Transcript lecture 15 powerpoint

Internal Boundaries
Grain Boundaries: (i) Special; (ii) General
Domain Boundaries (category of special grain boundaries)
symmetric tilt boundary
D
b
b

sin 
Chiang, Bernie, and Kingery, “Physical Ceramics: Principles for Ceramic Science & Engineering” Wiley 1997
asymmetric tilt boundary
Allen and Thomas “The Structure of Materials” Wiley 1999.
Chiang, Bernie, and Kingery, “Physical Ceramics: Principles for Ceramic Science & Engineering” Wiley 1997
Allen and Thomas “The Structure of Materials” Wiley 1999.
Allen and Thomas “The Structure of Materials” Wiley 1999.
twist boundary
screw dislocation
out of the plane
screw dislocation
in the plane
Chiang, Bernie, and Kingery, “Physical Ceramics: Principles for Ceramic Science & Engineering” Wiley 1997