Cold sintering is an emerging technology that permits densification of ceramics, ceramic/polymer and ceramic/metal composites at temperatures as low as 100 degrees C. A transient liquid is added to the ceramic powder which is then pressed and heated. Particle-sliding, dissolution and re-precipitation result in densification and the low temperatures enable co-sintering with polymers, metals and dissimilar ceramics. Metallised-polymer printed circuit boards (e.g. FR4 PCBs) are the basis of modern electronics. The metallisation is partially etched away and the required functional and passive components are soldered into position using 'pick and place' technology. Ceramic components such as varistors, thermistors and patch antennas are manufactured separately at high temperatures (>1100 degrees C) and are assembled on the PCB. Here, we propose a radically different approach in which functional ceramics for the fabrication of components are directly deposited/integrated onto the PCB through a cold sintering process at <150 degrees C, reducing the need for energy intensive manufacturing of separate ceramic components. The overall aim is to develop a disruptive technology that reduces both the cost and energy involved in the fabrication of printed circuits for modern consumer electronics.

The UK has one of the oldest building stocks in Europe. In England, around a quarter of this stock is of solid brickwork construction. Every year, thousands of such buildings experience structural distress due to seasonal and excavation-induced ground movements. To understand and manage the impact of ground movements on these historic assets, an in-depth knowledge of their materials is necessary. Standard techniques for characterising the mechanical properties of brick masonry materials require extensive sampling and destructive testing. As a result, these techniques are rarely applied to existing buildings. In-situ testing and characterisation of materials is a promising alternative. However, in their current form, standard in-situ tests provide limited information on material properties. The MINT project aims to develop a minor-destructive in-situ testing method to identify the key macro-scale deformability and strength parameters of historic brick masonry materials. This method will combine unconventional flat jack testing with unambiguous Digital Image Correlation strain measurements and rapid Virtual Fields Method algorithms to overcome the limitations of standard material characterisation techniques. It will deliver a step change in our ability to collect detailed mechanical information on brick masonry materials and unlock the potential of numerical simulations to reliably assess structural response. It is envisioned that this new capability will also enable more informed decisions on retrofit and repair. In the longer term, the developments from MINT will contribute to improve productivity in the construction sector, and the welfare of the general public.

The UK Foundation Industries (Glass, Metals, Cement, Ceramics, Bulk Chemicals and Paper), are worth £52B to the UK economy, produce 28 million tonnes of materials per year and account for 10% of the UK total CO2 emissions. These industries face major challenges in meeting the UK Government's legal commitment for 2050 to reduce net greenhouse gas emissions by 100% relative to 1990, as they are characterised by highly intensive use of both resources and energy. While all sectors are implementing steps to increase recycling and reuse of materials, they are at varying stages of creating road maps to zero carbon. These roadmaps depend on the switching of the national grid to low carbon energy supply based on green electricity and sustainable sources of hydrogen and biofuels along with carbon capture and storage solutions. Achievement of net zero carbon will also require innovations in product and process design and the adoption of circular economy and industrial symbiosis approaches via new business models, enabled as necessary by changes in national and global policies. Additionally, the Governments £4.7B National Productivity Investment Fund recognises the need for raising UK productivity across all industrial sectors to match best international standards. High levels of productivity coupled with low carbon strategies will contribute to creating a transformation of the foundation industry landscape, encouraging strategic retention of the industries in the UK, resilience against global supply chain shocks such as Covid-19 and providing quality jobs and a clean environment. The strategic importance of these industries to UK productivity and environmental targets has been acknowledged by the provision of £66M from the Industrial Strategy Challenge Fund to support a Transforming Foundation Industries cluster. Recognising that the individual sectors will face many common problems and opportunities, the TFI cluster will serve to encourage and facilitate a cross sectoral approach to the major challenges faced. As part of this funding an Academic Network Plus will be formed, to ensure the establishment of a vibrant community of academics and industry that can organise and collaborate to build disciplinary and interdisciplinary solutions to the major challenges. The Network Plus will serve as a basis to ensure that the ongoing £66M TFI programme is rolled out, underpinned by a portfolio of the best available UK interdisciplinary science, and informed by cross sectoral industry participation. Our network, initially drawn from eight UK universities, and over 30 industrial organisations will support the UK foundation industries by engaging with academia, industry, policy makers and non-governmental organisations to identify and address challenges and opportunities to co-develop and adopt transformative technologies, business models and working practices. Our expertise covers all six foundation industries, with relevant knowledge of materials, engineering, bulk chemicals, manufacturing, physical sciences, informatics, economics, circular economy and the arts & humanities. Through our programme of mini-projects, workshops, knowledge transfer, outreach and dissemination, the Network will test concepts and guide the development of innovative outcomes to help transform UK foundation industries. The Network will be inclusive across disciplines, embracing best practice in Knowledge Exchange from the Arts and Humanities, and inclusive of the whole UK academic and industrial communities, enabling access for all to the activity programme and project fund opportunities.

