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...carbon dioxide, air, or mixtures of these gases. “Plasma” consists of a mixture of neutral atoms, free electrons and positive ions. The plasma arc, which can reach temperatures of up to 28,000°C, is transferred to the workpiece, which is usually positive, where it “blows away” the molten metal. Energies of approximately 10kWh m-3 and thermal efficiencies of...

...carbon cycling in soil environments, specifically studying microbes that consume methanol. The post-PhD move to AstrobiologyOU at the Open University might seem a bit odd but the methods I am using to study microbes in extreme environments are the methods I learned during my PhD; I’m using the same methods to answer a different set of questions. My research is now split...

...carbon and low alloy steels used for pressed and deep-drawn components. A wide variety and combination of properties can be achieved depending on the process used. Strength increase from 345 to 925 MPa has been achieved in 0.5m thick mild steel pressings, giving 60% weight reduction and 75% thickness reduction. The porous, oxygen-enriched iron nitride layer produces...

...Carbon, high speed steel and abrasive or diamond coated bands are available. Several variations of bandsawing: High speed sawing: 600–1800 m min-1. Friction sawing: 450–6000 m min-1; metal softened by local heat generation. Electro-band machining: low voltage, high current across workpiece and blade causes arcing which melts metal. Blade does not touch workpiece....

...carbon fibre: 385 mm min-1 6.25 mm titanium: 125 mm min-1 13 mm mild steel: 200 mm min-1 6 mm glass: 150 mm min-1 Process has the advantage of low noise with no fumes or dust, and can be used safely in explosive environments such as the oil and mining industries. Materials: Almost any material from soft, ductile materials to high tensile alloys can be cut, providing it is...