?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F262%2F&rft.title=Acid+Polishing+of+Lead+Crystal+Glass&rft.creator=Fowler%2C+Andrew&rft.creator=Gonzalez%2C+Maria&rft.creator=Hegarty%2C+Alan&rft.creator=King%2C+John&rft.creator=Ockendon%2C+Hilary&rft.creator=O%E2%80%99Brien%2C+Stephen&rft.creator=Robinson%2C+Marguerite&rft.creator=Shishkin%2C+G.+I.&rft.creator=Tocher%2C+David&rft.creator=Wang%2C+Qi&rft.subject=Materials&rft.description=The+industrial+partner+manufactures+high+quality+lead+crystal+glassware.+The+cutting+of+decorative+features+in+the+glass+damages+the+surface+and+the+cuts+are+optically+opaque%3B+to+restore+transparency%2C+the+glass+is+polished+in+a+solution+of+hydrofluoric+(HF)+and+sulphuric+acid+(H2+SO4+.)+The+polishing+process+comprises+three+stages%3A%0D%0A+++1.+immersion+in+a+polishing+tank+containing+acid%3B%0D%0A+++2.+rinsing+in+a+tank+containing+water%3B+and%0D%0A+++3.+settlement+of+the+solid+reaction+products+in+a+settlement+tank.%0D%0AThe+manufacturer+hopes+to+optimise+its+polishing+process+to%0D%0A++++%E2%80%A2+minimise+the+health%2Fenvironmental+impact+of+the+process%3B%0D%0A++++%E2%80%A2+maximise+throughput%3B%0D%0A++++%E2%80%A2+maintain+the+sharpness+of+the+cut+edges+while+still+polishing+to+an+acceptable+level+of+transparency.%0D%0A%0D%0AThe+study+group+was+asked+to+focus+on+modelling+three+aspects+of+the+process%3A%0D%0A++++%E2%80%A2+the+chemical+reactions+involved+in+the+etching+at+the+glass-acid+solution+interface%3B%0D%0A++++%E2%80%A2+the+removal+of+reaction+products+in+the+settlement+tank%3B%0D%0A++++%E2%80%A2+flow+within+the+polishing+tank.&rft.date=2008&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F262%2F1%2Fglassreport.pdf&rft.identifier=++Fowler%2C+Andrew+and+Gonzalez%2C+Maria+and+Hegarty%2C+Alan+and+King%2C+John+and+Ockendon%2C+Hilary+and+O%E2%80%99Brien%2C+Stephen+and+Robinson%2C+Marguerite+and+Shishkin%2C+G.+I.+and+Tocher%2C+David+and+Wang%2C+Qi++(2008)+Acid+Polishing+of+Lead+Crystal+Glass.++%5BStudy+Group+Report%5D+++++