Browsing by Author "Comley, Paul"

Browsing by Author "Comley, Paul"

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  • Brittle ductile transition during diamond turning of single crystal silicon carbide 
    Goel, Saurav; Luo, Xichun; Comley, Paul; Reuben, Robert L.; Cox, Andrew (Elsevier Science B.V., Amsterdam., 2013-02-28)
    In this experimental study, diamond turning of single crystal 6H-SiC was performed at a cutting speed of 1 m/sec on an ultra precision diamond turning machine (Moore Nanotech 350 UPL) to elucidate the microscopic origin ...
  • A comparison of polymer film and glass collectors for concentrating solar power 
    Sansom, Christopher L.; Comley, Paul; Bhattacharyya, Debabrata; Macerol, Nastja (Elsevier, 2014-06-02)
    This paper describes work to compare the optical properties and surface texture of glass and polymer film collectors. We also present the results of experiments designed to simulate collector cleaning processes (both contact ...
  • Form measurement and durability of mirror surfaces for concentrating solar power applications 
    King, Peter (Cranfield University, 2014-11)
    Concentrating solar power systems currently have a high capital cost when compared with other energy generating systems. The solar energy is captured in the form of thermal energy rather than directly electrical, which ...
  • Grinding metre scale mirror segments for the E-ELT ground based telescope 
    Comley, Paul; Morantz, Paul; Shore, Paul; Tonnellier, Xavier (Technische Rundschau, Hallwag Publishers; 1999, 2011-04-21)
    The next generation of ground based telescopes require many hundreds of metre scale off-axis mirrors. In this paper the grinding of a 1.45m scale Zerodur® mirror segment for the European Extremely Large Telescope (E-ELT) ...
  • Grinding processes and their effects on surface integrity 
    Comley, Paul (Cranfield University, 2005-03)
    The introduction of high performance grinding machines in combination with the latest superabrasive technology has the potential to impact significantly on existing process chains. The aim of the research was to look at ...
  • Photogrammetry for concentrating solar collector form measurement, validated using a coordinate measuring machine 
    King, Peter; Sansom, Christopher L.; Comley, Paul (MDPI, 2019-12-25)
    Concentrating solar power systems currently have a high capital cost when compared with other energy generating systems. The solar energy is captured in the form of thermal energy rather than direct electrical, which is ...
  • Precision grinding for rapid fabrication of segments for extremely large telescopes using the Cranfield BoX 
    Tonnellier, Xavier; Morantz, Paul; Shore, Paul; Comley, Paul (International Society for Optical Engineering; 1999, 2012-07-11)
    An ultra precision large optics grinding machine, BoX®, was developed and produced at Cranfield University. BoX® offers a rapid and economic solution for grinding large off-axis aspherical and free-form optical components. ...
  • Predicting the effects of sand erosion on collector surfaces in CSP plants 
    Sansom, Christopher L.; Comley, Paul; King, Peter; Almond, Heather; Atkinson, C.; Endaya, E. (Elsevier, 2015-06-05)
    This paper presents a methodology to predict the optical performance and physical topography of the glass collector surfaces of any given CSP plant in the presence of sand and dust storms, providing that local climate ...
  • Production of electronics and photovoltaics using a reel-to-reel process 
    Graham, A.; Morantz, Paul; Comley, Paul (European Society for Precision Engineering and Nanotechnology, 2016-06-30)
    Reel to reel manufacturing is a mature technology that involves the passing of a flexible substrate or web continuously through one or more processes. The web is typically much longer than it is wide, and the width in turn ...
  • Robotic polishing of large optical components 
    Chen, Sulei (Cranfield University, 2014-08)
    Lightweight space mirrors have been widely used in earth observation and astronomy applications. Many organizations and companies, such as NASA in America, ESA in Europe, SSTL in UK as well as CASC in China, have spent a ...
  • Thermal Performance of a Multi-Axis Smoothing Cell 
    Georgiou, Charalambos Andrew (Cranfield University, 2011-05)
    Multi Axis Robots have traditionally been used in industry for pick and place, de-burring, and welding operations. Increasing technological advances have broadened their application and today robots are increasingly being ...