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In flexed-plate impact tests at room temperature, injection-molded disks of polyether sulphone could not be broken or penetrated by an impactor with an incident energy of 238 J. A central hole 1 mm in diameter was sufficient to embrittle a high proportion of the specimens subjected to the same impact. The failures could be segregated into three classes. A few subsidiary tests on thinned specimens with no hole suggest that in this particular molded form, and under the specific test conditions used, polyether sulphone has a tough-brittle transition within the thickness range of 1.4 to 2.0 mm.
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OAC Review Index, J. Weir, James Mills, E.C. Hallman, R.E. Gunn, R.G. Baker, A.P. Suckling, W. Yeo, R.H. Reynolds, Juan Rivara, D.H. Galbraith, W.C. McKillican, W.R. Dewar, Atkinson (A.), William Dryden, M.W. Doherty, J.P. Cleal, P.E. Reed, W.C. Mcfayden, R.H. Paul, T.C. Barber, M.F. Coglon, Young, C.J. Zavitz, A.A. Dysart, J.M. Mccallum, B.W. Fausher, Ontario Agricultural College. Student Societies. Athletic Association· 1902
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OAC Review Index, G. Harcourt, F.W. Race, A.L.F. Lehmann, S.H. Clark, J.C. McBeath, D.M. Johnston, E.L. Gray, A.H. MacLennan, R.R. Moore, Charles Ambrose Zavitz, G.G. White, C. Tice, P. Stewart, G.M. Stewart, W. Southworth, J.P. Sackville, W.H. Robertson, P.E. Reed, F.H. Reed, L.H. Newman, G.P. McRostie, A.A. MacMillan, J. Murray, A.W. Mason, A.J. Mann, A.J. Logsdail, C.W. Leggatt, D.C. Laird, L.S. Klinck, E.A. Howes, E.S. Hopkins, J.R. Higgins, S.H. Gandier, D.H. Galbraith, S.G. Freeborn, G.E. De Long, N. Curtis, H.A. Craig, T.O. Clark, G.H. Clark, T.G. Bunting, F.W. Broderick, W. Barton, W.D. Albright· 1925