University Of Limerick

Ceramics and Glass Science 2

MT4805

Iowa State Course Substitution

MAT E Technical Elective

MAT E

Course Info
International Credits:
6.0
Converted Credits:
3.5
Semester:
fall
Country:
Ireland
Language:
English
Course Description:
Development of microstructure and texture in ceramics. Grain and inter-phase boundaries and their energies. Significance of dihedral angle. Examples of different microstructural types. Structure/property relationships in ceramics. Theoretical tensile strength and the Griffith's criterion. Cracks and stress concentration. Orowan and Irwin analyses. Fracture in brittle materials. Stress intensity factor. Fracture toughness. Criteria for high strength ceramics. Approaches to processing: (1) flaw-minimal fabrication (2) microstructural engineering. Examples: silicon nitride-based ceramics. Equivalent behaviour diagrams (Si-Al-O-N). Zirconia and its ôalloysö. Monoclinic-tetragonal phase transformation. Transformation toughening. Statistical variation of strength. Weibull modulus. Temperature dependence of strength. Sub-critical crack growth. Crack velocity-stress intensity relationship and lifetime predictions. Strength-probability-time diagrams. Plastic deformation in ceramics. Slip systems for magnesia, alumina. Effects of grain size, temperature and strain rate on deformation mechanisms. Creep and deformation maps. Theoretical strength of glass. Fracture. Considerations of variability of practical strengths. Improvements in strength. Toughening. Lamination. Coatings. Chemical toughening. Devitrification of glasses. Nucleation and crystal growth. Application to glass-ceramics. Consideration of glass-ceramic systems and properties. Optical properties. Refractive index. Coloured glasses. Opacity. Scattering and absorption.

Review

Evaluation Date:
March 8, 2017
Evaluated:
Lawrence Genalo
Comments:
This is certainly not like MAT E 273 or any other MAT E classes. It contains parts of several MAT E classes and would be a good technical elective.