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Diffusion bonding (SPF/DB or form bonding)
Science, Maths & Technology

Diffusion bonding (SPF/DB or form bonding)

...based alloys metal-matrix composites, e.g. Al-B and Ti-B steels copper aluminium/stainless steel aluminium alloy/steel ceramic/metal, e.g. Al2O3/Mo nickel alloy/copper/stainless steel Design: Since the height and waviness of the surfaces controls the bond ratio (area of contact/area of void), surface roughness should be 0.05–0.2 µm Ra. Two, three and four sheet SPF/DB...
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Article 10 mins
Fluid and Rubber Die Forming (Guerin and Hydroform)
Science, Maths & Technology

Fluid and Rubber Die Forming (Guerin and Hydroform)

...based on the principle that rubber, when subjected to high pressure, behaves like a fluid. This means that the rubber pad distributes the pressure uniformly over the sheet blank. As the pressure increases the rubber assumes the shape of the single rigid die. The Guerin Process constrains the rubber pad. [Diagram to demonstrate 'Fluid and rubber die forming (Guerin and...
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Article 5 mins
Ceramic mould casting
Science, Maths & Technology

Ceramic mould casting

...based alloys, and gold and silver jewellery alloys. Insufficient drying of plastic moulds can lead to hydrogen pick-up in aluminium alloys, causing porosity. Refractory moulds (Shaw process) are suitable for almost all castable alloys (see lost wax process) but are usually used with high melting point alloys such as cast iron, carbon and alloy steels, and Cu/Be alloys....
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Article 5 mins
The West of Ireland: Dimensions of distinctiveness
Scotland Colleges

The West of Ireland: Dimensions of distinctiveness

...place. Explore the articles in this collection . Acknowledgements This material draws from an Open University course based on the work of Pat Jess. Jess, P. (1985) ‘Unit 17 Local Change in the West of Ireland’, in The Open University (1985) D205 Changing Britain, Changing World: geographical perspectives, Broadcast Handbook, Milton Keynes, The Open University Press....
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Article 5 mins
Peter Tuddenham On Using Systems Thinking In Practice
Society, Politics & Law

Peter Tuddenham On Using Systems Thinking In Practice

...Based Learning and Evaluation to future and current educators and teachers. From 1991 he has designed and led online programs on personal, group and organizational development. He worked in recruitment, compensation, and organization structuring for the civilian workforce of the US Army before moving to a business career in Human Resources, Issue Management and Corporate...
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Audio 15 mins
Machine translation – using online tools to improve your language teaching
Education & Development

Machine translation – using online tools to improve your language teaching

...ever-increasing importance of digital literacy and artificial intelligence, they also equip language learners with an additional employability skill. References, sources and links von Lindeiner-Stráský, K. (2022). unpublished project report ‘Web-based Machine Translation in Language Learning, Teaching, and Assessment’, Praxis-Project, The Open University 2020-2022....
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Article 5 mins
Five smart technologies helping the visually impaired
Society, Politics & Law

Five smart technologies helping the visually impaired

...based on creating worlds using high-quality visual materials, VR has been of little use to the visually impaired. Two new technologies are changing that. First is Microsoft’s virtual reality white cane. This allows visually impaired people to navigate a VR environment using a white cane which simulates the effect of the cane interacting with objects in the virtual...
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Video 5 mins
Soil could save Earth from overheating
Nature & Environment

Soil could save Earth from overheating

...based composts, and exploit a suite of more efficient practices tailored to their crops and terrain. Schemes such as Cool Farm Tool could help farmers measure and manage emissions from their own land. There would not be one big answer, but a host of varied responses. These range from better crop rotation to low tillage as opposed to deep ploughing, and from land...
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Article 10 mins