for the manufacturing of complex copper components through binder jetting.

Due to the evolution of the health-care scenario and the growing role of the primary care setting, the distribution processes of health technologies will be more and more in demand in the near future. This paper aims to investigate this theme, analyzing the performance, strengths and weaknesses of the current distribution practices, with the ultimate overarching aim to improve the provision of the primary care services.

The research framework is twofold. First, a tool to monitor the economic/quantitative performance of the distribution models was designed; second, the tool was applied to measure the performance of distribution models of absorbent devices for incontinence adopted by Local Health Authorities (LHA) in Lombardy Region (Italy). Quantitative data were collected by LHAs (from 2012 to 2016) and compared through data-benchmarking. Qualitative data from interviews and focus groups complemented the outcomes.

Two main distribution models were investigated: distribution through pharmacies and home delivery. Results show that there is no winning/preferable model in terms of economic/quantitative performance and service quality level, but a counterbalanced combination of strengths and weaknesses exists. Moving from the highlighted weaknesses and building on the strengths, an alternate distribution model is proposed for testing.

The present study approaches the theme of primary care services with a holistic approach, filling a literature gap. It also provides practitioners with a tool of performance analysis and management and real data, applicable also in international contexts. The collected real-world data also gives insights on the area of the quality of care, with particular reference to the patients’ experience. As a lesson learned, policymakers and the National Healthcare Service should re-think their current distribution models/practices in the light of the highlighted criticisms and opportunities for improvement.