Experiments and Model Simulations of the Viscosity and Dilatation of Glass Coatings with Temperature Dependence

Glass coatings on ceramics or metals are microcomposite materials, consisting of granular oxide phases as pigments and small bubbles that are distributed in glass. Knowledge of dilatation and viscosity versus temperature is essential for applications and simulation methods are necessary. However, the significance of the models depends on the specificity of the compositions and microstructure of glass-containing pigments. In this study, the viscosity and dilatation of glass coatings were characterized by dilatometry and the sessile drop method. The results show how the physical properties vary with the quantity of zircon grains and bubbles. Simulations with calculation methods for bulk glasses show discrepancies with the experiments, which are caused by the presence of zircon grains and bubbles. We provide evidence that improved models can be obtained by adding equations describing the behavior of glasses containing rigid inclusions and bubbles. The resulting methods provide the opportunity to discover new composition areas of glass coatings having predefined combinations of properties.

[1]  C. Leonelli,et al.  Non-contact dilatometry of hard and soft porcelain compositions , 2007 .

[2]  Alexander Fluegel,et al.  Glass viscosity calculation based on a global statistical modelling approach , 2007 .

[3]  O. Mazurin.  Glass properties: compilation, evaluation, and prediction , 2005 .

[4]  A. Priven.  General method for calculating the properties of oxide glasses and glass forming melts from their composition and temperature , 2004 .

[5]  M. Oleg,et al.  DETERMINATION OF THE MOST RELIABLE GLASS PROPERTY VALUES BY THE SCIGLASS INFORMATION SYSTEM , 2004 .

[6]  H. Ogawa,et al.  The apparent viscosity of fine particle reinforced composite melt , 2003 .

[7]  A. I. Priven,et al.  Comparison of methods used for the calculation of density, refractive index and thermal expansion of oxide glasses , 2003 .

[8]  Mushtaque Ahmed,et al.  Characterizing glaze-melting behavior via HSM , 2002 .

[9]  J. Jean,et al.  Viscosity of Porous Low-Dielectric Glass Composite , 2001 .

[10]  M. Shanahan,et al.  CONTACT ANGLE AND SURFACE TENSION MEASUREMENTS ON A METAL DROP BY IMAGE PROCESSING AND NUMERICAL CALCULATION , 2000 .

[11]  Dongqing Li,et al.  A model for a liquid drop spreading on a solid surface , 1998 .

[12]  H. Chiriac,et al.  On the measurement of surface tension for liquid FeSiB glass-forming alloys by sessile drop method , 1997 .

[13]  A. Zosel,et al.  Studies of the wetting kinetics of liquid drops on solid surfaces , 1993 .

[14]  P. C. Panda,et al.  Viscosity of Porous Glasses , 1990 .

[15]  G. Ondracek.  The quantitative microstructure-field property correlation of multiphase and porous materials , 1987 .

[16]  G. Scherer.  Dilatation of Porous Glass , 1986 .

[17]  A. Winkelmann,et al.  Ueber thermische Widerstandscoefficienten verschiedener Gläser in ihrer Abhängigkeit von der chemischen Zusammensetzung , 1894 .