The Transforming the Foundation Industries Challenge has set out the background of the six foundation industries; cement, ceramics, chemicals, glass, metals and paper, which produce 28 Mt pa (75% of all materials in our economy) with a value of £52Bn but also create 10% of UK CO2 emissions. These materials industries are the root of all supply chains providing fundamental products into the industrial sector, often in vertically-integrated fashion. They have a number of common factors: they are water, resource and energy-intensive, often needing high temperature processing; they share processes such as grinding, heating and cooling; they produce high-volume, often pernicious waste streams, including heat; and they have low profit margins, making them vulnerable to energy cost changes and to foreign competition. Our Vision is to build a proactive, multidisciplinary research and practice driven Research and Innovation Hub that optimises the flows of all resources within and between the FIs. The Hub will work with communities where the industries are located to assist the UK in achieving its Net Zero 2050 targets, and transform these industries into modern manufactories which are non-polluting, resource efficient and attractive places to be employed. TransFIRe is a consortium of 20 investigators from 12 institutions, 49 companies and 14 NGO and government organisations related to the sectors, with expertise across the FIs as well as energy mapping, life cycle and sustainability, industrial symbiosis, computer science, AI and digital manufacturing, management, social science and technology transfer. TransFIRe will initially focus on three major challenges: 1 Transferring best practice - applying "Gentani": Across the FIs there are many processes that are similar, e.g. comminution, granulation, drying, cooling, heat exchange, materials transportation and handling. Using the philosophy Gentani (minimum resource needed to carry out a process) this research would benchmark and identify best practices considering resource efficiencies (energy, water etc.) and environmental impacts (dust, emissions etc.) across sectors and share information horizontally. 2 Where there's muck there's brass - creating new materials and process opportunities. Key to the transformation of our Foundation Industries will be development of smart, new materials and processes that enable cheaper, lower-energy and lower-carbon products. Through supporting a combination of fundamental research and focused technology development, the Hub will directly address these needs. For example, all sectors have material waste streams that could be used as raw materials for other sectors in the industrial landscape with little or no further processing. There is great potential to add more value by "upcycling" waste by further processes to develop new materials and alternative by-products from innovative processing technologies with less environmental impact. This requires novel industrial symbioses and relationships, sustainable and circular business models and governance arrangements. 3 Working with communities - co-development of new business and social enterprises. Large volumes of warm air and water are produced across the sectors, providing opportunities for low grade energy capture. Collaboratively with communities around FIs, we will identify the potential for co-located initiatives (district heating, market gardening etc.). This research will highlight issues of equality, diversity and inclusiveness, investigating the potential from societal, environmental, technical, business and governance perspectives. Added value to the project comes from the £3.5 M in-kind support of materials and equipment and use of manufacturing sites for real-life testing as well as a number of linked and aligned PhDs/EngDs from HEIs and partners This in-kind support will offer even greater return on investment and strongly embed the findings and operationalise them within the sector.

The conditions in which materials are required to operate are becoming ever more challenging. Operating temperatures and pressures are increasing in all areas of manufacture, energy generation, transport and environmental clean-up. Often the high temperatures are combined with severe chemical environments and exposure to high energy and, in the nuclear industry, to ionising radiation. The production and processing of next-generation materials capable of operating in these conditions will be non-trivial, especially at the scale required in many of these applications. In some cases, totally new compositions, processing and joining strategies will have to be developed. The need for long-term reliability in many components means that defects introduced during processing will need to be kept to an absolute minimum or defect-tolerant systems developed, e.g. via fibre reinforcement. Modelling techniques that link different length and time scales to define the materials chemistry, microstructure and processing strategy are key to speeding up the development of these next-generation materials. Further, they will not function in isolation but as part of a system. It is the behaviour of the latter that is crucial, so that interactions between different materials, the joining processes, the behaviour of the different parts under extreme conditions and how they can be made to work together, must be understood. Our vision is to develop the required understanding of how the processing, microstructures and properties of materials systems operating in extreme environments interact to the point where materials with the required performance can be designed and then manufactured. Aligned with the Materials Genome Initiative in the USA, we will integrate hierarchical and predictive modelling capability in fields where experiments are extremely difficult and expensive. The team have significant experience of working in this area. Composites based on 'exotic' materials such as zirconium diborides and silicon carbide have been developed for use as leading edges for hypersonic vehicles over a 3 year, DSTL funded collaboration between the 3 universities associated with this proposal. World-leading achievements include densifying them in <10 mins using a relatively new technique known as spark plasma sintering (SPS); measuring their thermal and mechanical properties at up to 2000oC; assessing their oxidation performance at extremely high heat fluxes and producing fibre-reinforced systems that can withstand exceptionally high heating rates, e.g. 1000oC s-1, and temperatures of nearly 3000oC for several minutes. The research planned for this Programme Grant is designed to both spin off this knowledge into materials processing for nuclear fusion and fission, aerospace and other applications where radiation, oxidation and erosion resistance at very high temperatures are essential and to gain a deep understanding of the processing-microstructure-property relations of these materials and how they interact with each other by undertaking one of the most thorough assessments ever, allowing new and revolutionary compositions, microstructures and composite systems to be designed, manufactured and tested. A wide range of potential crystal chemistries will be considered to enable identification of operational mechanisms across a range of materials systems and to achieve paradigm changing developments. The Programme Grant would enable us to put in place the expertise required to produce a chain of knowledge from prediction and synthesis through to processing, characterisation and application that will enable the UK to be world leading in materials for harsh environments.