These papers deal with stress relaxation (viscoelasticity) and structural relaxation (and glass transition phenomena). I first got interested in this problem while working at Corning Glass Works, because we found that the stresses in optical fibers were large enough to affect their optical properties. While presenting some of that work, I had the good fortune to meet Dr Simon Rekhson, who taught me about structural relaxation in glass. We incorporated Narayanaswamy’s theory of structural relaxation into an extensive study of viscoelastic effects in glass-to-metal seals. Recently, we have studied viscoelastic effects in cement paste and in stone containing clays.
Relevant papers:
Stress in Optical Fibers
"Stress-Induced Index Profile Distortion in Optical Waveguides", G. W. Scherer, Applied Optics 19 [12] (1980) 2000-2006
"Thermal Stresses in Clad-Glass Fibers", G. W. Scherer and A. R. Cooper, J. Am. Ceram. Soc. 63 [5-6] (1980) 346-347
"Stress-Optical Effects in Optical Waveguides", G. W. Scherer, J. Non-Cryst. Solids 38-39 (1980) 201-204
"Stress in Optical Waveguide Fibers", G. W. Scherer and A. R. Cooper, pp. 193-203 in Advances in Ceramics, Volume II, Physics of Fiber Optics, ed. B. Bendow and S. Mitra, (Am. Ceram. Soc., Inc., Columbus, Ohio, 1981)
"Thermal Stresses in Optical Fibers: Fluid Core Assumption", G. W. Scherer, J. Non-Cryst. Solids 51 (1982) 323-332
Structural Relaxation
"Model of Structural Relaxation in Glass with Variable Coefficients", G. W. Scherer and S. M. Rekhson, J. Am. Ceram. Soc. 65 [6] (1982) C94-C96
"Glass Transition as a Function of Cooling Rate", S. M. Rekhson and G. W. Scherer, J. de Physique 43 [12] (1982) C9-427-430
"Use of the Adam-Gibbs Equation in the Analysis of Structural Relaxation", G. W. Scherer, J. Am. Ceram. Soc. 67 [7] (1984) 504-511
"Structural Relaxation in Gel-Derived Glasses", G. W. Scherer, C. J. Brinker, and E. P. Roth, J. Non-Cryst. Solids 82 (1986) 191-197
"Volume Relaxation Far from Equilibrium", G. W. Scherer, J. Am. Ceram. Soc. 69 [5] (1986) 374-381
“The Glass Transition”, G.W. Scherer, pp. 254-278 in Glass ‘89: Survey Papers of XVth Int. Cong. Glass, Leningrad, 1989
“Theories of Relaxation”, G.W. Scherer, J. Non-Cryst. Solids 123 (1990) 75-89
“Glass Formation and Relaxation”, G.W. Scherer, pp. 119-173 in Materials Science and Technology, Vol. 9: Glasses and Amorphous Materials, ed. J. Zarzycki (VCH, Weinheim, Germany, 1991)
“Relaxation and Glass Transition in an Isostatically Compressed Diopside Glass”, L. Wondraczek, H. Behrens, Y. Yue, J. Deubener, G.W. Scherer, J. Am. Ceram. Soc. 90 [5] (2007) 1556–1561
Glass-to-Metal Seals (and other composites)
Relaxation in Glass and Composites
G.W. Scherer (Wiley, New York, 1986; reprinted by Krieger, Malabar, FL, 1992) 331 pp.
"Viscoelastic-Elastic Composites: I, General Theory", G. W. Scherer and S. M. Rekhson, J. Am. Ceram. Soc. 65 [7] (1982) 352-360
"Viscoelastic-Elastic Composites: II, Sandwich Seal", G. W. Scherer and S. M. Rekhson, J. Am. Ceram. Soc. 65 [8] (1982) 399-406
"Viscoelastic-Elastic Composites: III, Bead Seal", S. M. Rekhson and G. W. Scherer, J. Am. Ceram. Soc. 65 [9] (1982) 419-425
"Dilatational Relaxation in Cylindrical Seals", G. W. Scherer, J. Am. Ceram. Soc. 65 [10] (1982) 491-496
"Viscoelastic Analysis of Glass-to-Glass Sandwich Seals", G. W. Scherer, J. de Physique 43 [12] (1982) C9- 443-446
"Viscoelastic Analysis of Thermal Stresses in a Composite Sphere", G. W. Scherer, J. Am. Ceram. Soc. 66 [1] (1983) 59-65
"Viscoelastic Analysis of the Split Ring Seal", G. W. Scherer, J. Am. Ceram. Soc. 66 [2] (1983) 135-139
"Viscoelastic Thermal Stress Analysis", G. W. Scherer, J. Non-Cryst. Solids 54 (1983) 223-240
"Viscoelastic Analysis of Stresses in Composites", G. W. Scherer and S. M. Rekhson, pp. 245-318 in Treatise on Materials Science and Technology: Glass IV (Academic Press, New York, 1985)
"Use of a Bimaterial Strip to Predict Expansion Compatibility", G.W. Scherer, J. Dental Research 66 (1987) 1340
Viscoelastic Relaxation in Gels, Cement, and Stone
Gels
“Relaxation of a Viscoelastic Gel Bar: I. Theory”, G.W. Scherer, J. Sol-Gel Sci. Tech. 1 (1994) 169-175
“Relaxation of a Viscoelastic Gel Bar: II. Silica Gel”, G.W. Scherer, J. Sol-Gel Sci. Tech. 2 [1/2/3] (1994) 199-204
“Effect of drying on viscoelasticity and permeability of gel”, G.W. Scherer, pp. 209-215 in Better Ceramics Through Chemistry VI, eds. A.K. Cheetham, C.J. Brinker, M.L. Mecartney, and C. Sanchez (Mat. Res. Soc., Pittsburgh, PA, 1994)
“Influence of viscoelasticity and permeability on the stress response of silica gel”, G.W. Scherer, Langmuir 12 [5] (1996) 1109-1116
“Viscoelasticity and permeability of silica gels”, G.W. Scherer, Faraday Disc. 101 (1995) 225-234;287-291
“Interaction of formic acid with the silica gel network”, K.G. Sharp and G.W. Scherer, J. Sol-Gel Sci. Tech. 8 (1997) 165-171
Cement
“Beam-bending method for permeability and creep characterization of cement paste and mortar”, W. Vichit-Vadakan and G.W. Scherer, pp. 27-32 in Creep, Shrinkage and Durability Mechanics of Concrete and Other Quasi-Brittle Materials, eds. F.-J. Ulm, Z.P. Bazant, & F.H. Wittmann (Elsevier, Amsterdam, 2001)
“Measuring Permeability of Rigid Materials by a Beam-Bending Method: III. Cement Paste”, W. Vichit-Vadakan and G.W. Scherer, J. Am. Ceram. Soc. 85 [6] 1537–44 (2002) ; Erratum, J. Am. Ceram. Soc. 87 [8] (2004) 1615
“Measuring permeability and stress relaxation of young cement paste by beam-bending”, W. Vichit-Vadakan and G.W. Scherer, Cement Concrete Res. 33 (2003) 1925-1932
“Thermal expansion kinetics: Method to measure permeability of cementitious materials: III, Effect of viscoelasticity”, G.W. Scherer, J. Am. Ceram. Soc. 87 [8] (2004) 1509-1516
Stone
“Effect of swelling inhibitors on the swelling and stress relaxation of clay-bearing stones”, I. Jiménez González and G.W. Scherer, Environmental Geology 46 (2004) 364–377