The objective of IRP1 is to provide knowledge and tools to evaluate and to lower environmental impacts of architectured materials, from raw material extraction to final disposal. The effective benefits of the proposed strategies will be quantified using life-cycle assessment (LCA). The experience developed in CEMAM 1.0 in terms of material durability will help to implement eco-design strategies. To this end, IRP1 is organized along three connected axes: Eco-efficiency, Second-lives and Recycling.
• Eco-efficiency : The objective is to improve elaboration processes of architectured materials in order to limit their environmental impacts. For example, in powder bed AM technologies, non-melted powders can only be recovered a limited number of cycles due to progressive changes in shape, detrimental to the process. Therefore, demonstrating the use of not perfectly spherical powders would be an important lever to raise the eco-efficiency of such technologies.
• Second lifes : The second-life axis will explore strategies for saving the architecturation value until the end-of-life of products. Here, the main idea is to retain as much as possible of the efforts and energy already involved in architecturation of materials by their reuse in another life-cycle. To this aim, this axis will take advantage of the accumulated knowledge and of the characterisation and elaboration facilities of the CEMAM community to characterise failure modes and to provide effective de-architecturation processes to repair or repurpose products.
• Recycling : The aim is to limit the environmental impact of recycling procedures, by use of innovative systems, such as Aqueous Biphasic Systems (ABS), which do not use Volatile Organic Compounds and are mainly composed of water (up to ca. 60wt% of H2O).