By Ritwik Sarkar
This up to date reprint offers up to date info on refractories know-how awarded by way of well-known specialists within the box. made out of centred periods of 2 Refractory Ceramics department conferences, refractory scientists from world wide have been invited to supply overviews of the medical rules relating to refractory production and function. the result's this informative quantity and a present view of the Fundamentals of Refractory Technology.Content:
Chapter 1 Particle dimension Distribution as a Predictor of Suspension circulation habit (pages 3–28): Randall M. German
Chapter 2 Rheology and Plasticity for Ceramic Processing (pages 29–52): William M. Carty
Chapter three the character of Chemical Reactions that happen in the course of Castable deploy and Analytical thoughts Used to keep on with those Reactions (pages 53–71): C.D. Parr, C Revais and H. Fryda
Chapter four hot temperature Mechanical habit of Magnesiagraphite Refractories (pages 73–92): Carmen Baudin
Chapter five wanted primary Thermomechanical fabric homes for Thermomechanical Finite point research of Refractory constructions (pages 93–101): Charles Arthur Schacht
Chapter 6 Porous Ceramic Simulation of Reservoir Rocks choice of Porosity by way of electrical Permittivity Measurements (pages 103–134): Joaquin Lira?Olivares, Diana Marcano, Cyril Lavelle and Francisco Garcia Sanchez
Chapter 7 Corrosion of business Refractories (pages 135–154): M. Rigaud
Chapter eight program of Thermochemislry to Refractories (pages 157–170): Akira Yamaguchi
Chapter nine Creep dimension and research of Refractories (pages 171–193): J. G. Hemrick and A. A. Wereszczak
Chapter 10 Corrosion of Refractories in Glass?Melting program (pages 195–221): SM Winder and KR Selkregg
Chapter eleven Oxyfuel Firing results on Refractories (pages 223–233): R. E. Moore, M. Velez, M. Karakus and W. D. Headrick
Chapter 12 Cold?Setting Cordierite Castables (pages 235–244): Esteban F. Aglietti, Nora E. Hipedinger and Alberto N. Scian
Chapter thirteen forms of in situ Refractories (pages 245–252): W E Lee, S Zhang and H Sarpoolaky
Chapter 14 using Modeling in Refractories (pages 253–259): Charles E. Semler
Chapter 15 bathtub Penetration of Barrier Refractories for Aluminum Electrolytic Cells (pages 261–288): George Oprea
Chapter sixteen Interfacial Phenomena (pages 289–307): Claude Allaire
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Sample text
21. J. R. Parrish, "Packing of Spheres," Nature, 190, 800 (1961) 22. H. E. White and S. F. Walton, "Particle Packing and Particle Shape," J. Am. Ceram. Soc, 20, 155-166 (1937). 24. R. M. German, "Homogeneity Effects on Feedstock Viscosity in Powder Injection Molding,"/. Am. Ceram. Soc, 77, 283-285 (1994). 24. R. K. McGeary, "Mechanical Packing of Spherical Particles," J. Am. Ceram. Soc, 44, 513-522(1961). 25. M. Takahashi and S. Suzuki, "Numerical Analysis of Tapping Behavior of Ceramic Powders," Ceram.
I w Pseudoplastic (with yield point) in 1 v"7 / η(ΐ) / " η(2) / / / / Shear Rate Figure 2. Schematic illustration of different apparent viscosities due to shear rate dependence of a fluid. The apparent viscosity is the slope through the origin for a shear stress/shear rate data pair. (η(ΐ> > ημν shear thinning) 32 Shear Rate (γ) Figure 3. Four major types of time independent rheological behavior exhibited by particle suspensions: A) Newtonian; B) Bingham (ideal); C) pseudoplastic; D) dilatent. The axes are linear.
Essentially, higher suspension concentrations are possible with spherical particles compared to the concentrations possible with other particle morphologies. ) and clay (EPK, Zemex Minerals, Edgar, FL) at the same concentration and roughly the same mean particle size. ) Because a sphere represents the lowest surface to volume ratio of any shape, a non-spherical particle of similar size would have a larger specific surface area, thus requiring more water to create the adsorbed water layer. The reduction of excess water is considered a minimal contribution, however, and if a spherical particle size is assumed for the sake of calculation, the surface area effected is somewhat overestimated, leading to the potential for erroneous evaluation of the data.
